MAKITA G4101R User Manual

アメリカ  
GENERATOR  
INSTRUCTIONS FOR USE  
ISSUE EMD-GU2016  
3ZZ9020166  
WARNING:  
The engine exhaust from this product contains  
chemicals known to the State of California to  
cause cancer, birth defects or other reproductive  
harm.  
NOTICE  
FEDERAL EMISSION COMPONENT DEFECT WARRANTY and CALIFORNIA  
EMISSION CONTROL WARRANTY are applicable to only those engines/  
generators complied with EPA (Environmental Protection Agency) and CARB  
(California Air Resources Board) emission regulations in the U.S.A.  
NOTICE  
To the engines/generators exported to and used in the countries other than the  
U.S.A., warranty service shall be performed by the distributor in each country in  
accordance with the standard engine/generator warranty policy as applicable.  
AIR INDEX  
To show compliance with California emission regulations, a hangtag has been  
provided displaying the Air Index level and durability period of this engine.  
The Air Index level defines how clean an engine’s exhaust is over a period of  
time. A bar graph scaled from “0” (most clean) to “10” (least clean) is used to  
show an engine’s Air Index level. A lower Air Index level represents cleaner  
exhaust from an engine.  
The period of time (in hours) that the Air Index level is measured is known as  
the durability period. Depending on the size of the engine, a selection of time  
periods can be used to measure the Air Index level (see below).  
Descriptive Term Applicable to Emissions Durability Period  
Moderate  
-
-
-
50 hours (engine from 0 to 80 cc)  
125 hours (engine greater than 80 cc)  
Intermediate  
Extended  
125 hours (engine from 0 to 80 cc)  
250 hours (engine greater than 80 cc)  
300 hours (engine from 0 to 80 cc)  
500 hours (engine greater than 80 cc)  
Notice : This hangtag must remain on this engine or piece of equipment, and  
only be removed by the ultimate purchaser before operation.  
FEDERAL EMISSIONS COMPONENT DEFECT WARRANTY  
EMISSIONS COMPONENT DEFECT WARRANTY COVERAGE - This emission warranty is applic-  
able in all States, except the State of California  
Makita U.S.A. Inc., La Mirada, California, (herein "MAKITA") warrant(s) to the initial retail purchaser  
and each subsequent owner, that this Nonroad engine (herein "engine") has been designed, built,  
and equipped to conform at the time of initial sale to all applicable regulations of the U.S.  
Environmental Protection Agency (EPA), and that the engine is free of defects in materials and work-  
manship which would cause this engine to fail to conform with EPA regulations during its warranty  
period.  
For the components listed under PARTS COVERED, the Makita Factory Service Center or Service  
Center authorized by MAKITA will, at no cost to you, make the necessary diagnosis, repair, or  
replacement necessary to ensure that the engine complies with applicable U.S. EPA regulations.  
EMISSION COMPONENT DEFECT WARRANTY PERIOD  
The warranty period for this engine begins on the date of sale to the initial purchaser and continues  
for a period of 2 years.  
PARTS COVERED  
Listed below are the parts covered by the Emission Components Defect Warranty. Some of the parts  
listed below may require scheduled maintenance and are warranted up to the first scheduled  
replacement point for that part.  
(1) Fuel Metering System  
(3) Ignition System  
(i) Carburetor and internal parts (and/or pres-  
sure regulator or fuel injection system).  
(i) Spark plugs.  
(ii) Magneto or electronic ignition system.  
(ii) Air/fuel ratio feedback and control system,  
if applicable.  
(iii) Spark advance/retard system, if applica-  
ble.  
(iii) Cold start enrichment system, if applica-  
ble.  
(4) Exhaust manifold, if applicable  
(5) Miscellaneous Items Used in Above Systems  
(i) Electronic controls, if applicable  
(iv) Regulator assy (gaseous fuel, if applica-  
ble)  
(ii) Hoses, belts, connectors, and assem-  
blies.  
(2) Air Induction System  
(i) Intake manifold, if applicable  
(ii) Air filter.  
(iii) Filter lock assy (gaseous fuel, if applica-  
ble)  
OBTAINING WARRANTY SERVICE  
To obtain warranty service, take your engine to the nearest Makita Factory Service Center or Service  
Center authorized by MAKITA. Bring your sales receipts indicating date of purchase for this engine.  
The Makita Factory Service Center or Service Center authorized by MAKITA will perform the neces-  
sary repairs or adjustments within a reasonable amount of time and furnish you with a copy of the  
repair order. All parts and accessories replaced under this warranty become the property of MAKI-  
TA.EPA - MAKITA FEDERAL EMISSIONS COMPONENT DEFECT WARRANTY-continued  
WHAT IS NOT COVERED  
*Conditions resulting from tampering, misuse, improper adjustment (unless they were made by the  
Makita Factory Service Center or Service Center authorized by MAKITA during a warranty repair),  
alteration, accident, failure to use the recommended fuel and oil, or not performing required mainte-  
nance services.  
*The replacement parts used for required maintenance services.  
*Consequential damages such as loss of time, inconvenience, loss of use of the engine orequip-  
ment, etc.  
*Diagnosis and inspection charges that do not result in warranty-eligible service being performed.  
*Any non-authorized replacement part, or malfunction of authorized parts due to use of non-autho-  
rized parts.  
OWNER'S WARRANTY RESPONSIBILITIES  
As the engine owner, you are responsible for the performance of the required maintenance listed in  
your owner's manual. MAKITA recommends that you retain all receipts covering maintenance on  
your engine, but MAKITA cannot deny warranty solely for the lack of receipts or for your failure to  
ensure the performance of all scheduled maintenance.  
As the engine owner, you should however be aware that MAKITA may deny warranty coverage if  
your engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modi-  
fications.  
You are responsible for presenting your engine to the nearest Makita Factory Service Center or  
Service Center authorized by MAKITA when a problem exists.  
If you have any questions regarding your warranty rights and responsibilities, you should contact  
the Makita Warranty Department at 1-800-4-MAKITA for the information.  
THINGS YOU SHOULD KNOW ABOUT THE EMISSION CONTROL SYSTEM WARRANTY  
MAINTENANCE AND REPAIRS  
You are responsible for the proper maintenance of the engine. You should keep all receipts and  
maintenance records covering the performance of regular maintenance in the event questions  
arise. These receipts and maintenance records should be transferred to each subsequent owner of  
the engine. MAKITA reserves the right to deny warranty coverage if the engine has not been prop-  
erly maintained. Warranty claims will not be denied, however, solely because of the lack of required  
maintenance or failure to keep maintenance records.  
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYS-  
TEMS MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT OR INDIVIDUAL ; HOWEVER,  
WARRANTY REPAIRS MUST BE PERFORMED BY THE MAKITA FACTORY SERVICE CENTER  
OR SERVICE CENTER AUTHORIZED BY MAKITA. THE USE OF PARTS THAT ARE NOT  
EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR  
THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING  
ON THE OUTCOME OF A WARRANTY CLAIM.  
If other than the parts authorized by MAKITA are used for maintenance replacements or for the  
repair of components affecting emission control, you should assure yourself that such parts are  
warranted by their manufacturer to be equivalent to the parts authorized by MAKITA in their perfor-  
mance and durability.  
HOW TO MAKE A CLAIM  
All repair qualifying under this limited warranty must be performed by a Makita Factory Service  
Center or Service Center authorized by MAKITA. In the event that any emission-related part is  
found to be defective during the warranty period, you shall notify Makita Warranty Department at  
1-800-4-MAKITA and you will be advised of the appropriate warranty service dealer or service  
providers where the warranty repair can be performed.  
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT  
(This warranty does not apply in any other state.)  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
The California Air Resources Board and Makita U.S.A., Inc. (herein "MAKITA") are pleased to  
explain the emission control warranty on your 2005 and later small off-road engine (herein  
"engine"). In California, new engine must be designed, built and equipped to meet the State's  
stringent anti-smog standards. MAKITA must warrant the emission control system on your  
engine for the periods of time listed below provided there has been no abuse, neglect or  
improper maintenance of your engine.  
Your emission control system includes parts such as the carburetor or fuel injection systems,  
the ignition system and the catalytic converter. Also included are the hoses, belts, connectors  
and other emission-related assemblies.  
Where a warrantable condition exists, MAKITA will repair your engine at no cost to you including  
diagnosis, parts and labor.  
MANUFACTURER'S WARRANTY COVERAGE :  
The 2005 and later engines are warranted for two years. If any emission-related part on your  
engine is defective, the part will be repaired or replaced by MAKITA.  
OWNER'S WARRANTY RESPONSIBILITIES :  
-As the engine owner, you are responsible for the performance of the required mainte-  
nance listed in your Owner's Manual. MAKITA recommends that you retain all receipts  
covering maintenance on your engine, but MAKITA cannot deny warranty solely for the  
lack of receipts or for your failure to ensure the performance of all scheduled mainte-  
nance.  
-As the engine owner, you should be aware, however, that MAKITA may deny you warran-  
ty coverage if your engine or a part has failed due to abuse, neglect, improper mainte-  
nance or unapproved modifications.  
-You are responsible for presenting your engine to a MAKITA service center as a problem  
exists.  
The warranty repairs should be completed in a reasonable time, not to exceed 30 days.  
If you have any questions regarding your warranty rights and responsibilities, you should con-  
tact a Makita Factory Service Center Manager nearest you. A list of the Factory Service Center  
locations and phone numbers is provided below for your convenience.  
LIMITED WARRANTY  
on Emission Control Systems  
-
California Only  
-
MAKITA , a distributor of small off-road equipment in the U.S., warrants to the owner of 2005  
and later engines that the engine (1) has been designed, built, and equipped at the time of man-  
ufacture so as to conform with the applicable regulations of the California Air Resources Board  
and, (2) is free from defects in materials and workmanship which may cause it to fail to conform  
with those regulations as applicable according to the terms and conditions stated below.  
WARRANTY PERIOD  
This warranty period begins on the date which the engine is delivered to the original retail pur-  
chaser and ends two years after that date. During this two year period MAKITA warrants to the  
original retail purchaser and each subsequent purchaser that the engine is free from defect in  
material and workmanship that can cause the failure of a warranted emission-related part.  
WHAT IS COVERED UNDER THIS WARRANTY  
Repair and/or replacement of any warranted emission-related part will be performed at no  
charge provided the work is performed at an authorized warranty station. There will also be no  
charge for any diagnostic labor performed at an authorized warranty station which leads to the  
determination that a warranted emission-related part is defective.  
Any warranted part which is not scheduled for replacement as required maintenance, or which is  
scheduled only for regular inspection to the effect of "repair or replace as necessary" shall be  
warranted for the warranty period. Any warranted part which is scheduled for replacement as  
required maintenance shall be warranted for the period of time up to the first scheduled replace-  
ment of that part. This warranty shall apply only towards the repair, replacement, and/or adjust-  
ment of the component parts listed below.  
EMISSION-RELATED PARTS COVERED UNDER THIS WARRANTY  
(1) Fuel Metering System  
(i) Carburetor and internal parts (and/or pressure regulator or fuel injection system).  
(ii) Air/fuel ratio feedback and control system, if applicable.  
(iii) Cold start enrichment system, if applicable.  
(iv) Regulator assy (gaseous fuel, if applicable)  
(2) Air Induction System  
(i)Intake manifold, if applicable  
(ii)Air filter.  
(3) Ignition System  
(i)Spark plugs.  
(ii)Magneto or electronic ignition system.  
(iii)Spark advance/retard system, if applicable.  
(4) Exhaust manifold, if applicable  
(5) Miscellaneous Items Used in Above Systems  
(i)Electronic controls, if applicable  
(ii)Hoses, belts, connectors, and assemblies.  
(iii) Filter lock assy (gaseous fuel, if applicable)  
If it is determined by an authorized warranty station that other engine components have been  
damaged due to the failure of a warranted emission-related part during the warranty period,  
MAKITA will repair and/or replace the necessary components.  
WHAT IS NOT COVERED UNDER THIS WARRANTY  
This warranty does not cover any emission-related part which malfunctions, fails, or is dam-  
aged due to alterations and/or modifications such as changing, adding, or removing parts.  
When an engine is being serviced under warranty, MAKITA and any of its authorized dealers,  
distributors, or warranty stations shall not be liable for any loss of use of the engine, for any  
damage to goods, or loss of time or inconvenience. This limited warranty also does not apply  
to any emission-related part which malfunctions, fails, or is damaged due to failure to follow  
the maintenance and operating instructions specified in the 2005 and later Owner's Manual  
including.  
(a) Improper or inadequate maintenance of any warranted emission-related part.  
(b) Improper installation, adjustment, or repair of the engine or any warranted emission-  
related part unless performed by a factory authorized warranty station.  
(c) Failure to use recommended fuel as specified in the 2005 and later Owner's Manual.  
(d) Repairs and diagnosis performed outside of an authorized warranty station.  
(e) Use of parts which are not authorized by MAKITA.  
MAINTENANCE SCHEDULE  
The engine owner is responsible for having all scheduled inspection and maintenance services  
performed at the intervals specified in the 2005 and later Owner's Manual and to retain records  
of these services as having been performed. These records should be transferred to each sub-  
sequent owner of the engine. MAKITA cannot deny a claim solely because there are no  
records of scheduled maintenance, however, a warranty claim may be denied if the failure to  
perform the scheduled maintenance and inspection resulted in the failure of a warranted emis-  
sion-related part.  
As a minimum, the engine owner is responsible for the scheduled inspection and maintenance  
described below which are based on the procedures described in the Owner's Manual.  
PROCEDURE  
INTERVAL  
1) Change engine oil  
: Initial 20 hours and every 100 hours afterward  
: Every 50 hours  
2) Clean air cleaner (element)  
3) Replace air cleaner element  
: Every 200 hours  
4) Clean and adjust spark plug and electrodes : Every 200 hours  
Note: More frequent maintenance may be necessary under dusty, dirty or severe conditions.  
REPAIR AND REPLACEMENT OF EMISSION-RELATED PARTS  
It is recommended that only engine replacement parts which have been authorized and  
approved by MAKITA should be used in the performance of any warranty maintenance or repairs  
of emission-related parts. These replacement parts will be provided at no charge if the part is still  
under warranty.  
HOW TO FILE A WARRANTY CLAIM  
AND WHERE TO GET WARRANTY SERVICES  
Contact the nearest Makita Factory Service Center Manager to determine the appropriate loca-  
tion where the required warranty services are to be performed. A list of the Factory Service  
Center locations and phone numbers are provided below for your convenience.  
41850 Christy Street  
Fremont, CA 94538-5107  
(510)657-9881  
7674 Clairemont Mesa Blvd.  
San Diego, CA 92111  
(619)278-4471  
1421 N. Clovis Ave., Ste. 112  
Fresno, CA 93727  
(209)252-5166  
1714 E. McFadden Ave., Unit M  
Santa Ana, CA 92705  
(714)667-5066  
14930 Northam Street  
La Mirada, CA 90638-5753  
(714)522-8088  
333 Littlefield Ave.  
South San Francisco, CA 94080  
(415)875-1002  
1970 Fulton Avenue  
Sacramento, CA 95825  
(916)482-5197  
16735 Saticoy St., Ste. 105  
Van Nuys, CA 91406  
(818) 782-2440  
1440 South "E" Street  
San Bernardino, CA 92408  
(909)885-1289  
FOREWORD  
Thank you for purchasing a Makita generator.  
This manual covers operation and maintenance of the Makita generators.  
All information in this publication is based on the latest production informa-  
tion available at the time of approval for printing.  
Pay special attention to statements preceded by the following words:  
WARNING  
Indicates a strong possibility of severe personal injury, loss of life and equip-  
ment damage if instructions are not followed.  
[
]
CAUTION  
Indicates a possibility of personal injury or equipment damage if instructions  
are not followed.  
NOTE:  
Gives helpful information.  
If a problem should arise, or if you have any questions about the generator,  
consult an authorized dealer or service shop  
WARNING  
The generator is designed to give safe and dependable service if  
operated according to instructions.  
Do not operate the generator before you have read and under-  
stood the instructions. Failure to do so could result in death, per-  
sonal injury or equipment damage.  
CONTENTS  
1. SAFETY PRECAUTIONS・・・・・・・・・・・・・・・・・・・・・1  
2. SPECIFICATIONS・・・・・・・・・・・・・・・・・・・・・・・・・4  
3. COMPONENTS ・・・・・・・・・・・・・・・・・・・・・・・・・・5  
4. PRE-OPERATION CHECKS ・・・・・・・・・・・・・・・・・・・6  
5. OPERATING PROCEDURES・・・・・・・・・・・・・・・・・・・11  
6. WATTAGE INFORMATION ・・・・・・・・・・・・・・・・・・・・24  
7. SPARK ARRESTER ・・・・・・・・・・・・・・・・・・・・・・・25  
8. MAINTENANCE SCHEDULE・・・・・・・・・・・・・・・・・・・26  
9. "HOW-TO" MAINTENANCE ・・・・・・・・・・・・・・・・・・・28  
10. PREPARATION FOR STORAGE・・・・・・・・・・・・・・・・・31  
11. TROUBLESHOOTING ・・・・・・・・・・・・・・・・・・・・・・32  
12. WIRING DIAGRAM ・・・・・・・・・・・・・・・・・・・・・・・・33  
13. OPTIONAL PARTS ・・・・・・・・・・・・・・・・・・・・・・・・38  
1. SAFETY PRECAUTIONS  
Do not operate the generator near gasoline or gaseous fuel because of the  
potential danger of explosion or fire.  
Do not fill the fuel tank with fuel while the engine is running. Do not smoke or  
use open flame near the fuel tank. Be careful not to spill fuel during refueling.  
If fuel is spilt, wipe it off and let dry before starting the engine.  
Do not place in flammables near the generator.  
Be careful not to place fuel, matches, gunpowder, oily cloths, straw, trash, or  
any other in flammables near the generator.  
Do not operate the generator inside a room, cave, tunnel, or other insufficient-  
ly ventilated area. Always operate it in a well-ventilated area, otherwise the  
engine may become overheated, and the poisonous carbon monoxide gas  
contained in the exhaust gases will endanger human lives. Keep the,genera-  
tor at least 1 meter (3 feet) away from any structure or building during use.  
If the generator must be used indoors, the area must be well-ventilated and  
extreme caution must be taken regarding the discharge of exhaust gases.  
Do not enclose the generator nor cover it with a box.  
The generator has a built-in forced air cooling system, and may become over-  
heated if it is enclosed. If generator has been covered to protect it from the  
weather during non use, be sure to remove it and keep it well away from the  
area during generator use.  
Operate the generator on a level surface.  
It is not necessary to prepare a special foundation for the generator.  
However, the generator will vibrate on an irregular surface, so choose a level  
place without surface irregularities.  
If the generator is tilted or moved during operation, fuel may spill and / or the  
generator may tip over, causing a hazardous situation.  
Proper lubrication cannot be expected if the generator is operated on a steep  
incline or slope. In such a case, piston seizure may occur even if the oil is  
above the upper level.  
1-  
Pay attention to the wiring or extension cords from the generator to the con-  
nected device.  
If the wire is under the generator or in contact with a vibrating part, it may  
break and possibly cause a fire, generator burnout, or electric shock hazard.  
Replace damaged or worn cords immediately.  
Do not operate in rain, in wet or damp conditions, or with wet hands.  
The operator may suffer severe electric shock if the generator is wet due to  
rain or snow.  
If wet, wipe and dry it well before starting. Do not pour water directly over the  
generator, nor wash it with water.  
Be extremely careful that all necessary electrical grounding procedures are  
followed during each and every use. Failure to do so can be fatal.  
Do not contact the generator to a commercial power line. Connection to a  
commercial power line may short circuit the generator and ruin it or cause  
electric shock hazard. Use the transfer switch for connecting to domestic cir-  
cuit.  
No smoking while handling the battery. The battery emits flammable hydrogen  
gas, which can explode if exposed to electric arcing or open flame.  
Keep the area well-ventilated and keep open flames/sparks away when han-  
dling the battery.  
Engine becomes extremely hot during and for some time after operation.  
Keep combustible materials well away from generator area.  
Be very careful not to touch any parts of the hot engine especially the muffler  
area or serious burns may result.  
Keep children and all bystanders at a safe distance from work areas.  
2-  
It is absolutely essential that you know the safe and proper use of the power  
tool or appliance that you intend to use. All operators must read, understand  
and follow the tool/appliance owners manual. Tool and appliance applica-  
tions and limitations must be understood. Follow all directions given on  
labels and warnings. Keep all instruction manuals and literature in a safe  
place for future reference.  
Use only "LISTED" extension cords.  
When a tool or appliance is used outdoors, use only extension cords  
marked "For Outdoor Use". Extension cords, when not in use should be  
stored in a dry and well ventilated area.  
Always switch off generator's no-fuse breaker and disconnect tools or appli-  
ances when not in use, before servicing, adjusting, or installing accessories  
and attachments.  
3-  
2. SPECIFICATIONS  
MODEL  
G2800R  
G4100R, G4101R  
G6100R, G6101R  
Type  
Brushless, Self-Exciting, 2-Poles, Single Phase  
Condenser type  
Voltage regulator  
Rated voltage  
60 Hz  
60 Hz  
60 Hz  
120 V  
120 V/ 240 V  
Maximum  
output  
2.8 kW  
4.1 kW  
5.8 kW  
Rated output  
Rated power factor  
DC output  
2.3 kW  
3.6 kW  
4.8 kW  
1.0  
12V  
fuse Breaker  
Robin EH25-2D  
-8.3A  
Over current protector  
Model  
No-  
Robin EH17-2D  
Robin EH34D  
Type  
Forced air-cooled, 4-cycle, Gasoline Engine  
Displacement  
Fuel  
172 cm3  
251 cm3  
338 cm3  
Automotive unleaded gasoline  
3.17 US-gal  
(12.0 liter)  
4.39 US-gal  
(16.6 liter)  
5.68 US-gal  
(21.5 liter)  
Fuel tank capacity  
Rated continu-  
ous operation  
(Approx.)  
60 Hz  
9.0 hours  
7.0 hours  
7.0 hours  
Starting system  
Length  
Recoil  
Recoil (Electric starter)*  
22.4 in. (570 mm)  
16.1 in. (410 mm)  
19.3 in. (490 mm)  
24.4 in. (620 mm)  
17.7 in. (450 mm)  
21.3 in. (540 mm)  
26.8 in. (680 mm)  
18.5 in. (470 mm)  
24.4 in. (619 mm)  
Width  
High  
27.2 lb (60 kg)  
28.8 lb (63.5 kg)*  
35.3 lb (78 kg)  
37.0 lb (81.5 kg)*  
Dry weight  
(Electric start type)  
21.8 lb (48 kg)  
0.0039  
±
0.0012 in. (0.1  
±
0.03 mm)  
0.0039±0.0006 in.(0.1±0.015 mm)  
Valve clearance  
(Intake and Exhaust)  
Note : Adjust the valve clearance while the engine is cold.  
Emissions Durability Period  
(California only)  
500 hours  
Specifications are subject to change without notice.  
: Electric starter is available as option  
*
4-  
3. COMPONENTS  
PILOT LAMP  
NO-FUSE  
BREAKER  
KEY SWITCH  
)
(
Electric starter type  
FULL POWER  
SWITCH  
IDLE  
CONTROL  
SWITCH  
CHOKE KNOB  
AIR CLEANER  
VOLTMETER  
RECOIL STARTER  
AC RECEPTACLE  
OIL SENSOR  
TANK CAP  
FUEL GAUGE  
SPARK PLUG  
DC CIRCUIT  
BREAKER  
MUFFLER  
DC OUTPUT  
TERMINAL  
EARTH  
(
GROUND  
TERMINAL  
)
OIL DRAIN PLUG  
OILGAUGE (OIL FILLER)  
5-  
4. PRE-OPERATION CHECKS  
CHECK ENGINE OIL.  
Before checking or refilling oil, be sure  
OIL GAUGE  
(OIL FILLER)  
generator is located on stable and level  
surface with engine stopped.  
Remove oil filler cap and check the  
engine oil level.  
UPPER LEVEL  
If oil level is below the lower level line,  
refill with suitable oil (see table) to  
upper level line. Do not screw in the  
oil filler cap when checking oil level.  
LOWER  
LEVEL  
OIL FILLER NECK  
Change oil if contaminated.  
(See "How-To" Maintenance.)  
Oil capacity  
Model  
Upper level  
G2800R ・・・・0.17 US-gal. (0.65 liter)  
G4100R,G4101R0.26 US-gal. (1.0 liter)  
G6100R,G6101R0.32 US-gal. (1.2 liter)  
UPPER LEVEL  
LOWER LEVEL  
Recommended engine oil:  
Use 4-stroke automotive detergent  
oil of API service class SE or  
higher grade (SG, SH or SJ is  
5W  
10W  
20W  
#20  
Single grade  
recommended). SAE 10W-30 or  
10W-40 is recommended for  
#30  
#40  
general, all-temperature use. If  
single viscosity oil is used, select  
the appropriate viscosity for the  
average temperature in your area.  
10W  
-30  
Multigrade  
10W  
-
40  
Ambient  
temperature  
6-  
CHECK ENGINE FUEL.  
WARNING  
Do not refuel while smoking or near open flame or other such potential  
fire hazards. Otherwise fire accident may occur.  
Check fuel level at fuel level gauge.  
FUEL FILTER  
SCREEN  
If fuel level is low, refill with unlead-  
ed automotive gasoline.  
TANK CAP  
This engine is certified to operate  
on automotive unleaded gasoline.  
Be sure to use the fuel filter screen  
on the fuel filter neck.  
Fuel tank capacity:  
G2800R・・・・・3.17 US-gal. (12.0 liter)  
G4100R,G4101R 4.39 US-gal. (16.6 liter)  
G6100R,G6101R 5.68 US-gal. (21.5 liter)  
FULL  
EMPTY  
WARNING  
Make sure you review each warning in order to prevent fire hazard.  
Do not refill tank while engine is running or hot.  
Close fuel cock before refueling with fuel.  
Be careful not to admit dust, dirt, water or other foreign objects Into  
fuel.  
Wipe off spilt fuel thoroughly before starting engine.  
Keep open flames away.  
7-  
CHECKING COMPONENT PARTS  
Check following items before starting engine:  
Fuel leakage from fuel hose, etc.  
Bolts and nuts for looseness.  
Components for damage or breakage.  
Generator not resting on or against any adjacent wiring.  
CHECK GENERATOR SURROUNDINGS.  
WARNING  
Make sure you review each warning in order to prevent fire hazard.  
Keep area clear of in flammables or other hazardous materials.  
Keep generator at least 3 feet (1 meter) away from buildings or other  
structures.  
Only operate generator in a dry, well ventilated area.  
Keep exhaust pipe clear of foreign objects.  
Keep generator away from open flame. No smoking!  
Keep generator on a stable and level surface.  
Do not block generator air vents with paper or other material.  
8-  
BATTERY INSTALLTION (Electric starter model)  
Recommended Battery: A capacity of 12V-24AH or larger.  
WARNING  
Death, personal injury and/or property damage may occur unless instruc-  
tions are followed carefully.  
Use battery of recommended capacity.  
Turn the starter switch to the "STOP" position when mounting or dis-  
mounting battery. When mounting battery, connect the positive (+) cable  
first and then the negative (-) cable to the battery. Be careful not to  
short battery cables. When dismounting battery, disconnect negative (  
-)  
cable first.  
RED CABLE  
: To positive (+) terminal  
: To negative ( ) terminal  
BLACK CABLE  
-
Should the connection be made in incorrect manner, the generator will  
be broken.  
Tighten bolts and nuts on terminals securely so they will not be loos-  
ened by vibration.  
Disconnect battery cables when charging battery.  
"HOW TO" INSTALL BATTERY (See "OPTIONAL PARTS")  
9-  
GROUNDING THE  
GENERATOR  
To ground the generator to the earth,  
connect the grounding lug of the gen-  
erator to the grounding spike driven  
into the earth or to the conductor  
which has been already grounded to  
the earth.  
GROUNDING SPIKE  
If such grounding conductor or  
EARTH TERMINAL  
grounding electrode is unavailable,  
connect the grounding lug of the gen-  
erator to the grounding terminal of the  
using electric tool or appliance.  
10-  
5. OPERATING PROCEDURES  
STARTING THE ENGINE  
ON  
CAUTION  
Check the oil level before each  
operations as outlined on page 6.  
(a) Turn the engine switch to the position  
"ON". (Recoil starter model only)  
OFF  
(b) Turn the no-fuse breaker to the "OFF"  
position.  
CLOSE  
(c) Open the fuel cock.  
CLOSE  
OPEN  
(d) Pull the choke knob to close if the  
engine is cold.  
(e)Recoil starter model]  
Pull the starter handle slowly until  
resistance is felt.  
This is the "compression" point.  
Return the handle to its original posi-  
tion and then pull swiftly.  
CLOSE  
RECOIL STARTER  
HANDLE  
If the engine fails to start after several  
attempts, repeat above procedures  
with choke knob returned to open.  
Do not fully pull out the rope.  
After starting, allow the starter handle  
to return to its original position while  
still holding the handle.  
11-  
(f)Electric starter model]  
STOP  
RUN  
START  
Insert the key into the key switch and  
turn it clockwise to the "RUN" position  
to start the engine.  
RUN  
STOP  
START  
Then turn the key further to the  
"START" position. The engine will be  
started by starting motor.  
CAUTION  
Do not run the starting motor over 5 seconds continuously.  
If the engine fails to start, return the key to the "RUN" position and wait  
about 10 seconds then start again.  
Do not turn the key switch to "START" when th engine is running to pre-  
vent damage of starting motor.  
Do not turn the key switch to "START" position when the engine is run-  
ning to prevent damage of starting motor.  
When starting the engine by recoil starter, set the key switch at the "ON"  
position and pull the starter handle.  
(g) After the engine started, return the  
choke knob gradually to "OPEN" posi-  
tion.  
OPEN  
(h) Warm up the engine without a load for  
a few minutes.  
12-  
USING ELECTRIC POWER  
WARNING  
Make sure that the appliance is switched OFF before connecting it to  
the generator.  
Do not move the generator while it is running.  
Be sure to ground the generator if the connected appliance is  
grounded. Failure to ground unit may lead to electrical shock.  
CONTROL PANEL  
(G2800R)  
9
11  
1
ENGINE SWITCH  
ON  
PILOT LAMP  
AC BREAKER  
ON  
OFF  
OFF  
4
2
AC 120V  
AC MAX 19.2A  
ON  
OFF  
DC Battery charge only  
DC 12V - 8.3A  
DC BREAKER  
GROUND  
5
7
3
1 No-fuse breaker  
7 DC circuit breaker  
8 Idle control switch  
9 Engine switch  
2 AC receptacle  
3 Earth (Ground) teminal  
4 Voltmeter  
!
!
0
1
Key switch  
Pilot lamp  
5 DC output terminal  
6 Full power switch  
13-  
(G4101R / G4100R)  
8
6
4
11  
1
10  
ENGINE SWITCH  
ON  
AC BREAKER  
ON  
START SWITCH  
FULL POWER SWITCH  
PILOT LAMP  
120V  
120V/240V  
9
IDLE CONTROL  
ON OFF  
ON  
OFF  
7
OFF  
DC BREAKER  
OFF  
G4100R  
TEST  
30A  
125V  
20A  
125V  
20A  
RESET  
Battery charge  
only  
AC MAX 30A  
AC MAX 20A  
AC 120V  
AC MAX 20A  
DC 12V 8.3A  
-
AC MAX 20A  
AC 120V / 240V  
5
3
GROUND  
2
(G6101R / G6100R)  
8
6
4
11  
1
10  
ENGINE SWITCH  
ON  
START SWITCH  
FULL POWER SWITCH  
120V 120V/240V  
PILOT LAMP  
AC BREAKER  
ON  
9
IDLE CONTROL  
ON OFF  
ON  
OFF  
7
OFF  
DC BREAKER  
OFF  
G6100R  
TEST  
30A  
125V  
20A  
125V  
20A  
RESET  
Battery charge  
only  
AC MAX 30A  
AC MAX 20A  
AC 120V  
AC MAX 20A  
DC 12V 8.3A  
-
AC MAX 20A  
AC 120V / 240V  
5
3
GROUND  
2
14-  
(1) AC APPLICATION  
(a) Check the pilot lamp for proper voltage.  
This generator is thoroughly tested and  
adjusted in the factory. If the generator  
does not produce the specified voltage,  
consult your nearest Makita factory or  
authorized service center.  
PILOT LAMP  
(b) Turn off the switch (es) of the electrical  
appliance (s) before connecting to the  
generator.  
(c) Insert the plug (s) of the electrical appli-  
ance(s) into the receptacle.  
Check the amperage of the receptacles  
used referring to TABLE 1, and be sure  
not to take a current exceeding the  
specified amperage.  
Be sure that the total wattage of all  
appliances dose not exceed the rated  
output of the generator.  
(d) Turn the no-fuse breaker to the posi-  
tion "ON".  
ON  
OFF  
15-  
Style  
Ampere  
Receptacle  
AC plug  
Description  
GFCI (Ground Fault  
Circuit Interrupter)  
Receptacle, duplex  
(REC 1)  
NEMA  
5-20R  
NEMA  
5-20P  
up to 20A  
NEMA  
L14-20R  
NEMA  
L14-20P  
Locking Receptacle  
(REC 4)  
up to 20A  
up to 30A  
up to 20A  
NEMA  
L5-30R  
NEMA  
L5-30P  
Locking Receptacle  
(REC 2)  
NEMA  
L5-20R  
NEMA  
L5-20P  
Locking Receptacle  
(REC 3)  
TABLE 1  
WARNING  
To take power out from the TWIST  
LOCK RECEPTACLE, insert the  
plug into the receptacle, and turn  
it clockwise to the lock position.  
TWIST  
Be sure to ground the generator if  
the connected electrical device Is  
grounded.  
NOTE :  
When the no-fuse breaker turns off during operation, the generator is over loaded  
or the appliance is defective. Stop the generator immediately, check the appliance  
and / or generator for overloading or detect and have repaired as necessary by  
Makita factory or authorized service center.  
CAUTION  
The duplex 120V receptacle is protected by a GFCI (Ground Fault Circuit  
Interrupter). GFCI shuts off the output current from the duplex 120V  
receptacle when a ground fault occurs in the generator or the appliance.  
Please note that other receptacles are not protected by GFCI.  
16-  
GFCI RECEPTACLE  
After starting the engine, check the GFCI for proper functioning by the following  
test procedure.  
Push yellow TEST button, The red RESET button will pop out exposing the  
word TRIP. Power is now off at the outlets protected by the GFCI, indicating  
that the device is functioning properly.  
If TRIP dose not appear when testing, do not use the generator. Call a quali-  
fied electrician.  
To restore power, push RESET button.  
WARNING  
If the RESET button pops out during operation, stop the generator imme-  
diately and call a qualified electrician for checking generator and the  
appliances.  
FULL POWER SWITCH  
Select the voltage using the FULL  
POWER SWITCH in accordance with the  
electrical appliance.  
240V  
120V  
120V  
Refer to TABLE 2.  
CAUTION  
Change the FULL POWER SWITCH  
after turning the no-fuse breaker to  
"OFF".  
NOTE :  
Voltmeter always indicates the lower voltage whichever the FULL POWER  
SWITCH is set.  
Switch position  
120V  
Lower Voltage Receptacle  
Activated full rated output  
Activated half of rated output  
TABLE 2  
Higher Voltage Receptacle  
N.A  
120/240V  
Activated full rated output  
17-  
(2) CONNECTING TO DOMESTIC CIRCUITS (HOUSE WIRING)  
WARNING  
All Makita generators are a neutral grounded type.  
If a generator is to be connected to residential or commercial power  
lines, such as a stand-by power source during power outage, all connec-  
tions must be made by a licensed electrician.  
Failure in connection may result in death, personal injury, damage to  
generator, damage to appliances, damage to the building's wiring or fire.  
(a) When connecting a Makita generator to a house wiring, generator output power  
must be taken from the 240V-4P receptacle.  
(b) Install a transfer switch.  
A transfer switch must be installed to transfer the load from the commercial power  
source to the generator. This switch is necessary to prevent accidents caused  
by the recovery from power outage. Use a transfer switch of the correct capacity.  
Install transfer switch between the meter and the fuse or AC breaker box.  
CAUTION  
If the neutral wire of house wiring is grounded, be sure to ground the ground  
terminal of the generator. Otherwise an electric shock may occur to the operator.  
UTILITY HIGH LINE  
CONNECTING BOX  
MAIN POWER LINE  
TRANSFER SWITCH  
240V RECEPTACLE  
18-  
Utility high line  
House circuit breaker  
Meter box  
X W Y  
120V  
appliance  
240V  
appliance  
120V  
appliance  
X W Y  
Transfer  
switch  
Generator  
( )  
W
( )  
X
( )  
Y
( )  
G
240V  
4P- Receptacle  
(c) Operating the generator.  
Set the full power switch to 120V/ 240V side.  
Turn the house AC breaker off before starting the generator.  
Start the generator and warm it up.  
Turn the house AC breaker on.  
CAUTION  
Do not start the generator with electrical appliance (s) connected and  
with their switches on.  
Otherwise the appliance (s) may be damaged by the surge voltage at  
starting.  
19-  
(3) DC APPLICATION  
The DC terminal is used only for charging  
12 volt batteries. It provides up to 12V-  
8.3A (100W) of maximum power.  
(+)  
RED  
(+)  
(
-
)
BLACK  
(
-
)
CONNECTION OF CABLE :  
Connect positive (red) terminal on  
generator to positive (+) terminal on  
battery.  
Connect negative (black) terminal on  
generator to negative (  
battery.  
-) terminal on  
Both AC and DC output can be used  
at the same time if the total output is  
within rated output of the generator.  
SAFETY PRECAUTIONS WHILE CHARGING  
An explosive hydrogen gas is discharged through vent holes in the battery dur-  
ing the charging process. Do not allow spark or open flame around the genera-  
tor or battery during the charging process.  
Electrolyte fluid can burn eyes and clothing. Be extremely careful to avoid con-  
tact. If injured, wash the affected area immediately with large quantities of  
water and consult a doctor for treatment.  
When charging a large capacity battery or totally discharged battery, excessive  
current may force the DC breaker to turn off.  
In such cases, use a battery charger to charge a large battery with AC output.  
Battery defects may cause the DC breaker to turn off.  
Check the battery before replacing the DC breaker.  
20-  
STOPPING THE GENERATOR  
ON  
(a) Turn off the power switch of the elec-  
tric equipment and unplug the cord  
from receptacle of the generator.  
(b) Turn the no-fuse breaker to the "OFF"  
position.  
OFF  
(c) Allow the engine about 3 minutes to  
cool down at no-load before stopping.  
(d) Recoil starter model]  
Turn the engine switch to the position  
"OFF".  
Electric starter model]  
Turn the key switch to the STOP posi-  
tion.  
CLOSE  
(e) Close the fuel cock.  
CLOSE  
OIL SENSOR  
OPEN  
(a) The oil sensor detects the fall in oil  
level in the crankcase and automatic-  
cally stops the engine when the oil  
level falls below a predetermined level.  
(b) When engine has stopped automati-  
cally, switch off generator's no-fuse  
breaker, and check the oil level.  
Refill engine oil to the upper level as  
instructed on page 6 and restart the  
engine.  
OIL SENSOR  
(c) If the engine does not start by usual  
starting procedures, check the oil level.  
CAUTION  
Do not remove OIL SENSOR PROBE when refilling with oil.  
Remove oil filler cap on the opposite side of carburetor.  
21-  
IDLE CONTROL (Except G2800R)  
IDLE CONTROL automatically reduces engine speed when load is OFF, and auto-  
matically increases engine speed to rated r.p.m. when load is ON.  
IDLE CONTROL provides fuel economy and low noise operation at no-load run-  
ning.  
(1) HOW TO USE IDLE CONTROL  
Start the engine with IDLE CONTROL  
SWITCH off.  
OFF  
NOTE :  
ON  
Warm up the engine without a load for a  
few minutes.  
Turn IDLE CONTROL SWITCH on.  
(2) CHECKING THE OPERATION  
When IDLE CONTROL does not operate normally, please check following :  
Overloaded ?  
Please make it sure that the generator is not overload.  
NOTE :  
Most induction loads such as electric motors require three to five times more  
wattage than their ratings during starting.  
This starting wattage should not exceed the rated output of the generator for proper  
operation of IDLE CONTROL.  
Turn IDLE CONTROL SWITCH off when the IDLE CONTROL does not work  
normally under the rated output.  
NOTE :  
The IDLE CONTROL may not operate when the applied load is under 40W. In such  
cases turn the IDLE CONTROL SWITCH off.  
(3) STOPPING THE ENGINE  
Turn off the switch of load.  
Switch off generator's AC breaker.  
Disconnect tool or appliance.  
Turn the IDLE CONTROL SWITCH off.  
Turn the STOP SWITCH to the position "O" (OFF).  
NOTE :  
Allow the engine about 3 minutes to cool down at no-load before stopping.  
22-  
6. WATTAGE INFORMATION  
Some appliances need a "surge" of energy when starting.  
This means that the amount of electrical power needed to start the appliance may exceed  
the amount needed to maintain its use.  
Electrical appliances and tools normally come with a label indicating voltage, cycles / Hz,  
amperage (amps) and electrical power needed to run the appliance or tool.  
Check with your nearest dealer or service center with questions regarding power surge of  
certain appliances or power tools.  
Electrical loads such as incandescent lamps and hot plates require the same wattage  
to start as is needed to maintain use.  
Loads such as fluorescent lamps require 1.2 to 2 times the indicated wattage during  
start-up.  
Loads for mercury lamps require 2 to 3 times the indicated wattage during start-up.  
Electrical motors require a large starting current. Power requirements depend on the  
type of motor and its use. Once enough "surge" is attained to start the motor,  
the appliance will require only 50% to 30% of the wattage to continue running.  
Most electrical tools require 1.2 to 3 times their wattage for running under load during  
use. For example, a 5,000 watt generator can power a 1800 to 4000 watt electrical  
tool.  
Loads such as submersible pumps and air compressors require a very large force to  
start. They need 3 to 5 times the normal running wattage in order to start.  
For example, a 5,000 watt generator would only be able to drive a 1,000 to 1,700 watt  
pump.  
NOTE :  
The following wattage chart is general guide only. Refer to your specific appliance for cor-  
rect wattage.  
To determine the total wattage required to run a particular electrical appliance or tool, mul-  
tiply the voltage figure of the appliance/tool by the amperage (amps) figure of same. The  
voltage and amperage (amps) information can be found on a name plate which is normally  
attached to electrical appliances and tools.  
Applicable Wattage (W)  
G2800R  
60Hz  
2300  
1200  
800  
G4100R,G4101R G6100R,G6101R  
Applications  
60Hz  
3600  
1800  
1400  
850  
60Hz  
4800  
2400  
1600  
1100  
Incandescent lamp, Heater  
Fluorescent lamp, Electric tool  
Mercury lamp  
Pump, Compressor  
550  
23-  
VOLTAGE DROP IN ELECTRIC EXTENSION CORDS  
When a long electric extension cord is used to connect an appliance or tool to the  
generator, a certain amount of voltage drop or loss occurs in the extension cord  
which reduces the effective voltage available for the appliance or tool.  
The use of improper size or gauge of extension cords may cause unsafe or ineffi-  
cient operation of your tool or appliance. It may also damage the tool or appliance.  
Be sure that any extension cord that you use is rated to allow sufficient current flow  
to the motor or appliance. Select the required wire gauge size according to the  
chart below. Chart lists the minimum wire gauge size for the proper extension cord.  
EXTENSION CORD CHART  
Use the right extension cord. An extension cord should have a suitable wire size  
for the overall cord length and tool amperage rating. This is to prevent a serious  
voltage drop, power loss and possible motor damage. Generally, heavier gauge  
wire is required as cord length increases. Use the recommendations in this table.  
Amperage Rating of Tool  
Extension  
0.2  
2.1-3.4  
3.5-5.0  
5.1-7.0  
7.1-12.0  
12.1-16.0  
Cord Length  
Recommended Wire Size (A.W.G. Gauge No.)  
7.5m  
15m  
18  
18  
18  
18  
16  
16  
14  
12  
12  
10  
10  
18  
18  
18  
16  
14  
14  
12  
10  
10  
8
18  
18  
16  
14  
12  
12  
10  
8
18  
16  
14  
12  
10  
10  
8
16  
14  
12  
10  
8
14  
12  
10  
8
22.5m  
30m  
45m  
8
60m  
8
6
90m  
6
4
120m  
150m  
180m  
240m  
6
4
4
8
6
4
2
6
4
2
2
8
6
4
2
1
Not normally available as flexible extension cord.  
24-  
7. SPARK ARRESTER  
SPARK ARRESTER  
In a dry or wooded area, it is recommendable to use the product with a spark arrester.  
Some areas require the use of a spark arrester. Please check your local laws and  
regulations before operating your product  
.
The spark arrester must be cleaned regularly to keep it functioning as designed.  
A clogged spark arrester :  
Prevents the flow of exhaust gas  
Reduces engine output  
Increases fuel consumption  
Makes starting difficult  
If the engine has been running, the muffler and the spark arrester will be very hot.  
Allow the muffler to cool before cleaning the spark arrester.  
How to remove the spark arrester  
1. Remove the flange bolts from the muf-  
fler cover and remove the muffler  
cover.  
2. Remove the special screw from the  
spark arrester and remove the spark  
arrester from the muffler.  
SPARK  
ARRESTER  
SCREEN  
MUFFLER  
COVER  
MUFFLER  
Clean the spark arrester screen  
SPARK ARESSTER SCREEN  
Use a brush to remove carbon deposits  
from the spark arrester screen.  
Be careful to avoid damaging the screen.  
The spark arrester must be free of  
breaks and holes. Replace the spark  
arrester if it is damaged.  
Install the spark arrester, and muffler  
protector in the reverse order of  
disassembly.  
25-  
8. MAINTENANCE SCHEDULE  
MAINTENANCE, REPLACEMENT OR REPAIR OF THE EMISSION CONTROL DEVICES  
AND SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTAB-  
LISHMENT OR INDIVIDUAL.  
DAILY INSPECTION  
Before running the generator, check the following service items:  
Enough gasoline  
Excessive vibration,noise  
Safe surroundings  
Clean air cleaner element  
Leakage of gasoline and engine oil  
Enough clean engine oil  
Loose or broken bolts and nuts  
PERIODIC MAINTENANCE  
Periodic maintenance is vital to safe and efficient operation of your generator.  
Check the table below for periodic maintenance intervals.  
IT IS ALSO NECESSARY FOR THE USER OF THIS GENERATOR TO  
CONDUCT THE MAINTENANCE AND ADJUSTMENTS ON THE EMISSION-  
RELATED PARTS LISTED BELOW TO KEEP THE EMISSION CONTROL  
SYSTEM EFFECTIVE.  
The emission control system consists of the following parts:  
(1) Carburetor and internal  
parts  
(4) Air cleaner elements  
(5) Spark plug  
(8) Exhaust manifold, if  
applicable  
(2) Cold start enrichment  
system, if applicable  
(9) Hoses, belts, connec-  
tors, and assemblies  
(6) Magneto or electronic  
ignition system  
(3) Intake manifold, if  
applicable  
(7) Spark advance/retard  
system, if applicable  
The maintenance schedule indicated in the following table is based on the normal  
engine operation. Should the engine be operated in extremely dusty condition or in  
heavier loading condition, the maintenance intervals must be shortened depending  
on the contamination of oil, clogging of filter elements, wear of parts, and so on.  
26-  
Periodic Maintenance Schedule table  
Every  
8 hours  
(Daily)  
Every  
50 hours 200 hours  
(Weekly) (Monthly) hours  
Every  
Every  
500  
Every  
1000  
hours  
Every  
20 hours  
Maintenance Items  
CLEAN GENERATOR AND  
CHECK BOLT AND NUTS  
(Daily)  
CHECK AND REFILL ENGINE  
OIL  
(Refill daily up to upper level)  
(Initial)  
CHANGE ENGINE OIL (*Note1)  
CLEAN SPARK PLUG  
(Every 100 hours)  
CLEAN AIR CLEANER  
REPLACE AIR CLEANER  
ELEMENT  
CLEAN FUEL STRAINER  
CLEAN AND ADJUST SPARK  
PLUG AND ELECTRODES  
REPLACE SPARK PLUG  
SPARK ARRESTER  
(Every 100 hours)  
REMOVE CARBON FROM  
CYLINDER HEAD (*Note 2)  
CHECK AND ADJUST VALVE  
CLEARANCE, (*Note 2)  
CLEAN AND ADJUST  
CARBURETOR (*Note 2)  
(Yearly)  
REPLACE FUEL LINES  
OVERHAUL ENGINE (*Note 2)  
*NOTE: 1. Initial oil change should be performed after first twenty (20) hours of  
operation. Thereafter change oil every hundred (100) hours.  
Before changing oil, check for a suitable way to dispose of old oil.  
Do not pour it down into sewage drains, onto garden soil or into open  
streams. Your local zoning or environmental regulations will give you  
more detailed instructions on proper disposal.  
*NOTE: 2. As to the procedures for these items, please refer to the SERVICE  
MANUAL or consult your nearest Makita service dealer.  
27-  
9. "HOW-TO" MAINTENANCE  
ENGINE OIL CHANGE  
Change engine oil every 100 hours.  
(For new engine, change oil after 20  
hours.)  
(a) Drain oil by removing the drain plug  
and the oil filler cap while the engine  
is warm.  
(b) Reinstall the drain plug and fill the  
engine with oil until it reaches the  
OIL DRAIN PLUG  
upper level on the oil filler cap.  
Use fresh and high quality lubricating oil to the specified level as directed on  
page 6. If contaminated or deteriorated oil is used or the quantity of the engine  
oil is not sufficient, the engine damage will result and its life will be greatly  
shortened.  
CLEANING AIR CLEANER  
(Model G2800R)  
Maintaining an air cleaner in proper condi-  
tion is very important.  
Dirt induced through improperly installed,  
improperly serviced or inadequate ele-  
ments damages and wears out engines.  
Always keep the air cleaner element  
HOOK  
clean.  
(a) Unhook the cover and remove the  
cleaner element.  
(b) Inner element : Wash the element with  
COVER  
kerosene, then soak it in mixed oil  
(Kerosene (3 parts) : Engine oil  
(1 part)). Drain the mixed oil.  
(c) Outer element : Wash the element with  
INNER  
ELEMENT  
kerosene, then dip it into the mixed oil  
(Kerosene (3 parts) : Engine oil (1  
OUTER  
ELEMENT  
part)). Squeeze out the mixed oil. (Do  
not twist.)  
28-  
(Model G4100R, G4101R, G6100R, G6101R)  
CAUTION  
COVER  
Do not wash elements with  
kerosene, gasoline or oil.  
A dirty air cleaner element will cause  
starting difficulty, power loss, engine mal-  
functions, and shorten engine life  
extremely. Always keep the air cleaner  
element clean.  
INNER  
ELEMENT  
OUTER  
ELEMENT  
1. Urethane Foam Element  
Wash and clean the urethane foam with detergent. After cleaning, dry it.  
Clean the urethane foam element every 50 hours.  
2. Paper element  
Clean by tapping gently to remove dirt and blow off dust.  
Never use oil. Clean the paper element every 50 hours of operation, and  
replace element set every 200 hours.  
Clean and replace air cleaner elements more often when operating in dusty  
environments.  
CLEANING AND ADJUSTING  
SPARK PLUG  
(a) If the plug is contaminated with car-  
bon, remove it using a plug cleaner or  
wire brush.  
(b) Adjust the electrode gap.  
ELECTRODE GAP  
Electrode gap  
Model  
Spark plug Electrode gap  
G2800R  
G4100R  
G4101R  
0.02 to 0.03 in.  
NGK BR6HS  
(0.6 to 0.7 mm)  
0.03 in.  
NGK BR6ES  
G6100R  
G6101R  
(0.7 to 0.8 mm)  
29-  
CLEANING FUEL STRAINER  
Dirt and water in the fuel are removed by  
the fuel strainer.  
(a) Remove the strainer cup and throw  
away water and dirt.  
(b) Clean the screen and strainer cup  
with gasoline.  
(c) Tightly fasten the cup to main body,  
making sure to avoid fuel leak.  
FUEL HOSE REPLACEMENT  
WARNING  
Take extreme caution when replacing  
fuel hose ; gasoline is flammable.  
Replace the fuel hose every 1,000 hours  
or every year.  
If fuel hose leak is found, replace the fuel  
hose immediately.  
30-  
10. PREPARATION FOR STORAGE  
The following procedures should be followed prior to storage of your generator for  
periods of 6 months or longer.  
Drain fuel from fuel tank carefully by disconnecting the fuel line.  
Gasoline left in the fuel tank will eventually deteriorate making engine-starting  
difficult.  
Remove the carburetor float chamber and also drain the carburetor.  
Change engine oil.  
Check for loose bolts and screws, tighten them if necessary.  
Clean generator thoroughly with oiled cloth. Spray with preservative if avail-  
able. NEVER USE WATER TO CLEAN GENERATOR !  
Pull starter handle until resistance is felt, leaving handle in that position.  
Store generator in a well ventilated, low humidity area.  
31-  
11. TROUBLESHOOTING  
When generator engine fails to start after several attempts, or if no electricity is  
available at the output socket, check the following chart. If your generator still fails  
to start or generate electricity, contact your nearest Makita factory or authorized  
service center for further information or corrective procedures.  
When Engine Fails to Start :  
Set the choke lever to "CLOSE" posi-  
tion.  
Check if choke lever is in its proper  
position.  
Check if fuel cock is open.  
Check fuel level.  
If closed, open fuel cock.  
If empty, refill fuel tank making sure not  
to overfill.  
Check if engine switch is in OFF.  
Turn engine switch to ON.  
Check to make sure generator is not  
connected to an appliance.  
If connected, turn off the power switch  
on the connected appliance and unplug.  
Check spark plug for loose spark plug  
cap.  
If loose, push spark plug cap back into  
place.  
Check spark plug for contamination.  
Remove spark plug and clean electrode.  
When No Electricity Is Generated at Receptacle :  
After making sure that the total wattage  
of the electrical appliance is within per-  
missible limits and there are no defects  
in the appliance, turn the no-fuse break-  
er to the "ON" position.  
Check to make sure no-fuse breaker is  
in the "ON" position.  
If breakers continue to actuate, consult  
your nearest servicing dealer.  
Check AC and DC terminals for loose  
connection.  
Secure connection if necessary.  
Turn off switch on the appliance, and  
disconnect cable from receptacle.  
Reconnect after generator has been  
started properly.  
Check to see if engine starting was  
attempted with appliances already con-  
nected to generator.  
32-  
12. WIRING DIAGRAM  
G2800R  
S p a r k p l u g  
I g n i t i o n c o i l  
0 . 7 5 G r n / Y  
2 . 0 G r n  
C o n d e n s e r  
A C W i n d i n g 1  
A C W i n d i n g 2  
D C W i n d i n g  
F i e l d W i n d i n g  
D i o d e  
S u r g e a b s o r b e r  
33-  
G4100R  
S p a r k p l u g  
I g n i t i o n c o i l  
C h a r g e c o i l  
0 . 7 5 L B l u  
0 . 7 5 B l k  
0 . 7 5 G r n / Y  
0 . 7 5 W  
0 . 7 5 W  
E n g i n s w i t c h  
0 . 7 5 B l k  
1 2 0 / 2 4 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
)
1 2 0 V  
(
)
)
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
)
r e c e p t a c l e  
A C o u t p u t  
C o n d e n s e r  
C o n d e n s e r  
A C W i n d i n g 1  
F i e l d W i n d i n g  
A C W i n d i n g 2  
D C W i n d i n g  
D i o d e  
S a r g e a b s o r b e r  
34-  
G4101R  
S p a r k p l u g  
I g n i t i o n c o i l  
C h a r g e c o i l  
0 . 7 5 L B l u  
0 . 7 5 B l k  
0 . 7 5 G r n / Y  
0 . 7 5 W  
0 . 7 5 W  
0 . 7 5 L B l u  
0 . 7 5 B l k  
( 1 2 0 / 2 4 0 V )  
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
)
)
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
)
r e c e p t a c l e  
A C o u t p u t  
C o n d e n s e r  
C o n d e n s e r  
A C W i n d i n g 1  
F i e l d W i n d i n g  
A C W i n d i n g 2  
D C W i n d i n g  
D i o d e  
S a r g e a b s o r b e r  
35-  
G6100R  
S p a r k p l u g  
I g n i t i o n c o i l  
0 . 7 5 B l k  
C h a r g e c o i l  
0 . 7 5 G r n / W  
0 . 7 5 B l k / W  
0 . 7 5 Y  
0 . 7 5 W  
0 . 7 5 W  
0 . 7 5 B l k  
0 . 7 5 B l k  
2 . 0 G r n  
1 2 0 / 2 4 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
)
1 2 0 V  
(
)
r e c e p t a c l e  
A C o u t p u t  
b r e a k e r  
N o - f u s e  
1 2 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
1 2 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
)
)
C o n d e n s e r  
C o n d e n s e r  
A C W i n d i n g 1  
F i e l d W i n d i n g  
A C W i n d i n g 2  
D C W i n d i n g  
D i o d e  
S a r g e a b s o r b e r  
36-  
G6101R  
S p a r k p l u g  
I g n i t i o n c o i l  
0 . 7 5 B l k  
C h a r g e c o i l  
0 . 7 5 G r n / W  
0 . 7 5 B l k / W  
0 . 7 5 Y  
0 . 7 5 W  
0 . 7 5 W  
0 . 7 5 B l k  
Y /  
Y /  
0 . 7 5 G r n  
0 . 7 5 G r n  
1 . 2 5 B l k  
2 . 0 G r n  
1 2 0 / 2 4 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
)
1 2 0 V  
(
)
)
r e c e p t a c l e  
A C o u t p u t  
b r e a k e r  
N o - f u s e  
1 2 0 V  
(
)
1 2 0 V  
(
r e c e p t a c l e  
A C o u t p u t  
r e c e p t a c l e  
A C o u t p u t  
C o n d e n s e r  
C o n d e n s e r  
A C W i n d i n g 1  
F i e l d W i n d i n g  
A C W i n d i n g 2  
D C W i n d i n g  
D i o d e  
S a r g e a b s o r b e r  
37-  
13. OPTIONAL PARTS  
"HOW TO" INSTALL BATTERY  
38-  

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