Description:
Applications:
NOTE:
Part Number:
Synchronizer
Suzuki Marine Boats
990C0-86B40/86W41
Installation Time:
HRS
1
Weight:
Mounts in standard 3 3/8" hole.
1 lbs
Ref.
Part Number
Description
QTY
1
Contents
1. 990C0-86B40/86W41 Synchronizer
BC0146
2.
3.
MountingBracket
1
MountingHardware
1
1
1
3
2
If so equipped
YELLOW/
RED
YELLOW
BLACK
GRAY
Tools Description
Ref.
1.
Tools
Required
3/8" Nut Driver
2.
Suzuki Terminal Kit
09900-28701
Please read this manual and follow its instructions
carefully. To emphasize special information, the
Indicates potential hazard that could
result in death or injury.
Important
symbol
and the words WARNING, CAUTION
and NOTE have special meanings. Pay special
attention to the messages highlighted by these sig-
nal words:
NOTE: Indicates special information to make
maintenance easier or instructions clear.
Indicates potential hazard that could
result in vehicle damage.
NOTE
IS0207B ECR5609 8/2005
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Harness
Diagram
HN0397 revA ecr 4452 03/2004
Yellow/Red
Yellow/Red
Sync Port
Green/Orange
Green/Orange
Yellow
Green/Orange
Lights
Sync Stbd
Black
Yellow
Black
Gray
Black
Ground
+14V
Gray
Gray
Heat shrink tubing
HN0418 rev A ecr 5609 8/05
Yellow
Yellow
Yellow
Trouble
Inspection
Diagnosis
Action
Trouble
Shooting
Gauge Sticks
A. Backclamp may
be too tight.
1. Slightly loosen nuts
holding backclamp.
Check operation.
1. If gauge works and is
not loose in panel,
continue using gauge.
2. If gauge continues to
stick, replace gauge.
Gauge
Inoperative
A.
1. Check wires to
check they were
installed on the
1.
Is power applied to
gauge?
Switch the
instrument power
supply switch on and
off. As power is
supplied the pointer
should jump slightly.
correct terminals and
power is actually
supplied to gauge.
2 If pointer jumps
(indicating power
supplied), check for
signal from engine. If
signal exists, replace
tachometer.
Trouble shooting continued next page.
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Trouble
Inspection
Diagnosis
Action
Trouble
Shooting
Gauge
is Pegged
A.
1. Check calibration.
(See the calibration
section at end of this
manual.)
1.
The synchronizer
reads hi or low.
The synchronizer is in
the wrong switch
position.
2.
1.
The synchronizer is
not calibrated.
Gauge
is Erratic
A.
B.
1. Fix connection.
Inspect the connection
between the wire and
the ring connector.
Check for insulation
that may have been
pushed into connection.
1. Relocate offensive
appliance. Please
refer to installation
instructions.
1.
Check for excessive
electrical noise caused
by an electrical
appliance set to close
to the gauge. i.e. a
magnetic compass, a
radio transmission.
Check wires by
connecting one wire
at a time to the
synchronizer directly
from the battery or
the signal source on
the engine.
Start the engines and (after an appropriate warm-up period and with shifts in neutral) increase their
speeds to the boat's normal cruising RPM. (Both tachometers must be properly calibrated.) Set the
coarse adjustment switch to the proper position described on it's label. Remove the stop-plug (at the
8-o'clock position on the rear of the case for most) and insert a 5/16" allen wrench into the "fine
adjustment" trumpet, rotating it CW or CCW as necessary to center the synchronizer.
Calibration
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