Illustrated Parts Manual
Model Series 26J Mini Rider
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Form No. 769-07825
(January 20, 2012)
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Notes
3
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Frame & Fender
25
27
12
11
9
1
15
26
12
7
8
10
15
17
12
15
18
24
15
22
2
13
4
15
15
5
14
21
16
15
23
3
4
3
15
20
15
6
19
28
15
4
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Frame & Fender
Ref.
No.
Part No.
Description
1
2
3
4
5
6
7
8
710-0924
Machine Screw, 1/4-20, 0.750
Hex Screw, 1/4-15, 1.000
Hex Head Screw, 5/16-18, .75
Tap Screw, 5/16-18, .750
Flange Locknut, 5/16-18
Speed Nut
710-1241
710-3008
710-04484
712-04063
726-0221
712-04092
731-08633
731-08883
731-08635
731-08882
931-08529
731-08827
631-04655
731-09128
731-08620
731-09129
738-04184A
749-04932
783-07208
710-1652
U-type Speed Nut, 1/4-20
Column Cover
Column Cover (International)
Steering Column Cap
9
Steering Column Cap (International)
Fender, (MTD Eng. 4P90JU)
Fender, (B&S Eng.)
10
Fender, (MTD Eng. 4P90JUA)
Fender (International)
Rear Cover
11
Rear Cover (International)
Shoulder Screw, .368 X.113: 1/4-20
Rear Cover Support Tube
Hitch Plate
12
13
14
15
16
Tap Screw, 1/4-20, .625
Running Board
731-08528
731-08910
731-08753
936-0463
Running Board, (International)
Running Board Plug
17
18
19
20
21
22
23
24
Flat Washer, .250 x .630 x .052
Frame Assembly
683-04751
783-07125
783-07162
783-07168
783-07215
783-07302
783-07386A
783-07302
726-3046
783-07388A
783-07402
683-04767
Deck Lift Index Bracket
Seat Pan
Seat Pivot Bracket
Battery Tray
Top Rear Drive Cover
Top Rear Drive Cover, (MTD Eng. 4P90JUA)
Top Rear Drive Cover (International)
Clip, .250 Dia., (MTD Eng. 4P90JUA)
Shield, (MTD Eng. 4P90JUA)
Screen Cover, (MTD Eng. 4P90JUA)
Bumper Assembly
25
26
27
28
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
5
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Drive System
32
37
39
17
13
33
12
26
37
7
38
35
3
34
22
42
8
5
36
48
16
43
46
28
27
25
45
47
44
9
23
24
10
20
41
18
29
49
21
15
1
19
2
14
31
11
6
40
6
52
4
50
30
14
53
51
6
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Drive System
Ref.
No.
Ref.
No.
Part No.
Description
Part No.
Description
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
738-0930
747-05593
747-05617A
950-04099
750-04456
750 -3119
Shoulder Spacer, .560x.165, 5/16-18
Shift Rod
1
918-05056
647-04262
683-04768
736-0242
710-04484
710-05378
710-05415A
710-0599
710-0623
710-0757
710-0809
710-1007
Transmission Assembly
Shift Handle Assembly
2
Deck Belt Keeper, 30"
3
Drive Assembly Idler
Stepped Spacer, .265 ID X .750
Spacer, .260 X .372 X 1.420
Spacer, .406 ID X 1.00 OD X .38
V-Belt, 5L:35.25
4
Beveled Washer, .340 x .872 x .060
Tap Screw, 5/16-18, .750
Tap Screw, 5/16-18, 2.50
Hex Head Scew, 3/8-16, 1.62
Tap Scew, 1/4-20, 0.500
5
6
954-0241A
954-04331
756-04224
756-04325
756-04464
756-04479
783-07207
783-07248
956-04015A
783-07243
710-0627
710-0778
7
V-Belt, 5L:35.28
8
Flat Idler Pulley, 2.75 OD
V-Type Idler Pulley, 3.06
V-Type Pulley, 6.56
9
Tap Screw, 3/8-16, 0.750
Hex Head Screw, 7/16-20, 1.50
Tap Screw, 1/4-20, 1.250
SEMS Tap Screw, 3/8-16, 1.500
Tap Screw, 1/4-20, 1.625
Tap Screw, 1/4-20 x .625
Adjustable Ferrule, 1/4-20 X 1.00
Flange Lock Nut, 3/8-16
Flange Nut, 9/16-18
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Engine Pulley, 4.46 / 3.39
Front Support Shift Bracket
Rear Idler Arm Bracket
Variable Speed Pulley Assembly
Variable Bracket
710-1325
710-1652
711- 0736
712-04065
712-0700
914-0209
Hex Head Lock Screw, 5/16-24:.750
Tap Screw, 1/4-20:1.500
Bearing Cup
Internal Cotter Pin, .125 Dia.
Bow-Tie Cotter Pin
714-04040
718-04407
720-04028
732-0459C
732-04934
936-0171
736-0322
736-3010
738-0372B
718-04261
736-0362
941-0600
734-0591
734-04641
634-04319
934-0255
710-0627
Pulley Hub, 5/8 Spline
Flat Washer, .330x1.250x.060
Ball Bearing, 17 X 40 X 12
Complete Wheel Assembly
Tire, 16 x 6.5 x 8 Sq. Shldr.
Rim Assembly, 8.0 x 5.38
Air Valve
Shift Knob
Extension Spring, .94 Dia. X 6.74 Lg.
Extension Spring, .97 OD X 6.18
Split Lock Washer, 7/16
Flat Washer, .450X1.250X.164
Flat Washer, .407X.812X.135
Shoulder Spacer, 1.00 X .38 X .38
Hex Head Screw, 5/16-24, 7.50
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
7
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Seat, Fuel Tank & Electrical
35
51
36
7
37
37
48
35
41
50
49
42
40
50
38
38
49
8
2
5
2
39
43
3
44
47
4
6
27
46
22
1
29
23
45
26
34
17
16
32
34
33
22
19
18
22
33
25
11
20
15
9
28
30
12
10
13
14
24
24
31
31
21
31
24
8
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Seat, Fuel Tank & Electrical
Ref.
No.
Ref.
No.
Part No.
Description
Part No.
Description
27
28
29
30
31
32
33
34
35
925-05013
725-1643
925-1745A
926-0320
738-04237A
783-07384
738-1132
Seat Switch
1
2
3
4
5
6
7
710-0607
Tap Screw, 5/16-18, 0.500
Flange Lock Nut, 5/16-18
Knob, 3/8-16, .875
Switch Spring
712-04063
720-04009A
732-04905
735-0271A
938-0140
Key
Insulator Plate
Seat Spring
Shoulder Screw, #10-32, .500
Battery Hold-Down Bracket
Screw, Shoulder, .250 x .150
Nut, Sems, 1/4-20
Bumper, .62 DIA X .3
Shldr Spacer, .435 X .178-5/16 X .56
Seat
757-04083A
757-04099
783-07213
683-04754
712-04065
720-04049A
725-0157
712-0271
Seat, (International)
Seat Pivot Bracket
657-00000
657-00001
710-0560
710-3178
Seat (TB)
8
Seat (International)
Carriage Bolt, 3/8-16 x 1.75
Carriage Bolt, 3/8-16 x .75
Nut, Jam, 3/8-16
9
PTO Handle Assembly
Flange Lock Nut, 3/8-16
Handle Grip, 3/8
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
10
11
12
13
14
15
16
17
18
912-3020
Cable Tie, 3/16 X .05 X 7.4
Extension Spring, .50 OD X 4.646 LG
Shoulder Bolt, .500 X .270:3/8-16
PTO Cable
720-04186
731-08661
932-04010
783-07210
951-10589
951-10590
951-10610
Wing Knob, 3/8-16
Seat Pan Support
732-04956
738-04554
946-04802
735-04081
751-12118
951-04366
951-04386
951-04385
951-12179A
951-12426
925-1707D
710-0227
Compression Spring, .845 OD x 1.00
Seat Bracket
Rubber Grommet
5 GallonCarbon Canister
Vent Filter Canister
Canister Adapter Bracket
Rollover Valve
Fuel Tank, 1-3 Gal.
Fuel Tank, 1.3 Gal., Carb
Fuel Tank, 1.3 Gal., (International)
Fuel Cap
751-10749-30
751-10750-48
683-04735
732-04085
732-04940
764-04140
764-05003
925-05359
725-05436
Fuel Hose, White
Fuel Hose, Yellow
19
Seat Frame Assembly
Fuel Cap, Carb
Extension Spring, .48 OD x 5.00 LG
Extension Spring, 7.91 LG
Seat Cover
20
21
22
23
24
25
26
Battery, 155 CCA
Screw, #8
710-1652
Tap Screw, 1/4-20, .625
Flange Lock Nut, 1/4-20
Interlock Switch
Seat Cover (International)
Wiring Harness (Not Shown)
Wiring Harness, B&S (Not Shown)
712-04064
725-04363
725-04439
925-04659
—
—
Solienoid, 12v
Three-Way Key Switch
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
9
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Front End Steering
28
7
18
27
3
34
17
15
33
4
10
6
16
5
19
31
14
21
32
21
30
14
20
11
12
8
21
21
13
8
26
25
2
12
1
29
10
12
22
23
24
30
9
29
31
32
10
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Front End Steering
Ref.
No.
Part No.
Description
1
683-04726
683-04727
683-04761
683-04762
710-05046
710-05386
710-0643
Front Axle Assembly, RH
Front Axle Assembly, LH
Upper Tube Assembly
Lower Tube Assembly
Allen Wrench, 3/16
2
3
4
5
6
Screw, 1/4-20 X 1.25
Hex Head Screw, 5/16-18:1.00
Carriage Screw, 1/4-20, .75
Ferrule, 5/16-24 X .312 Dia.
Flange Lock Nut, 1/4-20
Flange Lock Nut, 3/8-16
Bow-Tie Cotter Pin, 72
Steering Pinion Gear
Push Cap, 3/4
7
8
710-0703
9
711-04448
712-04064
712-04065
714-04040
717-1554
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
726-0341
726-04127
731-08690
731-08691
736-0242
Snap Butt
Lower Steering Collar
Upper Steering Collar
Bevel Washer, .340X.872X.060
Steering Shaft, .625 OD X 18.03
Hex Flange Bearing, 5/8
Flange Bearing, .760 X .941 X 1.0
Steering Rod, LH
738-04537
741-04542
741-0660A
747-05514
747-05585
747-05686
783-06988
783-07239
631-04028
631-04008A
731-04040
731-04681
731-04039
731-04532B
634-04726
736-04228A
714-0162
Steering Rod, RH
Front Tie Rod
Steering Rack Plate
Lower Steering Bearing
Steering Wheel, Std. Grip
Steering Wheel, Soft Grip
Sprig Cap
28
Cap, Troy-Bilt
No Sprig Cap
Cap, Cub
29
30
31
32
33
34
Complete Wheel Assembly
Washer, .781 x 1.59
Cotter Pin, 5/32 x 1.25
Hub Cap
931-0484A
683-04763
723-04095
Tube Assembly, Non-Telescoping
Steering Sleeve
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
11
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Pedal Controls
27
15
28
8
22
24
5
19
20
10
13
18
2
9
17
21
1
14
8
11
12
16
6
23
3
24
10
4
26
7
25
25
Ref.
No.
Ref.
No.
Part No.
Description
Part No.
Description
15
16
17
18
19
20
21
22
23
24
25
26
27
28
732-0716D
735-04279
936-0264
736-3072
Extension Spring, .59 OD X 4.00 LG
Foot Pad, 2.5" LG.
1
683-04699
910-0224
710-0376
710-04484
710-3008
911- 04075A
711- 0736
Brake Pedal Assembly
Screw, #10-16:0.500
2
Flat Washer, .330x.630x.064
Flat Washer, .380X.930X.110
Shoulder Screw, .368 X.113, 1/4-20
Steering Col. Bearing, .880 ID X 1.36
Variable Speed Control Rod
Brake Rod
3
Hex Head Scerw, 5/16-18:1.00
Tap Screw, 5/16-18:.750
Hex Head Screw, 5/16-18:.75
Ferrule 3/8-24 X .375 Dia.
Adjustable Ferrule, 1/4-20 X 1.00
Flange Lock Nut, 5/16-18
Cotter Pin, 3/32X1.0
4
738-04184A
741-0356A
747-05506
747-05508
747-05616
748-0234
5
6
7
8
712-04063
914 - 0111
Speed Selector Control Rod
Shoulder Spacer
9
10
11
12
13
14
714-04040
726-0214
731-08656
731-08743
732-04937
Bow-Tie Cotter Pin, 72
Push Cap, 5/8
783-05940
783-07050
783-07287
717-0772B
Pedal Strap Support Bracket, 5/8
Speed Latch Bracket
Speed Control Cover
Speed Lever, 6-SPEED
Shift Spring
Brake Cam Bracket
Brake lever Bracket
NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment.
12
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Deck Lift
3
11
3
1
14
15
12
13
19
6
18
15
5
11
12
4
15
17
2
12
16
20
8
10
9
7
Ref.
No.
Ref.
No.
Part No.
Description
Part No.
Description
11
714-04040
714-04043
720 - 0311
Bow-Tie Cotter Pin, 72
Bow-Tie Cotter Pin, 91
Grip Handle, 1/2
1
2
3
4
5
6
7
8
9
10
683-04706
683-04757
710-04484
710-0514
710-0642
710-0809
710-1652
Lift Assembly Shaft
12
13
14
15
16
17
18
19
20
Front Hanger Bracket Assembly
Tap Screw, 5/16-18, .750
Hex Head Screw, 3/8-16, 1.00
Tap Screw, 1/4-20, 0.750
Tap Screw, 1/4-20, 1.250
Tap Screw, 1/4-20 X .625
Ferrule, .50 X .50
732-04692
936-0300
938-0347
747- 05511
747-05576
750-0566A
783-07129
Extension Spring, .85 OD X 5.915 LG
Flat Washer, .406 X .875 X .059
Shoulder Spacer, .625 ID X .169
Lift Link Rod
Deck Lift Rod
711- 05690
712-04065
712-04243
Spacer, .260 x .375 x 1.030 LG
Front Deck Mounting Bracket
Flange Lock Nut, 3/8-16
Flex Lock Nut, 1/2-13
NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment.
13
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Engine Accessories MTD P90
4
7
8
1
6
2
2
2
5
3
Ref.
No.
Part No.
Description
1
2
3
4
5
6
7
8
710-04483
710-04683
710-05446
726-0205
Tap Screw, 1/4-20, 0.500
Tap Screw, 3/8-16, 1.000
Tap Screw, 3/8-16, 2.250
Hose Clamp, .490 DIA.
Oil Drain Sleeve
731-1682A
946-04829
751-10349
BS-298090S
Throttle/Choke Cable 31 Lg.
Low Permeation Fuel Line, 1/4
Fuel Filter, 1/4", 298090
NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment.
14
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Engine Accessories B&S Mod 21
6
1
8
9
7
10
5
11
4
2
2
2
3
Ref.
No.
Part No.
Description
1
710-04483
710-04683
710-05446
710-1652
Tap Screw, 1/4-20, 0.500
Tap Screw, 3/8-16, 1.000
Tap Screw, 3/8-16, 2.250
Tap Screw, 1/4-20, 0.625
Sems Nut, 1/4-20
2
3
4
5
712-0271
6
726-0205
946-04829
751-10349
951-10517A
751-3141-14
783-07382
Hose Clamp, .490 DIA.
Throttle/Choke Cable 31 Lg.
Low Permeation Fuel Line, 1/4
Oil Drain
7
8
9
10
11
Oil Drain, Extension Hose
Muffler Cover
NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment.
15
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30” Deck
13
1
39
25
10
33
16
40
43
42
22
43
18
36
19
4
20
29
30
11
24
8
42
41
27
9
35
1
11
23
34
17
45
46
10
47
7
28
3
2
21
44
32
31
38
38
10
10
14
15
6
10
5
6
37
4
26
38
12
16
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30” Deck
Ref. Part Number
Description
Ref. Part Number
Description
26
27
28
29
30
31
32
942-04385
750-04456
750-0566A
954-04318
756-04224
783-07004
783-07265
783-07146
783-07184
783-07204
783-07304
783-07306
931-04633
931-04645
738-04519
712-0417A
936-0351
Cutting Blade, 30.00" 3-IN-1
Spacer, .260 X .372 X 1.420 LG
Spacer, .260 x .375 x 1.030 LG
V-Type Belt, 5L, 45.15 LG
Flat Idler Pulley, 2.75 OD
Front Deck Bracket
1
918-04822A
683-04734
683-04782
710-04484
710-04998
710-0514
Spindle Pulley Assembly, 6.3 DIA
PTO Brake Assembly Bracket
Rear Deck Assembly Bracket
Tap Screw, 5/16-18, .750
Carriage Screw, 5/16-18, 1.00
Hex Head Screw, 3/8-16, 1.00
Tap Screw, 1/4-20, 1.500
Tap Screw, 1/4-20, 1.750
Tap Screw, 3/8-16, 1.250
Tap Screw, 1/4-20 X .625
Flange Lock Nut, 3/8-16
Flange Nut, 5/8-18
2
3
4
5
6
Deck, 30" w/out Nozzle
Deck, 30” w/ Nozzle
7
710-0778
710-1026
8
33
34
35
36
37
RR Deck Bracket, LH
9
710-1315
Release Brake Bracket
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
710-1652
Lower Floating Idler Bracket
Upper Floating Idler Bracket
Chute Deflector
712-04065
712-0417A
714-04040
720-04122
726-0201
956-1227
Bow-Tie Cotter Pin, 72
Chute Deflector (International)
Shoulder Screw, 1/4-15 x .750
Flange Nut, 5/8-18
Wing Knob, 5/16-18
38
39
40
41
42
43
44
45
46
47
Speed Nut, .3125 ID
Deck Pulley, 6.3 DIA
Shim Washer, .760X1.500X.030
Spindle Shaft, 6.11 LG.
732-04948A
732-04967
936-0289
736-0362
736-0518
783-07342
938-0347
738-04162A
946-04802
Ext. Spring, .708 X 7.357 X .094
Ext. Spring, .565 OD X 5.00 LG
Shoulder Bushing, .320 ID X .135
Flat Washer, .330x1.250x.060
Thrust Washer, .445X.1.920X.060
Deck Belt Cover
738-1186A
941-0919A
750-04936
931-04632
921-04041
731-07487
738-04278
Ball Bearing, .787ID X 1.85 ODX.551
Spacer, .792 X 1.060 X 1.860 LG
Mulch Plug, (International)
Water Nozzle Adapter
Deck Wash Nozzle
Shoulder Spacer, .625 ID X .169
Shoulder Spacer, .8840 X .190
PTO Cable
Shoulder Screw, 1/4-20 x 0.500
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
17
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Wiring Harness Schematic - 925-05359
18
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Wiring Harness Schematic - 725-05436
19
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4P90JU Air Intake
120
122
121
121
126
124
127
128
127
130
129
Ref. Part Number
Description
120 951-12255
Air Filter Cover Assembly
Air Filter Lock Nut
Air Filter Cover
Sponge Filter
121
712-04291
122 951-12255
124 951-12256
126 951-12260
127 712-04212
128 951-12328
129 951-12257
Air Filter Assembly
Nut M6
Rubber Cap
Manifold
130
951-12258
Manifold Gasket
20
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4P90JU Engine Shroud
192
192
2
3
1
2
3
4
2
4
3
4
5
6
6
7
Ref.
Part Number
Description
1
751-12205
712-04290
750-05320
710-05304
951-11622
710-05305
951-12206
710-05303
Debris Shield
Nut
2
3
Engine Shroud Spacer
4
Starter / Shroud Stud M6×100
Flexible Clamp
5
6
Hook Bolt
7
Air Shield
192
Self-Tapping Bolt 5.5×25
21
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4P90JU Crankcase
48
49
50
52
51
197 - Gasket Kit - Complete
198 - Gasket Kit - External
199 - Complete Engine
53
47
189
72
183
185
72
73
57
70
74
186
184
55
183
56
59
54
58
62
63
178
60
68
64
66
65
69
67
22
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4P90JU Crankcase
Ref.
Ref.
Part Number
Description
Part Number
Description
69
70
72
73
750-05530
951-12235
951-12236
751-12200A
Component Bracket Spacer
47
48
49
50
51
52
53
54
55
56
57
58
59
60
62
63
64
65
66
67
68
951-11499
710-04916
751-12770
951-12226
951-12685
951-12227
951-12686
951-12228
951-12229
736-04558
714-04074
951-11574
951-12230
951-12231
951-12232
710-04908
712-04212
951-12233
710-04979
710-05310
951-12234
Upper Crankshaft Seal
Bolt M6×14
Breather Hose Assembly
Breather Hose Clamp
Short Block Assembly
(Incl.37,47-53,55-58,73-77,84,
86-89,91-93,98-104,112,113,
115-119,137,138,144,160,
172,173,175-178,183-186)
Crankcase Cover Gasket
Piston Ring Set
Breather Cover Plate
Breather Gasket
Umbrella Valve
Mesh Screen
Umbrella Valve Seat
Choke Linkage
74
951-12237
951-12275
951-11953
Governor Arm Shaft
Governor Washer
Governor Cotter Pin
Governor Seal
178
183
Piston Pin Snap Ring
Piston
184 951-12276
185 951-11954
186 951-12277
Piston Pin
Throttle Linkage
Throttle Linkage Spring
Governor Arm
Connecting Rod Assembly
Connecting Rod Bolt
Gasket Kit - Complete
(Incl.47,50,58,74,113,118,
130,136-138,144,160,166)
Gasket Kit - External
(Incl.113,130,136-138,144,160)
Complete Engine
189
197
710-05319
951-12204
Governor Arm Bolt
Governor Arm Nut M6
Governor Spring
Bolt M6×18
198
199
951-12201
Bolt M6×38
952Z4P90JU
Throttle Control Bracket
23
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4P90JU Starter Assembly
9
8
10
11
12
11
12
11
12
24
25
23
13
24
25
37
14
36
34
35
33
15
16
17
37
35
36
34
31
18
28
29
19
21
30
30
Ref. Part Number
Description
Ref. Part Number
Description
23
24
25
28
29
30
31
33
34
35
36
37
951-12528
951-12217
736-04554
951-12529
951-12219
710-05308
951-12324
736-04555
736-04556
736-04477
712-04212
715-04120
Starter Housing Assembly
Screw
8
710-05306
951-12207
710-05307
736-04554
736-04556
951-12208
951-12211
951-12210
951-12312
951-12209
951-12212
951-12214
951-12216
Bolt M8×40
9
Starter Assembly
Screw M5×25
Lock Washer 5
Plain Washer 6
Lock Washer
10
11
12
13
14
15
16
17
18
19
21
Brush Assembly
Electrical Starter Back Cover
Bolt M6×100
Electrical Starter Front Cover
Bearing
Bolt M6×30 Assembly
Insulation Washer
Plain Washer 6
Pinion/Clutch Assembly
Gear
Lock Washer 6
Bearing
Nut M6
Pinion Cover
Bearing 6001Zz
Bearing
Dowel Pin 10×14
24
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4P90JU Muffler Assembly
191
191
191
191
48
190
161
161
159
160
158
Ref.
Part Number
Description
48
710-04916
712-04219
951-12270
Bolt M6×14
158
159
Nut M8
Muffler Assembly
Exhaust Pipe Gasket
Muff Stud M8×47
Muffler Stud Assembly
Wire Mesh Shield
Bolt M6×12
160 951-12271
161
161
190
191
951-12272
951-12196
951-12278
710-05051
25
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4P90JU Carburetor Assembly
134
134
133
132
137
139
132
I
A
F
136
J
B
C
K
L
K
139
G
D
M
O
138
E
R
H
Q
N
131
S
P
T
U
V
W
X
200 - Carburetor Kit - Major
Y
BB
CC
DD
Z
EE
FF
AA
GG
HH
26
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4P90JU Carburetor Assembly
Ref.
Ref.
Part Number
Description
Part Number
Description
L
n/a
Lock Washer
131
132
133
134
136
137
138
139
751-12771
951-11731
951-11336
723-04071
951-12261
951-12262
951-12263
951-12264
Carburetor Assembly
Fuel Hose Clamp
Fuel Line Kit
M
N
n/a
Nylon/Plastic O-Ring
Fiber O-Ring
n/a
O
n/a
Idle Speed Adjusting Screw
Idle Mixture Screw
Carburetor Body
Fuel Inlet
Plastic Support Clamp
Carburetor Gasket
Carburetor Insulator
Carburetor Insulator Gasket
Carb Stud
P
n/a
Q
n/a
R
n/a
S
n/a
Float Pin
T
n/a
Emulsion Tube
Needle Valve
200 751-12779
Carburetor Kit - Major
(Incl.130,136,B,BB,CC,DD,
G,M,N,U,W,Y,Z)
U
n/a
V
n/a
Main Jet
W
X
n/a
Needle Valve Spring
Float
A
B
C
D
E
F
G
H
I
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Choke Shaft
n/a
Fiber O-Ring
Y
951-12304
751-12772
751-12773
n/a
Fuel Bowl O-Ring
Seat/Fuel Bowl Bolt O-Ring
Solenoid Valve Assembly
Fuel Bowl
Choke Return Spring
Flat Steel Washer
Choke Plate
Z
AA
BB
CC
DD
EE
GG
HH
Idle Jet Assembly
Idle Jet O-Ring
951-11349
710-04938
710-05449
736-04554
710-05337
Fuel Drain Plug Gasket
Fuel Drain Plug
Seat/Fuel Bowl Bolt
Washer
Sheetmetal Housing
Throttle Shaft
J
Throttle Plate
Screw M5×12
K
Screw M3×5
27
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4P90JU Crankshaft & Crankcase Cover
76
75
79
80
77
91
92
83
5
93
90
82
81
98
104
86
89
99
103
88
86
102
84
101
87
100
85
112
195
113
115
116
117
114
118
119
117
117
28
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4P90JU Crankshaft & Crankcase Cover
Ref.
Ref.
Part Number
Description
Part Number
Description
5
951-11622
951-12238
951-11969
951-10307
951-12239
951-12241
951-12363
951-12240
710-04980
710 - 05311
951-12242
715-04121
951-12243
951-12244
710-05312
736-04557
951-12245
751-12246
736-04559
Flexible Clamp
98
99
951-12248
951-12247
Oil Pump Assembly
75
76
77
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
Crankshaft Assembly
Main Bearing
O-Ring 10×2.65
Filter
100 951-12249
Woodruff Key
101
102
103
951-12250
951-12251
951-12252
Filter Spring
Dipstick Assembly
Upper O-Ring
O-Ring 35.5×2.65
Filter Cover
Lower O-Ring
104 951-11956
Governor Gear/Shaft Assembly
Bolt M8×15
Oil Fill Tube Assembly
Bolt M6×35
112
113
114
115
116
710-05313
736-04560
951-12690
951-12253
951-12254
951-12318
Oil Drain Plug Washer
Oil Filter
Oil Drain Plug
Regulator
Screw Joint
Dowel Pin 8×14
Ball 6.35
Crankcase Cover
Crankcase Cover Asm
(Incl.87-89,100-104,112,113,115,116)
Bolt M8×54
Spring
Bolt
117
118
119
195
710-04982
951-11375
710-05314
951-12194
Crankshaft Thrust Washer
Balanceable Shaft Bearing
Balanceable Shaft Assembly
Balanceable Thrust Washer
Lower Crankshaft Seal
Bolt M8×43
Oil Drain Plug Assembly
29
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4P90JU Cylinder Head
177
176
197 - Gasket Kit - Complete
198 - Gasket Kit - External
199 - Complete Engine
173
175
174
172
157
154
155
175
153
152
174
151
151
162
173
164
157
155
153
148
149
163
150
147
146
193
146
149
147
148
143
194
171
145
166
167
168
169
196
164
163
144
170
142
165
140
142
140
142
142
140
141
140
30
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4P90JU Cylinder Head
Ref.
Ref.
Part Number
Description
Part Number
Description
951-12202
Cylinder Head Kit
(Incl.144,156,163,164,166)
Air Valve Core
140 710-05315
Bolt M5×10
141
142
143
951-12265
710-05316
951-12266
Cowl
166 751-12774
167 751-12775
168 751-12776
Valve Cover Bolt
Valve Cover
Strainer Clip
Strainer
144 951-12267
145 951-11981
146 751-11124
147 751-11123
148 951-11966
Valve Cover Ring Gasket
Rocker Arm Assembly
Jam Nut
169
170
171
172
173
174
175
176
177
193
194
196
197
751-12777
736-04629
710-05450
951-12273
715-04122
951-11335
951-11962
736-04561
951-12274
951-12329
710-05344
951-12197
951-12204
The Air Valve Bonnet
Washer
Screw M5×12
Fulcrum Nut
Cylinder Head Gasket
Cylinder Head Dowel 12×16
Push Rod Kit
Rocker Arm
149
150
151
152
153
154
155
157
162
163
710-04962
951-12268
951-12081
951-12080
951-12078
951-11964
951-12077
951-11337
951-10292
710-05317
Rocker Arm Stud
Push Rod Guide
Exhaust Valve Adjuster
Exhaust Valve Spring Retainer
Valve Spring
Tappet
Camshaft Thrust Washer
Camshaft Assembly
Spark Arrestor
Intake Valve Seal
Valve Spring Retainer
Valve Kit
Spark Arrestor Screw
Valve Cover Kit
Gasket Kit - Complete
(Incl.47,50,58,74,113,118,
130,136-138,144,160,166)
Gasket Kit - External
(Incl.113,130,136-138,144,160)
Complete Engine
Spark Plug/F6Rtc
Bolt M10×1.25×85
Bolt /M10×1.25×65
Cylinder Head Asm
(Incl.137-139,144,146-157,
160,161,163-172)
164 710-05318
165 751-12778
198
199
951-12201
952Z4P90JU
31
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4P90JU Ignition & Electrical
40
41
42
43
38
38
38
44
45
39
46
Ref. Part Number
Description
38
39
40
41
42
43
44
45
46
710-04920
951-12220
712-04220
951-12221
751-12222A
951-12223
951-12224
710-04940
951-12279
Bolt M6×28
Ignition Coil Assembly
Flywheel Nut M16×1.5
Fan Mounting Plate
Cooling Fan
Flywheel
Coil Assy., Charge
Bolt M6×10
Cowl
32
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Notes
33
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4P90JUA Air Intake
120
122
121
121
126
124
127
128
127
130
129
Ref. Part Number
Description
120 951-12255
Air Filter Cover Assembly
Air Filter Lock Nut
Air Filter Cover
Sponge Filter
121
712-04291
122 951-12255
124 951-12256
126 951-12260
127 712-04212
128 951-12328
129 951-12257
Air Filter Assembly
Nut M6
Rubber Cap
Manifold
130
951-12258
Manifold Gasket
34
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4P90JUA Engine Shroud
192
192
2
3
1
2
3
4
2
4
3
4
5
6
6
7
Ref.
Part Number
Description
1
751-12205
712-04290
750-05320
710-05304
951-11622
710-05305
951-12206
710-05303
Debris Shield
2
Nut
3
Engine Shroud Spacer
Starter / Shroud Stud M6×100
Flexible Clamp
Hook Bolt
4
5
6
7
Air Shield
192
Self-Tapping Bolt 5.5×25
35
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4P90JUA Crankcase
48
49
50
52
51
197 - Gasket Kit - Complete
198 - Gasket Kit - External
199 - Complete Engine
53
47
189
72
183
185
72
73
57
70
74
186
184
55
183
56
59
54
58
62
63
68
178
60
66
64
65
69
67
36
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4P90JUA Crankcase
Ref.
Ref.
Part Number
Description
Part Number
Description
68
69
70
72
73
951-12234
750-05530
951-12235
951-12236
751-12200A
Throttle Control Bracket
Component Bracket Spacer
Breather Hose Assembly
Breather Hose Clamp
Short Block Assembly
(Incl.37,47-53,55-58,73-77,84,
86-89,91-93,98-104,112,113,
115-119,137,138,144,160,
172,173,175-178,183-186)
Piston
47
48
49
50
51
52
53
54
55
56
57
58
59
60
62
63
64
65
66
67
951-11499
710-04916
751-12770
951-12226
951-12685
951-12227
951-12686
951-12228
951-12229
736-04558
714-04074
951-11574
951-12230
951-12231
951-12232
710-04908
712-04212
951-12233
710-04979
710-05310
Upper Crankshaft Seal
Bolt M6×14
Breather Cover Plate
Breather Gasket
Umbrella Valve
Mesh Screen
Umbrella Valve Seat
Choke Linkage
Governor Arm Shaft
Governor Washer
Governor Cotter Pin
Governor Seal
184 951-12276
185 951-11954
186 951-12277
Piston Pin
Connecting Rod Assembly
Connecting Rod Bolt
Gasket Kit - Complete
(Incl.47,50,58,74,113,118,130
136-138,144,160,166)
Gasket Kit - External
189
197
710-05319
951-12204
Throttle Linkage
Throttle Linkage Spring
Governor Arm
Governor Arm Bolt
Governor Arm Nut M6
Governor Spring
Bolt M6×18
198
199
951-12201
(Incl.113,130,136-138,144,160)
Complete Engine
952Z4P90JUA
Bolt M6×38
37
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4P90JUA Cylinder Head
177
176
197 - Gasket Kit - Complete
198 - Gasket Kit - External
199 - Complete Engine
173
175
174
172
157
154
155
175
153
152
174
151
151
162
173
164
157
155
153
148
149
163
150
147
146
193
146
149
147
148
143
194
171
145
166
167
168
169
196
164
163
144
170
142
165
140
142
140
142
142
140
141
140
38
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4P90JUA Cylinder Head
Ref.
Ref.
Part Number
Description
Part Number
Description
165
951-12202
Cylinder Head Kit
(Incl.144,156,163,164,166)
Air Valve Core
140 710-05315
Bolt M5×10
141
142
143
951-12265
710-05316
951-12266
Cowl
166 751-12774
167 751-12775
168 751-12776
Valve Cover Bolt
Valve Cover
Strainer Clip
Strainer
144 951-12267
145 951-11981
146 751-11124
147 751-11123
148 951-11966
Valve Cover Ring Gasket
Rocker Arm Assembly
Jam Nut
169
170
171
172
173
174
175
176
177
193
194
196
197
751-12777
736-04629
710-05450
951-12273
715-04122
951-11335
951-11962
736-04561
951-12274
951-12329
710-05344
951-12197
951-12204
The Air Valve Bonnet
Washer
Screw M5×12
Fulcrum Nut
Cylinder Head Gasket
Cylinder Head Dowel 12×16
Push Rod Kit
Rocker Arm
149
150
151
152
153
154
155
157
162
163
710-04962
951-12268
951-12081
951-12080
951-12078
951-11964
951-12077
951-11337
951-10292
710-05317
Rocker Arm Stud
Push Rod Guide
Exhaust Valve Adjuster
Exhaust Valve Spring Retainer
Valve Spring
Tappet
Camshaft Thrust Washer
Camshaft Assembly
Spark Arrestor
Intake Valve Seal
Valve Spring Retainer
Valve Kit
Spark Arrestor Screw
Valve Cover Kit
Gasket Kit - Complete
(Incl.47,50,58,74,113,118,130
136-138,144,160,166)
Gasket Kit - External
(Incl.113,130,136-138,144,160)
Complete Engine
Spark Plug/F6Rtc
Bolt M10×1.25×85
Bolt /M10×1.25×65
Cylinder Head Asm
(Incl.137-139,144,146-157
160,161,163-172)
164 710-05318
165 751-12778
198
199
951-12201
952Z4P90JUA
39
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4P90JUA Crankshaft & Crankcase Cover
76
75
79
80
77
91
92
83
5
93
90
82
81
98
104
86
89
88
87
99
103
102
86
84
101
100
85
112
195
113
115
116
117
114
118
119
117
117
40
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4P90JUA Crankshaft & Crankcase Cover
Ref.
Ref.
Part Number
Description
Part Number
Description
98
99
951-12248
951-12247
Oil Pump Assembly
5
951-11622
951-12238
951-11969
951-10307
951-12239
951-12241
951-12363
951-12240
710-04980
710 - 05311
951-12242
715-04121
951-12243
951-12244
710-05312
736-04557
951-12245
751-12246
736-04559
Flexible Clamp
O-Ring 10×2.65
Filter
75
76
77
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
Crankshaft Assembly
Main Bearing
100 951-12249
101
102
103
951-12250
951-12251
951-12252
Filter Spring
Woodruff Key
O-Ring 35.5×2.65
Filter Cover
Dipstick Assembly
Upper O-Ring
104 951-11956
Governor Gear/Shaft Assembly
Bolt M8×15
Lower O-Ring
112
113
114
115
116
710-05313
736-04560
951-12690
951-12253
951-12254
951-12318
Oil Fill Tube Assembly
Bolt M6×35
Oil Drain Plug Washer
Oil Filter
Oil Drain Plug
Screw Joint
Regulator
Crankcase Cover
Crankcase Cover Asm
(Incl.87-89,100-104,112,113,115,116)
Bolt M8×54
Dowel Pin 8×14
Ball 6.35
Spring
117
118
119
195
710-04982
951-11375
710-05314
951-12194
Bolt
Lower Crankshaft Seal
Bolt M8×43
Crankshaft Thrust Washer
Balanceable Shaft Bearing
Balanceable Shaft Assembly
Balanceable Thrust Washer
Oil Drain Plug Assembly
41
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4P90JUA Carburetor Assembly
134
134
133
132
137
139
132
I
A
F
136
J
B
C
K
L
K
139
G
D
M
O
138
E
R
H
Q
N
131
S
P
T
U
V
W
X
200 - Carburetor Kit - Major
Y
BB
CC
DD
Z
EE
FF
AA
GG
HH
42
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4P90JUA Carburetor Assembly
Ref.
Ref.
Part Number
Description
Part Number
Description
L
n/a
Lock Washer
131
132
133
134
136
137
138
139
951-12823
951-11731
951-11336
723-04071
951-12261
951-12262
951-12263
951-12264
Carburetor Assembly
Fuel Hose Clamp
Fuel Line Kit
M
N
n/a
Nylon/Plastic O-Ring
Fiber O-Ring
n/a
O
n/a
Idle Speed Adjusting Screw
Idle Mixture Screw
Carburetor Body
Fuel Inlet
Plastic Support Clamp
Carburetor Gasket
Carburetor Insulator
Carburetor Insulator Gasket
Carb Stud
P
n/a
Q
n/a
R
n/a
S
n/a
Float Pin
T
n/a
Emulsion Tube
Needle Valve
200 751-12779
Carburetor Kit - Major
(Incl.130,136,B,BB,CC,DD
G,M,N,U,W,Y,Z)
U
n/a
V
n/a
Main Jet
W
X
n/a
Needle Valve Spring
Float
A
B
C
D
E
F
G
H
I
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Choke Shaft
n/a
Fiber O-Ring
Y
951-12304
751-12772
751-12773
n/a
Fuel Bowl O-Ring
Seat/Fuel Bowl Bolt O-Ring
Solenoid Valve Assembly
Fuel Bowl
Choke Return Spring
Flat Steel Washer
Choke Plate
Z
AA
BB
CC
DD
EE
GG
HH
Idle Jet Assembly
Idle Jet O-Ring
951-11349
710-04938
710-05449
736-04554
710-05337
Fuel Drain Plug Gasket
Fuel Drain Plug
Seat/Fuel Bowl Bolt
Washer
Sheetmetal Housing
Throttle Shaft
J
Throttle Plate
Screw M5×12
K
Screw M3×5
43
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4P90JUA Muffler Assembly
191
191
191
191
48
190
161
161
159
160
158
Ref. Part Number
Description
48
710-04916
Bolt M6×14
158 712-04219
159 951-12270
160 951-12271
Nut M8
Muffler Assembly
Exhaust Pipe Gasket
Muff Stud M8×47
Muffler Stud Assembly
Wire Mesh Shield
Bolt M6×12
161
161
951-12272
951-12196
190 951-12278
191 710-05051
44
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4P90JUA Starter Assembly
9
8
10
11
12
11
12
11
12
24
25
23
13
24
25
37
14
36
34
35
33
15
37
16
17
35
36
34
31
18
19
28
29
21
30
30
Ref.
Ref.
Part Number
Description
Part Number
Description
23
24
25
28
29
30
31
33
34
35
36
37
951-12528
951-12217
736-04554
951-12529
951-12219
710-05308
951-12324
736-04555
736-04556
736-04477
712-04212
715-04120
Starter Housing Assembly
Screw
8
710-05306
951-12207
710-05307
736-04554
736-04556
951-12208
951-12211
951-12210
951-12312
951-12209
951-12212
951-12214
951-12216
Bolt M8×40
9
Starter Assembly
Screw M5×25
Lock Washer 5
Plain Washer 6
Lock Washer
10
11
12
13
14
15
16
17
18
19
21
Brush Assembly
Electrical Starter Back Cover
Bolt M6×100
Electrical Starter Front Cover
Bearing
Bolt M6×30 Assembly
Insulation Washer
Plain Washer 6
Pinion/Clutch Assembly
Gear
Lock Washer 6
Bearing
Nut M6
Pinion Cover
Bearing 6001Zz
Bearing
Dowel Pin 10×14
45
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4P90JUA Ignition & Electrical
40
41
42
43
38
38
38
44
45
39
46
Ref. Part Number
Description
38
39
40
41
42
43
44
45
46
710-04920
951-12220
712-04220
951-12221
751-12222A
951-12223
951-12224
710-04940
951-12279
Bolt M6×28
Ignition Coil Assembly
Flywheel Nut M16×1.5
Fan Mounting Plate
Cooling Fan
Flywheel
Coil Assy. Charge
Bolt M6×10
Cowl
46
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Notes
47
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To order replacement parts or locate your nearest service dealer call a Customer Support at (800) 800-7310.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
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