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Return to Model 90 Schematic List

Review the figure and make your selection of parts from the list below.

Fig.
Item #
SKU/Part #
Part Name
B
1
901001
Crankcase assembly (left and right)
1
B
1-1
901011
Main shaft bushing
1
B
1-2
901004
Counter shaft bushing
1
B
2
(46)0640
Crank case setting screw
3
B
3
(46)0645
Crank case setting screw
8
B
4
901008
Crank case alignment dowel (large)
1
B
5
901009
Crank case alignment dowel (small)
1
B
6
BB6204
Bearing
3
B
7
901010
Crank shaft oil seal (left)
1
B
8
901003
Crank shaft oil seal (right)
1
B
9
(91)470175
Crank shaft thrust snap ring
1
B
10
BB6203
Bearing
1
B
11
(91)470175
Main shaft snap ring
1
B
14
901012
Counter shaft oil seal
1
B
15
(10)0812
Drain plug
1
B
16
901020
Drain plug gasket
1
B
17
901002
Cylinder stud bolt
4
B
18A
901013A
Breather
1
B
23
902700
Crank shaft assembly
1
B
23-1
902701
Crank shaft (magneto side)
1
B
23-2
902702
Crank shaft (clutch side)
1
B
23-3
902710
Connecting rod
1
B
23-4
902712
Connecting rod bushing (small end)
1
B
23-5
902703
Crank pin
1
B
23-6
902709
Bearing - needle bearing (large end)
1
B
23-8
902705
Crank pin thrust washer
2
B
24
902714
Crank shaft washer (left)
1
B
25
902713
Crank shaft key (left)
1
B
26
903001
Flywheel nut
1
B
27
(63)10025
Flywheel setting spring washer
1
B
28-30
4812xx
Piston Components; Pistons, rings, wrist pin & snap rings
1
B
31
902707
Piston wrist pin
1
B
32
902708
Piston pin snap ring
2
B
33
904020
Clutch disc
1
B
34
90402502
Clutch disc spacer t=0.2mm
1
B
34
90402503
Clutch disc spacer t=0.3mm
1
B
34
90402505
Clutch disc spacer t=0.5mm
1
B
35
904014
Crank shaft nut (left hand thread)
1
B
36
904013
Crank shaft lock washer
1
B
37
904000
Clutch assembly
1
B
37-1
904008
Clutch cover
1
B
37-2
904011
Clutch spring set of 6
1 Set
B
37-3
904012
Clutch hub
1
B
37-4
904015
Clutch thrust washer outside
1
B
37-5
904006
Clutch friction disc
3
B
37-6
904007
Clutch plate
2
B
37-7
904004
Clutch cage
1
B
37-8
904005
Clutch cage cover
1
B
37-9
904009
Clutch flathead screw
6
B
37-10
924010
Clutch safety wire
1
B
37-11
904002
Clutch rotor gear
1
B
37-12
904017
Clutch inner spring set of 6
1 Set
B
38
904001
Clutch pinion gear
1
B
39
904003
Clutch pinion bushing
1
B
40
904016
Clutch thrust washer inside
1
B
41
275020
Complete engine screw set
1 Set

* Quantity Required is the quantity of the specific part needed for this figure.
It does not imply a minimum purchase.