1
YS4200
Crankcase
1
2
YS0505
Valve Cover
1
3
YS0510
Valve Cover Gasket
1
4
YS0515
Valve Cover Screws
2
5
YS2605
Head Gasket
1
6
YS2610
Cylinder Head
1
7
YS2160
Intake Valve
1
8
YS2165
Exhaust Valve
1
9
YS2170
Spring Set
2
10
YS2175
Spring Retainer Set
2
11
YS2180
Spring Retainer Clip Set
4
12
YS0555
Rocker Arm Set
2
13
YS0560
Valve Adjuster Set
2
14
YS0565
Adjuster Nut Set
2
15
YS0570
Rocker Arm Shaft
1
16
YS0575
Shaft Set Screw
1
17
YS0580
E-Ring Clip Set
2
18
YS2615
Head Bolt Set
5
19
YS4205
Crankshaft
1
20
YS2625
Cylinder Liner
1
21
YS2630
Piston
1
22
YS0605
Wrist Pin
1
23
YS2635
Wrist Pin Retainer Set
2
24
YS2640
Piston Ring
1
25
YS2645
Connecting Rod
1
26
Back Plate
1
27
Disc Valve
1
28
Rear Disc Retainer
1
29
Disc Retainer Screw
1
30
YS0645
Back Plate Gasket
1
31
YS2655
Back Plate Screw Set
6
32
YS2230
Cam Gear Cover
1
33
YS0660
Cam Cover O-Ring
1
34
YS2235
Cam Cover Screw Set
2
35
YS2660
Cam Gear
1
36
YS0675
Cam Followers
2
37
YS2665
Push Rod Set
2
38
YS2670
Push Rod Cover Set
2
39
YS0690
Push Rod Cover O-Ring set
4
40
YS1050
Front Bearing
1
41
YS2240
Front Bearing Oil Seal
1
42
YS0701
Rear Bearing
1
43
YS0705
Cam Bearing Set
2
44
YS2675
Fuel Nipple Set
6
45
YS0715
Regulator Body
1
46
YS0195
Regulator Adjusting Screw
1
47
YS0725
Regulator Adj Screw O-Ring
1
48
YS0730
Diaphragm
1
49
YS0176
Regulator Plunger
1
50
YS0180
Plunger Spring
1
51
YS0745
Regulator Gasket
1
52
YS0750
Regulator Screw Set
2
54
YS4210
Carburetor Body
1
55
YS4215
Throttle Barrel
1
56
YS2050
Low Speed Adjusting Screw
1
57
YS2060
Low Speed O-Ring
1
58
YS2690
High Speed Needle Valve
1
59
YS2695
High Speed Needle O-Ring
1
60
YS2700
High Speed Needle Seat
1
61
YS2705
Needle Seat O-Ring Set
2
62
YS2710
Needle Valve Detent
1
63
YS2255
Throttle Barrel Seal
1
64
YS1090
Throttle Barrel Retainer
1
65
YS0785
Throttle Stop Screw
1
66
YS0790
Throttle Stop Spring
1
67
YS0200
Throttle Arm
1
68
YS2260
Carburetor Gasket
1
69
YS2715
Drive Washer
1
70
YS2720
Drive Washer Retainer
1
140Limited Parts LIST
71
YS0835
Intake Pipe
1
72
YS0840
Intake Pipe O-Rings
4
73
YS1540
Wrist Pin Access Plug
1
74
YS2270
Propeller Washer
1
75
YS0830
Propeller Nut Set
2
76
YS2190
Crankshaft Ring
1
YS2725
Gasket Set
YS2730
O-Ring Set
YS4220
Carburetor Assembly
YS2740
Needle Valve Assembly
YS0405
Check Valve
YS1195
Fuel Filter
YS2745
Back Plate Assembly
YS2750
Head Assembly
#
Part#
Description
QTY
#
Part#
Description
QTY
2
4
3
10
11
13
12
7
9
6
5
17
16
24
25
8
20
21
18
23
23
22
36
34
32
37
35
38
40
42
41
39
72
72
73
70
69
74
68
71
76
1
43
43
44
44
44
47
66
63
27
39
19
46
45
48
49
49
50
51
14
15
61
60
59
58
52
64
54
56
57
55
67
65
62
26
31
31
31
28
30
29
75
33
YS Parts and Service
1370 PORTER DRIVE MINDEN NEVADA 89423
Phone: 775-267-9252 Fax: 775-267-9690
Specifications may be changed without prior notice.
2002 M
