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This is an exploded view of the YS 1.20SC Engine
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Or go to the table below to order:

YS120SCEX.JPG (116076 bytes)

#

 Part # Description QTY

Price
1 YS2152 YS 120-SC Crankcase 1

128.50

2 YS0505 Valve Cover 1

14.75

3 YS0510 Valve Cover Gasket (comes in set, YSO2280) 1  
4 YS0515 Valve Cover Screws 2
1.50 
5 YS0520 Head Shims 1
2.50 
6 YS2155 Cylinder Head 1
79.25
7 YS2160 Intake Valve 1
21.50
8 YS2165 Exhaust Valve 1
26.00
9 YS2170 Valve Spring Set 2
 7.25
10 YS2175 Spring Retainer Set 2

7.25

11 YS2180 Valve Spring Retainer Clip 4
7.25
12 YS0555 Rocker Arm Set 2
30.95
13 YS0560 Tappet Adjust Screw Set 2

6.25

14 YS0565 Tappet Lock Nut 2
3.10
15 YS0570 Rocker Arm Shaft 1
5.50
16 YS0575 Rocker Arm Shaft Screw 1
  1.50
17 YS0580 E-Ring set 2
2.50
18 YS0585 Head Screws 5

4.75

19 YS2185 Crankshaft 1
73.75
20 YS2190 Crankshaft Ring 1

25.95

21 YS0595 Cylinder Liner 1
43.25
22 YS2195 Piston 1
43.25
23 YS0605 Wrist pin 1

8.50

24 YS0610 Wrist pin retainer 2
 3.10
25 YS0615 Piston Ring 1
18.50
26 YS2200 Connecting Rod 1
25.95
27 YS2205 Back plate 1
43.25
28 YS2210

Disk Valve   

1

DISCONTINUED
29 YS2215 Front Disk Valve Retainer 1 DISCONTINUED
30 YS2220 Rear Disk Valve Retainer 1 DISCONTINUED
31 YS2225 Retainer Screw 1 DISCONTINUED
32 YS0645 Back Plate Gasket (comes in set, YSO2280) 1  
33 YS0650 Back Plate Screws 6

4.75

34 YS2230 Cam Gear Cover 1
5.10
35 YS0660 Cam Gear Cover O-ring (comes in set, YSO2285) 1  
36 YS2235 Cam Gear Cover Screw Set 2
4.25
37 YS0670 Cam Gear 1
46.25
38 YS0675 Cam followers 2
12.25
39 YS0680 Push Rods 2
13.95
40 YS0685 Push rod covers 2
 7.75
41 YS0690 Push rod cover O-ring (comes in set, YSO2285) 4  
42 YS0695 Front Bearing 1
12.25
43 YS2240 Front Bearing Oil Seal 1
8.75
44 YS0701 Rear Bearing 1
18.75
45 YS0705 Cam Gear Bearings 2
12.95
46 YS0710 Fuel Nipples 4
 9.25
47 YS0715 Regulator Body 1
33.95
48 YS0195 Regulator Adjusting Screw 1
  3.25
49 YS0725 Regulator Screw O-ring  (comes in set, YSO2285) 4  
50 YS0730 Diaphragm 1
3.10
51 YS0176 Plunger 1
3.10
52 YS0180 Plunger Spring 1
 1.50
53 YS0745 Regulator Gasket (comes in set,YSO2280) 1  
54 YS0750 Regulator Screw 2
1.50
55 YS2245 Carburetor Body 1
36.00
56 YS2250 Throttle Barrel 1
25.95
57 YS2050 Low Speed Adjusting Screw 1
8.50
58 YS2060 Low Speed Adj. Screw O-Ring 4

see set# YSO2285
59 YS0765 Needle Valve         Discontinued 1

See Needle Valve Assembly Below
60 YS0770 Needle Valve Socket    Discontinued 1

See Needle Valve Assembly Below
61 YS0775 Needle Socket O-ring 3

3.10

62 YS0385 Needle Valve Detent  Discontinued 1

See Needle Valve Assembly Below
63 YS2255 Throttle Barrel Seal 1
4.25
64 YS1090 Throttle Barrel Retainer 2
3.10
65 YS0785 Throttle Stop 1
1.50
66 YS0790 Throttle Stop Spring 1
1.50
67 YS0200 Throttle Arm/Throttle Arm Screw 1
5.50
68 YS2260 Carburetor gasket 1

available in set,YSO2280
69 YS2265 Drive Washer 1
17.25
70 YS0820 Key Way 1

3.10

71 YS1220 Drive Washer Spacer 1
3.10
72 YS0835 Intake Pipe 1
12.25
73 YS0840 Intake Pipe O-Ring 4

comes in set, YSO2285
74 YS1540 Wrist Pin Access Plug 1
4.75
75 YS0830 Propeller Nut Set 2
7.75
76 YS2270 Propeller Washer 1
 2.25
77 YS2275 Regulator Ballast (discontinued by manufacturer) 1
  YS2280 Gasket Set 1
10.00
  YS2285 O-Ring Set 1
17.25
  YS2290 Carburetor Assembly 1
116.95
  YS0875 See Needle Valve Assembly Below 1  
  YS0405 Check Valve 1
7.75
  YS2295 Back Plate Assembly 1

   73.50

59 YSE2740 Needle Valve Assembly 1

28.95

 

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05/31/07

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