WARRANTY
Strict quality control is implemented by our factory in all phases, from
parts manufacturing to final assembly.
If performance deteriorates or a part fails due to a manufacturing
error, YS will repair or replace the engine at no charge in the period of
one year from date of purchase.
Warranty does not cover normal maintenance.
Should the engine be modified, incorrectly assembled or abused, there
will be a normal charge for parts and labor.
#
PART# DESCRIPTION QTY
1 S4101 Crankcase 1
2 S4102 Cylinder Head 1
3 S4103 Head Gasket 1
4 R6104 Head Screws 6
5 S4105 Cylinder Liner 1
6 S4106 Piston 1
7 S4107 Piston Ring 1
8 S7108 Wrist Pin 1
9 R6108 Wrist Pin Retainer 2
10 S4110 Con Rod 1
11 S4111 Crankshaft 1
12 R6211 Front Bearing 1
13 S7113 Rear Bearing 1
14 R6115 Drive Washer Spacer 1
15 R6217 Propeller Nut 1
16 S7116 Back Plate 1
17 R6119 Back Plate Gasket 1
18 R6120 Back Plate Screw 4
19 S4119 Carburetor Body 1
20 R6122 Carburetor Gasket 1
21 S4121 Throttle Barrel 1
22 R6124 Throttle Barrel Retainer 1
23 F1258S Throttle Stop Screw / Spring 1
25 S4125 Hover Needle Valve 1
26 F1546 Hover Needle O Ring 1
27 F1555 Hover Needle Seat 1
28 F1556 Hover Needle Seat O Ring 2
29 F1557 Needle Detent 1
30 S8130 High Speed Needle 1
31 R6203 High Speed Needle O Ring 1
32 S8132 Low Speed Needle 1
33 S8133 Low Speed Needle O Ring 1
34 F1260S Throttle Arm 1
35 S7132 Carburetor Screws 2
36 S7133 Carburetor Subplate 1
38 S8138A Regulator Assembly 1
39 S7136 Diaphragm 1
40 S7140 Regulator Gasket 1
42 S7143 Nipple / Washer 1
43 S7144 Check Valve 1
S7145 Gasket Set 3
S8146 O Ring Set 5
S4105S Piston / Ring / Liner Set 1
S4119S Carburetor Assembly 1
S4125S Needle Valve Assembly 1
Specifications may be changed without prior notice. 2002/M
YS 80ST Parts List
YAMADA MFG.CO.,LTD
67 Tsuchitori Inuyama Aichi 484-0917 JAPAN
TEL: 0568 67 0265 FAX: 0568 67 7801
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29
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21
34
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11
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13
35
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