Description
Standard
Wear limit
Cylinder inside diameter
33.00 mm *
33.10 mm *
39.00 mm **
39.10 mm **
Piston outside diameter
32.99 mm *
32.90 mm *
38.99 mm **
38.90 mm **
Piston pin outside diameter
8.00 mm
7.95 mm
Cam lift
22.79 mm
22.49 mm
(inlet and exhaust)
Free length of valve springs
23.40 mm
22.50 mm
Valve stem outside diameter
Inlet:
3.985 mm
3.900 mm
Exhaust:
3.950 mm
3.880 mm
Valve guide inside diameter
4.000 mm
4.060 mm
Clearance between valve stem and guide
Inlet:
0.015 - 0.048 mm
0.098 mm
Exhaust:
0.050 - 0.083 mm
0.120 mm
Valve head diameter
Inlet:
12.5 mm *
13.5 mm **
Exhaust:
12.0 mm
Clutch lining:
2.0 mm
1.0 mm
*
FS 25-4
** FS 65-4
FS 25-4, 65-4
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