3.34
ENGINE
6. Remove oil passage O-Ring (C).
7. Remove large sealing O-Ring from outer edge of stator
plate.
Cam Chain / Tensioner Blade
1. Remove bolt securing tensioner blade to crankcase (D).
2. Remove blade and inspect for cracks, wear, or damage.
3. Remove cam chain (E). Inspect chain for worn or missing
rollers or damage. Stretch chain tight on a flat surface and
apply a 10 lb. (4.53 kg) load. Measure length of a 20 pitch
section of chain. Replace if worn past service limit.
4. Using the special socket, remove the crankshaft slotted nut.
NOTE: The slotted nut is a left hand thread.
5. Remove cam chain drive sprocket and woodruff key from
crankshaft.
6. Inspect sprocket teeth for wear or damage.
7. Inspect woodruff key for wear.
8. Replace any worn or damaged parts.
One Way Valve
The one way valve prevents oil from draining out of the oil tank
and into the crankcase when the engine is off. It must be clean
and have adequate spring pressure in order to seal properly.
1. Remove cap bolt (A), sealing washer (B), spring (C), and
one way valve (D) from PTO side crankcase.
2. Inspect free length of spring and check coils for distortion.
C
D
Chain Service Limit:
5.407” (13.7 cm)
One Way Valve Spring Free Length:
Std: 1.450” (3.68 cm)
E
D
C
B
A
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