VALVE ADJUSTMENT PROCEDURE
NOTE
In order to properly set the valves, the engine must be at TDC on the
compression stroke. To find TDC on the compression stroke, roll the engine
over until the intake valve closes and stops at TDC.
INTAKE VALVE CLEARANCE ADJUSTMENT
1. Remove the valve cover.
2. Verify cam lobes are pointed down.
3. Insert correct thickness feeler gauge between end of intake valve stem and
adjuster screw.
4. When clearance is correct, hold adjuster screw and tighten locknut securely.
5. Re-check the valve clearance.
6. Repeat adjustment procedure if necessary until clearance is correct with
locknut secured.
MEASUREMENT
Valve Clearance
0.10 mm (0.004”)
EXHAUST VALVE CLEARANCE ADJUSTMENT
1. Remove the valve cover.
2. Verify cam lobes are pointed down.
3. Insert correct thickness feeler gauge between end of exhaust valve stem and
adjuster screw.
4. Loosen locknut and turn adjuster screw until there is a slight drag on feeler
gauge.
5. When clearance is correct, hold adjuster screw and tighten locknut securely.
6. Re-check the valve clearance.
7. Repeat adjustment procedure if necessary until clearance is correct with
locknut secured.
MEASUREMENT
Exhaust Valve Clearance
0.12 mm (0.0047”)
75
MAINTENANCE
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