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66 Servicing Your Honda
Valve Clearance
Cylinder Head Cover Removal
Before inspection, clean the engine thoroughly to
keep dirt from entering the engine.
1. Remove the seat and fuel tank (pages 36, 37).
2. Disconnect the breather tube (1) and spark
plug cap (2).
(1)
(2)
(1) breather tube
(2) spark plug cap
3. Remove the spark plug (page 61).
4. Remove the cylinder head cover A bolt/
rubber seal (3), cylinder head cover B bolts/
rubber seals (4) and cylinder head cover (5).
(5)
(4)
(3)
(3) cylinder head cover A bolt/rubber seal
(4) cylinder head cover B bolts/rubber seals
(5) cylinder head cover
Refer to Safety Precautions on page 25.
Excessive valve clearance will cause noise and
eventual engine damage. Little or no clearance
will prevent the valve from closing and cause
valve damage and power loss. Check the valve
clearance when the engine is cold at the intervals
specified in the Maintenance Schedule (pages 27,
28).
The checking or adjusting of the valve clearance
should be performed while the engine is cold.
The valve clearance will change as engine
temperature rises.
5. Remove the plug hole packing and cylinder
head cover packing.
Positioning At Top Dead Center On The
Compression Stroke
1. Remove the crankshaft hole cap (1).
(1)
(1) crankshaft hole cap
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