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Servicing Your Honda 53
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 (page 29, 30).
2. Remove the spark plug (page 52).
3. Disconnect the breather tube (1).
4. Remove the cylinder head cover bolts (2) and
cylinder head cover (3).
Positioning At Top Dead Center On The
Compression Stroke
1. Remove the crankshaft hole cap (1).
(1) breather tube
(2) cylinder head cover bolts
(3) cylinder head cover
5. Remove the spark plug hole packing.
(1) crankshaft hole cap
2. Remove the spark plug (page 52).
(1)
(3)
(2)
(1)
Refer to Safety Precautions on page 19.
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 (page 21).
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.
(cont’d)
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