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Valve Clearance
66 Servicing Your Honda
Valve Clearance
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.
Before inspection, clean the engine thoroughly to
keep dirt from entering the engine.
1. Remove the seat (page 36).
2. Remove the fuel tank (page 37).
3. Disconnect the breather tube (1) and direct
ignition coil (2).
4. Remove the cylinder head cover bolts/rubber
seals (3), and cylinder head cover (4).
1. Remove the crankshaft hole cap (1).
2. Remove the spark plug (page 61).
3. Remove the cylinder head cover (this page).
Cylinder Head Cover Removal
(1) breather tube (2) direct ignition coil
(3) cylinder head cover bolts/rubber seals
(4) cylinder head cover
(1)
(2)
(4)
(3)
Positioning At Top Dead Center On The
Compression Stroke
(1) crankshaft hole cap
(1)
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