MAINTENANCE
3-10
VALVE CLEARANCE
INSPECTION
• After the valve clearance inspection, check the
engine idle speed (page 5-78).
• Inspect and adjust the valve clearance while the
engine is cold (below 35°C/95°F).
FRONT:
Remove the cylinder head cover (page 8-6).
Remove the timing and crankshaft hole caps.
Rotate the crankshaft counterclockwise and align
the "FT" mark on the flywheel with the index notch
on the left crankcase cover.
Make sure the piston is at TDC (Top Dead Center) on
the compression stroke.
This position can be obtained by confirming that
there is slack in the rocker arms. If there is no slack,
rotate the crankshaft counterclockwise one full turn
and align the "FT" mark with the index notch again.
When checking the
clearance, slide the
feeler gauge from
the center toward
the outside.
Check the valve clearances by inserting a feeler
gauge between the adjusting screw and valve stem.
CRANKSHAFT HOLE CAP
TIMING HOLE CAP
VALVE CLEARANCES:
IN: 0.15 ± 0.02 mm (0.006 ± 0.001 in)
EX: 0.20 ± 0.02 mm (0.008 ± 0.001 in)
FEELER GAUGE ADJUSTING SCREW
LOCK NUT
FEELER GAUGE
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