MAINTENANCE
4-9
Measure the spark plug gap between the center and
side electrodes with a feeler gauge of a wire type.
If necessary, adjust the gap by bending the side
electrode carefully.
Install the spark plug in to the cylinder head and
hand tighten, then tighten it to the specified torque.
Connect the spark plug cap.
Install the removed parts in the reverse order of
removal.
VALVE CLEARANCE
INSPECTION
• Inspect and adjust the valve clearance while the
engine is cold (below 35°C/95°F).
• Check the engine idle speed (page 4-13) after the
valve clearance inspection.
Remove the following:
– Radiator cover (page 3-13)
– Cylinder head cover (page 9-6)
Rotate the cooling fan (crankshaft) clockwise with
your finger and align the "T" mark on the flywheel
with the index mark.
Make sure the piston is at TDC (Top Dead Center) on
the compression stroke.
This position can be confirmed by checking that
there is slack in the rocker arm.
If there is no slack, it is because the piston is moving
through the exhaust stroke to TDC.
Rotate the crankshaft one full turn and match up the
"T" mark again.
SPARK PLUG GAP: 0.80 – 0.90 mm (0.031 – 0.035 in)
0.80 – 0.90 mm (0.031 – 0.035 in)
TORQUE: 16 N·m (1.6 kgf·m, 12 lbf·ft)
INDEX MARK
"T" MARK
COOLING FAN
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