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SERVICE MANUAL
Maintenance
Spark Plug:
• Recommended spark plug: CR7E
• Remove spark plug cap.
• Clean dirt around the spark plug hole.
• Remove spark plug.
• Measure spark plug gap.
• Spark plug gap: 0.7 mm
• Carefully bend ground electrode of the plug to adjust the gap if necessary.
• Hold spark plug washer and install the spark plug by screwing clockwise.
• Tighten the plug by turning 1/2 turn more with plug socket after installed.
• Tighten torque: 9 ft/lbs.
Valve Clearance:
CAUTION
Checks and adjustment must be performed when the engine temperature is below 35
0
celsius or 95
0
Fahrenheit
Remove cylinder head cover. Turn camshaft bolt in Clockwise direction and make the “T” mark on the camshaft
sprocket align with the cylinder head mark so that the piston is placed at TDC position in compression stroke.
CAUTION
Do not turn the bolt in the Counter Clockwise direction to prevent camshaft bolt loosening
Valve clearance inspection and adjustment:
• Check & adjust valve clearance with feeler gauge.
• Standard Value:
IN 0.10 ± 0.02 mm
EX 0.15 ± 0.02 mm
• Loosen Jam nut and turn the adjustment nut for adjustment.
CAUTION
Re-check the valve clearance after tightening the fixing nut.
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