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CHECK-UP OF SPARK PLUG
1. Remove the cap of spark plug and screw off the spark plug using
the plug wrench.
2. Clean the spark plug all around or replace it if it is corroded or
there is too much deposit on it.
3. Regulate the gap of the spark plug to 0.6-0.8mm. (.024 inches -
.032 inches)
The spark plug of the designated type should be used. The applicable
type of spark plug: DR8EA (Torch) or equivalent
VALVE INSPECTION
Refer to maintenance schedule in this owner’s manual for valve adjustment inspection intervals .
Valve clearance should be:
Intake: 0.02-0.03mm
Exhaust: 0.03-0.05mm
The engine will make excess noise if the gap is too large in air valve. If gap is too small valve operation will
be hindered which could result in valve malfunction and failure. Therefore, air valve gap must be checked
periodically.
If you have the proper tools and are mechanically proficient, instructions on adjusting the valve clearance
are given in the service manual. If assistance is needed please contact dealer to find your local service
center.
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