16
CHECKING THE AIR FILTER
This should be done more frequently in dusty
conditions.
1. Accumulated dust in the air filter will
reduce engine efficiency, increase fuel
consumption and allow abrasive particles to
pass into the engine. Remove the air filter as
often as necessary to maintain in a clean
condition.
2. Light surface dust can readily be removed
by tapping the filter.
3. Heavy deposits should be washed out with a
suitable solvent.
4. Remove the filter cover by pressing the part
of the inside cover shown as Fig.20.
CHECKING THE SPARK PLUG
1. Use the spark plug wrench to remove the
spark plug (turn counter-clockwise to remove)
(Fig.15).
2. Clean and adjust the spark plug gap to
0.6～0.7mm (Fig.21). Replace any
damaged or visibly warn spark plug.
3. Install the spark plug finger-tight in the
cylinder head, and then tighten it firmly
with the spark plug wrench. If a torque
wrench is available,torque the spark plug
to 148-165 inch-pounds (16,7 – 18,6 Nm).
WARNING
Never allow dirt or debris to enter the cylinder bore. Before removing
the spark plug thoroughly clean the spark plug and cylinder head area.
Allow the engine to cool before servicing the spark plug. Incorrect
spark plug installation can result in serious engine damage.
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