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6.2.3- Oil filter
1. With a wire hook, take out the oil filter from the feeding port.
2. Wash the filter with gasoline.
WARNING - When returning the filter, use a pinch not to be
folded the suction pipe.
6.2.4- Spark plug
Clean the electrodes with a wire brush and reset the gap to 0.6 mm
as necessary.
6.2.5- Sprocket
Check for cracks and for excessive wear interfering with the chain
drive. If the wear is considerable, replace it with new one.
Never fit a new chain on a worn sprocket, or a worn chain on a
new sprocket.
6.2.6- Way of the cooling air
WARNING
- The engine metal parts can burn your skin. Never touch the
cylinder, muffler or ignition plug etc. during operation or right
after stopping the engine.
- Before starting the engine, check around the muffler and take off sawdust.
If you do not, it will cause the overheating and a fire.
For preventing the trouble, please keep clean around the muffler.
This engine is air-cooled. Dust clogging between the inlet port of the cooling air and cylinder fins
will cause overheating of the engine. Periodically check and clean the cylinder fins after removing
the air cleaner and the cylinder cover.
Important! When installing the cylinder cover, make sure that switch wires and grommets are
positioned correctly in place.
6.2.7- Muffler
If you do not attach the muffler correctly, after engine starts, the
muffler will be loosened and the high temperature exhaust gas
spouts. After cleaning the muffler, pay attention to fit up the
muffler according to the explanation as follows.
1. Muffler body, muffler cover and baffle will be combined
correctly.
2. Be sure the gasket is not broken. If it is broken, change to the
new one.
3. Before tightening the screw, rub the gross on it.
4. After making a test run, re-tighten the screw (TORQUE: 6.9-7.8 N.m./70-80 kg-cm)
WARNING - Right after stopping the engine, do not touch the muffler with one's bare hands.
It will cause to burn your hands.
If carbon clogs between the muffler, it will cause the poor-output and the trouble in starting. After
each 100 hours, check and clean inside the muffler.
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