.29.
Warning! If the engine has just stopped running, the muffler will be very hot; don’t work on the engine
before it has cooled.
Note! Spark arrester must be maintained every 100 hours to ensure it can work effectively.
① Loosen out two 4mm screws from the exhaust deflection pipe and take apart the exhaust deflection
pipe.
② Loosen out four 5mm screws from the muffler guard to detach the muffler guard.
③ Loosen out the 4mm screws from the spark arrester to detach it from the muffler.
④ Use a brush to remove carbon deposition from the mesh enclosure of the spark arrester.
Note! No cracks or damage in the spark arrester is allowed. If there is any crack or damage, replace the
spark arrester.
5. Idling adjustment of the carburetor
① Start the engine to warm it up to the normal temperature.
②When engine is idle running, adjust the throttle valve’s
limit screw to set the normal idling speed.
Normal idling speed: 1800±l50rmp
Throttle valve limit
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