● Do not accelerate abruptly due to bad lubrication of the engine at the beginning
of startup.
● Avoid the speedy idle motion and overspeed motion. If the throttle is totally
opened, the engine will run over speed, which not only shortens the service life of
the engine but also causes more problems in the engine.
1. Reduce the gasoline engine to the slowest speed and run 3~5 minutes.
2. Press the stop switch and stop the engine.
1. Daily check
★ Check that all screws are tightened correctly
★ Check for fuel leakage or air leakage
2. Check after running 20 hours
★ Clean the air filter
★ Clean the fuel strainer
3. Check after running 50 hours
★ Refasten the nuts of the cylinder
★ Clean the accumulated carbon both in the combustion chamber and in the
exhaust of the cylinder
★ Clean the accumulated carbon in the spark plug, adjust the clearance to
(0.5〜 0.7) mm.(Graph 6)
★ Clean the accumulated carbon both in the intake and in the exhaust of the
muffler. (Graph 7,8)
If the gasoline engine isn't used for a long time, it must be maintained as follows:
1. Remove the fuel in the tank and in the carburetor, close the choke totally, draw
the starter 3〜5 times.
2. Take down the spark plug, add certain engine oil from the spark plug hole into
the cylinder, and draw the starter 2〜3 times to move the piston to the top dead
center, then install the spark plug.
3. Use the soft cloth with engine oil to clean the surface of the engine, put the
Ⅵ. STOPPING
Ⅶ. MAINTENANCE
Ⅷ. STORAGE