4
MAINTENANCE
1. Daily check
• Check all screws and nuts
• Check oil leakage or air leakage
2. Check after running 20 hours
• Clean the core of the air cleaner
• Clean the gasoline filter
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 ignition plug, adjust the clearance to 0.6mm (Fig 5)
• Clean the accumulated carbon both in the intake and in the exhaust of the muffler (Fig 6,7)
Fig 5
Fig 6
Fig 7
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, stor the engine in a dry
and windy place for the next use.
STORAGE
