Part III Maintenance
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3-9 Storage of engine
After it is shut down, cool the engine down for at least half an hour prior to cleaning. Clean the outer surface,
repair the damaged baking finish and coat thin rust resisting oil on areas that are possible rust.
Washing water with high pressure can enter the air filter and silencer and even enter the cylinder along with the air
passage and cause corrosion and damage.
Water splashing on the hot engine may wreak damage. Therefore, cleaning must be done after the engine is cooled
down.
1) Place a suitable container for containing gasoline under the carburetor (under the overflow pipe).
2) Loosen the oil drain bolt of carburetor, drain the oil in the carburetor to the container for containing gasoline
and fasten the oil drain bolt of carburetor after completing oil drain.
3) Replace engine oil when use it again.
4) Remove the two spark plugs.
5) Pour into a spoon of (5-10 ml) clear engine oil into the cylinder head.
6) Rotate the engine for several circles to scatter the engine oil spread throughout the cylinder head.
7) Re-install the spark plug.
8) Rotate the engine slowly till you feel the resistance. The inlet and exhaust valves are both in the closed status,
which prevent moisture entering the cylinder head.
9) Cover an anti-dust coating to the engine and place it in a ventilated dry place.
During the storage, charge the battery every month. It is benefit for prolonging the service life of the battery.
Oil drain plug
Overflow pipe
Caution
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