142
Lubrication system
1. Crankcase. 2. Carburetor. 3. Oil tank. 4.Oil pump
Note ： Worm and worm
wheel should run flexibly
without block and one side
locking meanwhile the
worm wheel has a little leap
axially, “O” ring in oil
pump must not have
edge-cutting.
No oil leakage comes
from the plugs in oil pump,
the sealing ring should be in
good order.
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