ZHENGHUA PST150-2, Manual

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5) Pour 0.8L recommended oil into the engine.
Start the engine, let it run at idle speed for 2-3
minutes, shut off the engine and wait for a minute,
check whether the oil is at upper level mark. If the
oil level is below the upper level mark, add the oil
until it reaches the upper level mark.
NOTES:
1) Check oil filler and oil drain bolt carefully to
avoid dripping.
2) Engine oil should be replaced frequently when
riding in dusty area.
3) Please use the oil which we recommend in the
“ FUEL AND ENGINE OIL ” item.
CARBURETOR:
The stable function of carbureting is the basic
request for a engine, the carburetor is set for the best
calibration in the factory. Do not attempt to alter its
setting. There are two items of adjustment, however,
under your care: the idle speed and the gap of throttle
cable.
DRIVE CHAIN
We suggest that you’d better entrust Zhenghua
dealer with replacement of drive chain when the
chain was damaged.
WARNING!
To ensure the maximum safety, the inspection and
adjustment of drive chain should be carried out
before riding.
When performing the periodical check, the following
state of drive chain should be checked.
1) Loose pins
2) Dry or rusty chain links or