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Ignition timing inspection
Warm up the engine for 3-5 minutes.
Connect the timing light to the lead of spark plug after the
engine is off.
*Note: carefully read the instruction of timing light before
carry out any operation.
Remove the body shield.
Start the engine and it idle running.
Inspect the ignite timing.
In case the "F" mark and the mark on the right cover of crank
case is in a line, the ignition time is correct.
Speed up the engine, and check out if the "F" mark start to
move.
Idle Speed：1900±100rpm/min
Cylinder pressure
Operate when the engine warm up.
Remove the cushion and body shield.
Remove the spark plug.
Install the cylinder pressure gauge.
At full throttle, measure the cylinder pressure by starting the
engine.
The following items shall be check in case of a low pressure:
—Whether the gasket of cylinder cover is damaged;
—whether piston ring is damaged;
—whether the air inlet and piston ring is worn;
—whether the piston and cylinder is worn
When compression pressure is too high, please check the
combustion chamber and carbon distribution at piston head.
测气缸压力：cylinder pressure measuring
Gear oil
Inspection
*Note
Set the middle kickstand on a smooth surface, and keep the
motorcycle upright.
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