EN
22
3. ENGINE RUNNING UNSTABLE
Symptom
Possible cause
Remedy
There are knock sound in engine
Piston, piston ring,
Cylinder attrite,
Piston pin, piston attrite,
Bearing of crank shaft attrite
Replace piston, piston ring
Replace piston pin, piston
Replace bearing
There are metal knock sound
Engine overheats
Burning chamber fouled with oily deposits
Gasoline branded is ufit
Engine ignition break off
There is water in fuel
Spark gap is wrong
Coil gap is wrong
Instead fuel
Adjust spark gap 0.6-0.7mm
Adjust coil gap 0.3-0.4mm
4. THE ENGINE SUDDENLY STOPPED
Possible cause
Remedy
Fuel has been used up
Spark plug fouled with oily deposits and short circuit
High voltage wire fall off
Add fuel
Clean the oily deposits
Connect
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Summary of Contents for PB5221
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