Omega VG-2501 User Manual page 58

EN
12. TROUBLE SHOOTING GUIDE
2. LOW OUTPUT
Symptom
Flameout when speed Clogged fuel filter, insufficient fuel
up the smoke is thin,
carburetor spout
backward Exhaust muffler with grease trap
Piston, piston ring, cylinder attrite
Compress press is
inadequate Conjoint surface of the cylinder
and crank case leak
The seal is bad
Engine overheats
The end of two crank
shaft leak
Burning room fouled with
oily deposits
3.ENGINE RUNNING UNSTABLE
Symptom
Piston, piston ring, cylinder attrite
There are knock sound
Piston pin, piston attrite
in engine
Bearing of crank shaft
There are metal knock Engine overheats high speed and heavy load
sound Burning room fouled with oily deposits
Gasoline branded is unfit
There is water in fuel
Engine ignition break off
Spark gap is wrong
Coil gap is wrong
4.THE ENGINE SUDDENLY STOPPED
Probable cause
Fuel has been used up
Spark plug fouled with oily deposits and short circuit
High voltage wire fall off
Probable cause
Probable cause
Add fuel
Clean the oily deposits
Connect
18
Remedy
Clean fuel filter, clean fuel road, adjust
carburetor
Clean the oily deposits
Replace piston, piston ring
Repair
Replace seal
Avoid use it for long time, high speed and
heavy load
Clean the oily deposits
Remedy
Replace piston, piston ring
Replace piston pin, piston
Replace bearing attrite
Avoid use it for long time
Clean the oily deposits
Replace with required branded octane
Instead fuel
Adjust spark gap 0.6-0.7mm
Adjust coil gap 0.3-0.4mm
Remedy