Use and Care Manual

21
2 . LOW OUTPUT
Symptom
Probable cause
Remedy
Flameout when speedup
The smoke is thin, carburetor spout
backward
Fuel filter obstruct, fell short of fuel
Muffler fouled with oily deposits
Clean fuel filter、clean fuel road、
adjust carburetor
Clean the oily deposits
Compress press is inadequate
Piston、piston ring、cylinder attrite
Replace piston、piston ring
Engine leak
Conjoint surface of the cylinder and
crank case leak
Repair
The end of two crank shaft leak The seal is bad Replace seal
Engine overheats
Burning room fouled with oily deposits
Avoid use it for long time、 high
speed and heavy load clean the oily
deposits
3 . ENGINE RUNNING UNSTABLE
Symptom
Probable 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 room fouled with oily deposits
Gasoline branded is unfit
Avoid use it for long time、high speed
and heavy load
Clean the oily deposits
Replace with required branded octane
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
Probable 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