TROUBLESHOOTING GUIDE
1. FAILURE TO START
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TROUBLESHOOTING GUIDE
2. LOW OUTPUT
symptom
probable cause
flameout when speedup
fuel filter obstruct,
fall short of fuel
the smoke is thin,
muffler fouled with oily deposits
carburetor spout backward
compress press is shortage
piston、piston ring、
cylinder attrite、
engine leak
Conjoint surface of the
Cylinder and crank cast leak
the end of two crank shaft leak
the seal is bad
engine overheats
burning room fouled with
oily deposits
3. ENGINE RUNNING UNSTABLE
symptom
probable cause
there are metal knock sound
piston、piston ring、
cylinder attrite、
piston pin、piston attrite
bearing of crank shaft attrite
there are metal knock sound
engine overheats
burning room fouled with
oily deposits
gasoline branded is unfit
engine ignition break off
there is water in fuel
spark gap is wrong
coil gap is wrong
4. THE ENGINE SUDDENLY STOPPED
probable cause
fuel is use up
spark plug fouled with oily deposits and short circuit
high voltage wire fall off
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
avoid use it for long time、
high speed and heavy load clean
the oily deposits
replace require branded octane
instead fuel
adjust spark gap 0.6-0.7mm
adjust coil gap 0.3-0.4mm
remedy
add fuel
clean the oily deposits
connect
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