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Owner's manual
16. TROUBLESHOOTING GUIDE
1. Failure to start
Problem
Cylinder compress
pressure normal
Fule system
normal
2.Low output
Problem
Flameout when speedup the smoke is thin
carburetor spout backward.
Compress press is shortage.
Engine leak.
The end of two crank shaft leak.
3. Engine running unstable
Problem
There are knock sound in engine.
There are metal knock sound.
Engine ignition break off.
4. The engine suddenly stopped
Problem
Fuel is use up spark plug fouled with oily deposits and short circuit high
voltage wire fall off.
40
Fuel system abnormality
Spark plug spark
normal
Fuel system
normal
High voltage
wire spark
normal
Fuel system normal
High voltage wire spark
abnormality
Compress press is shortage
Ignition system
normal
Compress normal
Probable cause
Fuel filter obstruct fall short of fuel muffler
fouled with oily deposits.
Piston, piston ring, cylinder attrite.
Conjoint surface of the
cylinder and crank cass leak.
The seal is bad.
Engine overheats
burning room fouled with
oily deposits.
Probable cause
Piston, piston ring, cylinder attrite piston pin,
piston attrite
bearing of crank shaft attrite.
Engine overheats burning room fouled with
oily deposits gasoline branded is unfit.
There is water in fuel spark gap is wrong coil
gap is wrong.
Probable cause
These is no fuel in tank fuel
filter obstruct
Fuel is too dirty there
is water in fuel there is
Fuel
too much fuel in cylinder
mixture ratio is improper
Spark plug fouled with oily
eposits spark plug insulation
Spark plug
deposits spark gap is too
large or small.
High voltage wire breachor
break off coil looseness
Piston ring attrite.
piston ring is breaked
Piston ring cementation.
Spark plub looseness
conjoint surface of the
cylinder and crank cass leak
High voltage wire and spark
plug contact badness stop
switch failure or short circuit
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 (0.6-0.7)mm
adjust coil gap (0.3-0.4)mm
Remedy
Add fuel
Clean the oily deposits
Connect
Remedy
Add fuel in tank clean fuel filter
Instead fuel
tear down spark plug and dry it
mixture proration
Clean the oily
deposits replace spark plug
adjust spark gap (0.6-0.7)mm
Replace or tighten.
Replace a new
replace eliminate tighten
eliminate
Tighten the spark plug
cap repair or replace
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