26
TROUBLE SHOOTING GUIDE
2. LOW OUTPUT
3. ENGINE RUNNING UNSTABLE
Symptom
Probable cause
Remedy
Flame out when speedup
Fuel filter obstruct
Clean fuel filter
Clean fuel road
The smoke is thin
fall short of fuel
adjust carburetor
Carburetor spout backward
muffler fouled with oily deposits
clean the oily deposits
Compress press is shortage
piston
piston ring
cylinder attrite
replace piston
piston ring
Engine leak
conjoint surface of the
cylinder and crank cass leak
repair
The end of two crank shaft leak
the seal is bad
replace seal
engine overheats
avoid use it for long time
burning room fouled with
oily deposits
high speed and heavy load
clean the oily deposits
Symptom
Probable cause
Remedy
there are knock sound in engine
piston, piston ring,
cylinder attrite
replace piston, piston ring
piston pin, piston attrite
bearing of crank shaft attrite
replace piston pin, piston
replace bearing
there are metal knock sound
engine overheats
avoid use it for long time
burning room fouled with
oily deposits
high speed and heavy load
gasoline branded is unfit
clean the oily deposits
replace require branded octane
engine ignition break off
there is water in fuel
instead fuel
spark gap is wrong
adjust spark gap 0.6-0.7 mm
coil gap is wrong
adjust coil gap 0.3-0.4 mm
Содержание Rapter RR BC 20-42.7
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