3. ENGINE RUNNING UNSTABLE
symptom
Probable cause
Remedy
there are metal knock
sound
piston
ǃ
piston ring
ǃ
cylinder attrite
ǃ
piston pin
ǃ
piston
attrite
bearing of crank shaft
attrite
replace piston
ǃ
piston
ring
replace piston pin
ǃ
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
ǃ
high speed and heavy
load clean the oily
deposits
replace require
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 is use up
spark plug fouled with oily
deposits and short circuit
high voltage wire fall off
add fuel
clean the oily deposits
connect
Summary of Contents for TP425381
Page 1: ...25cc 15 25cc 15 GASOLINE GRASS TRIMMER TP425381...
Page 20: ...TP425381 Exploding view...
Page 22: ...TP425381 Exploding view...
