correctly;
z
Compression of the engine is adequate.
z
Dispose of fuel in tank.
z
Insure that fuel is fresh and clean.
z
Check fuel filter to make sure it is clean. (Replace filter if
necessary).
z
Make sure air filter elements are clean.
z
Install new, properly gapped spark plug.
z
When there is serious trouble with the unit, do not try to repair it
yourself but have your distributor or dealer do it for you.
TROUBLESHOOTING GUIDE
1. FAILURE TO START
symptom
Probable cause
Remedy
fuel
system
abnormality
these is no fuel in
tank
fuel filter obstruct
Add fuel in tank
Clean fuel filter
spark
plug
spark
normal
fuel
system
normal
fuel
fuel is too dirty
there is water in
fuel
there is too much
mixture ratio is
improper
instead fuel
instead fuel
tear down spark plug
and dry it
mixture peroration
high
voltage
wire
spark
normal
spark
plug
spark plug fouled
with oily
deposits
Spark plug
insulation
damage
Spark gap is too
large or small
clean the oil deposits
replace spark plug
adjust spark gap
0.6-0.7mm
cylin
der
comp
ress
press
ure
norm
al
fuel
system
normal
high
voltage
spark
abnormality
high voltage wire
breach
or break off
coil looseness
replace or tighten
tighten
Summary of Contents for TP425381
Page 1: ...25cc 15 25cc 15 GASOLINE GRASS TRIMMER TP425381...
Page 20: ...TP425381 Exploding view...
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