68
69
TROUBLESHOOTING ENGINE
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not start
No spark
To check for spark: Disconnect the spark plug wire. Reattach the spark
plug wire and lay spark plug on metal cylinder. Pull the starter rope and
watch for spark at spark plug tip. If there is no spark, repeat test with a
new spark plug
No fuel
Push primer bulb until bulb is full of fuel. If bulb does not fill, primary
fuel delivery system is blocked. Contact a service dealer. If primer bulb
fills, engine may be flooded (see next item)
Flooded engine
Remove spark plug, turn trimmer so spark plug hole is aimed at the
ground. Move choke lever to “RUN” and pull starter cord 10 to 15 times.
This will clear excess fuel from engine. Clean and reinstall spark plug.
Pull starter three times with choke lever at “RUN”. If engine does not
start, move choke lever to “CHOKE” and repeat normal starting
procedure. If engine still fails to start, repeat procedure with a new
spark plug
Starter rope pulls harder now than
when new
Contact Parker Brand
Engine starts but will not
accelerate
Carburettor requires adjustment
Contact Parker Brand
Engine starts but will cut
out when the throttle is
pressed
Choke is in start/closed position
When the engine is running the choke should remain open
(the downwards position)
TROUBLESHOOTING ENGINE
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine starts but will
only run at high speed
at half choke
Carburettor requires adjustment
Contact Parker Brand
Engine does not reach
full speed and emits
excessive smoke
Check oil fuel mixture
Use fresh fuel and the correct 2-cycle oil mix
Air filter dirty
Clean air filter. Refer to “Replacing and
Cleaning Air Filter” earlier in this manual
Carburettor requires adjustment
Contact Parker Brand
Engine starts, runs,
and accelerates but
will not idle
Carburettor requires adjustment
Contact Parker Brand
Oil drips from muffler
Operating trimmer at part
throttle
Operate trimmer at full throttle
Check oil/fuel mixture
Use fresh fuel and the correct 2-cycle oil mix
Air filter dirty
Clean air filter. Refer to “Replacing and Cleaning Air
Filter” earlier in this manual
Carburettor requires adjustment
Turn mixture needle clockwise 1/16 turn