Filter
Top Products
21
Inspect and replace
attachment as required.
Tighten gearcase securely.
Inspect and replace
as necessary.
Poor
acceleration.
Clogged air filter.
Clogged fuel filter.
Lean fuel/air
mixture.
Idle speed set too low.
Clean or replace the air filter.
Replace the fuel filter.
Consult with an authorized
servicing dealer.
Adjust: 2,750 min
-1
Symptom Possible Cause Remedy
Engine stops
abruptly.
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Shorted spark plug or
loose terminal.
Ignition failure.
Piston seizure.
Reset the switch and re-start.
Refuel. See page 12.
Replace fuel filter.
Drain; replace with clean fuel.
See page 12.
Clean or replace spark plug with
a NGK BMR6A. Tighten the terminal.
Replace the ignition unit.
Consult with an authorized
servicing dealer.
Engine difficult
to shut off.
Ground (stop) wire is
disconnected, or
switch is defective.
Overheating due to
incorrect spark plug.
Overheated engine.
Test and replace
as required.
Replace spark plug with a NGK BMR6A.
Idle engine until cool.
Cutting
attachment
moves at
engine idle.
Engine idle too high.
Broken clutch spring
or worn clutch spring
boss.
Loose attachment
holder.
Set idle: 2,750 min
-1
Replace spring/shoes as
required, check idle speed.
Inspect and re-tighten
holders securely.
Excessive
vibration
Warped or damaged
attachment.
Loose gearcase.
Bent main shaft/worn
or damaged bushings.
Attachment will
not rotate
Shaft not installed
in powerhead or
gearcase.
Broken shaft.
Damaged gearcase.
Inspect and reinstall
as required.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Additional Problems
Troubleshooting Guide (Continued)