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ENGLISH
Troubleshooting Guide
(continued)
ADDITIONAL PROBLEMS
Poor acceleration.
Clogged air cleaner.
Clogged fuel filter.
Carburetor mixture too lean.
Idle speed set too low.
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Shorted spark plug or loose terminal.
Ignition failure.
Piston seizure.
Ground (stop) wire is disconnected,
or switch is defective.
Overheating due to incorrect spark plug.
Overheated engine.
Engine idle too high.
Broken clutch spring or worn clutch spring boss.
Loose attachment holder.
Warped or damaged attachment.
Loose gearcase.
Bent main shaft/worn or damaged bushings.
Shaft not installed in powerhead or gearcase.
Broken shaft.
Damaged gearcase.
Clean the air cleaner element.
Replace the fuel filter.
Consult with an authorized servicing dealer.
Adjust: 3,000 RPM (±250).
Reset the switch and re-start.
Refuel.
Replace filter.
Drain; replace with clean fuel.
Clean and replace spark plug with a NGK BMR6A.
Tighten the terminal.
Consult with an authorized servicing dealer.
Test and replace as required.
Replace the spark plug with a NGK BMR6A.
Idle engine until cool. (See overheated engine.)
Set idle: 3,000 RPM (±250).
Replace spring/shoes as required, check idle speed.
Inspect and re-tighten holders securely.
Inspect and replace attachment as required.
Tighten gearcase securely.
Inspect and replace as necessary.
Inspect and reinstall as required.
Consult with an authorized servicing dealer.
Symptom
Possible Cause
Remedy
Engine stops abruptly.
Engine difficult to shut off.
Excessive vibration.
Cutting attachment rotates at
engine idle.
Cutter will not rotate.
