Troubleshooting Guide (continued)
ADDITIONAL PROBLEMS
What To Check
Poor acceleration.
Possible Cause
Clogged air filter.
Clogged fuel filter.
Lean fuel/air mixture.
Idle speed set too low.
Remedy
Clean or replace the air filter.
Replace the fuel filter.
Consult with an authorized servicing dealer.
Adjust idle. Check Specifications page for correct idle speed.
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
Refuel. See Fuel section of manual.
Replace fuel filter.
Drain; replace with clean fuel. See Fuel section of manual.
Clean or replace spark plug. Check the Specifications page in this manual for the proper spark plug for your unit. 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.
Idle engine until cool. Replace the spark plug. Check the Specifications page in this manual for the proper spark plug for your unit.
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.
Adjust idle. Check Specifications page for correct idle speed.
Replace spring/shoes as required.
Inspect and
Attachment will not move.
Shaft not installed in powerhead or gearcase.
Broken shaft. Damaged gearcase.
Inspect and reinstall as required.
Consult with a authorized servicing dealer.
Excessive vibration.
Warped or damaged attachment.
Loose gearcase.
Bent main shaft/worn or damaged bushings.
Trimmer line not wound properly on spool.
Inspect and replace attachment as required.
Tighten gearcase securely.
Inspect and replace as necessary.
Rewind trimmer line.
Engine will not idle down.
Engine idle is set too high.
Engine has air leak.
Adjust idle. Check Specifications page for correct idle speed.
Consult with a authorized servicing dealer.
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