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: 2,700 (±300)
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
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.
Replace the spark plug. Check the Specifications page in this manual for the proper spark plug for your unit.
Idle engine until cool.
Excessive vibration.
Warped or damaged attachment.
Loose gearcase.
Bent main shaft/worn or damaged bushings.
Inspect and replace attachment as required.
Tighten gearcase securely. Inspect and replace as necessary.
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