Page 20
SKU 65075
For technical questions, please call 1-800-444-3353.
troubleshooting
problem
possible causes
probable solutions
Engine misfires
Spark plug wire loose.
1.
Incorrect spark plug gap or
2.
damaged spark plug.
Defective spark plug wire.
3.
Old or low quality gasoline.
4.
Incorrect compression.
5.
Check wire connections.
1.
Re-gap or replace spark plug.
2.
Replace spark plug wire.
3.
Use only fresh 86+ octane
4.
unleaded gasoline.
Diagnose and repair compression.
5.
(Use
engine will not start:
coMpression related
section.)
Engine stops
suddenly
Low oil shutdown.
1.
Fuel tank empty or full of impure or
2.
low quality gasoline.
Defective fuel tank cap creating
3.
vacuum, preventing proper fuel
flow.
Faulty magneto.
4.
Fill engine oil to proper level.
1.
Check engine oil before EVERY
use.
Fill fuel tank with fresh 86+ octane
2.
unleaded gasoline.
Test/replace fuel tank cap.
3.
Have qualified technician service
4.
magneto.
Engine knocks
Old or low quality gasoline.
1.
Engine overloaded.
2.
Incorrect spark timing, deposit
3.
buildup, worn engine, or other
mechanical problems.
Fill fuel tank with fresh 86+ octane
1.
unleaded gasoline.
Do not exceed equipment’s load
2.
rating.
Have qualified technician diagnose
3.
and service engine.
Engine backfires
Impure or low quality gasoline.
1.
Engine too cold.
2.
Intake valve stuck or overheated
3.
engine.
Fill fuel tank with fresh 86+ octane
1.
unleaded gasoline.
Use cold weather fuel and oil
2.
additives to prevent backfiring.
Have qualified technician diagnose
3.
and service engine.
Does not produce
high pressure
Diameter of water supply hose too
1.
small
Water supply is restricted.
2.
Not enough water supply.
3.
Replace hose with a ¾ inch hose.
1.
Check water supply hose for kinks,
2.
leaks, or blockage.
Open water faucet all the way.
3.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.
