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ITEM 62214
SAFETY
SETUP
O
PERA
TION
M
AINTENANCE
Problem
Possible Causes
Probable Solutions
Engine misfires
1. Spark plug cap loose.
2. Incorrect spark plug gap or
damaged spark plug.
3. Defective spark plug cap.
4. Old or low quality gasoline.
5. Incorrect compression.
1. Check wire connections.
2. Re-gap or replace spark plug.
3. Replace spark plug cap.
4. Use only fresh 87+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Diagnose and repair compression.
(Use
Engine will not start:
COMPRESSION RELATED
section.)
Engine stops
suddenly
1. Fuel tank empty or full of impure or low quality
gasoline.
2. Low oil shutdown.
3. Defective fuel tank cap creating vacuum,
preventing proper fuel flow.
4. Faulty magneto.
5. Disconnected or improperly
connected spark plug cap.
1. Fill fuel tank with fresh 87+ octane stabilizer-
treated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Fill engine oil to proper level.
Check engine oil before EVERY use.
3. Test/replace fuel tank cap.
4. Have qualified technician service magneto.
5. Secure spark plug cap.
Engine stops when
under heavy load
1. Dirty air filter
2. Engine running cold.
1. Clean or replace element.
2. Allow engine to warm up prior
to operating equipment.
Engine knocks
1. Old or low quality gasoline.
2. Engine overloaded.
3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical problems.
1. Fill fuel tank with fresh 87+ octane stabilizer-
treated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Do not exceed equipment’s load rating.
3. Have qualified technician diagnose
and service engine.
Engine backfires
1. Impure or low quality gasoline.
2. Engine too cold.
3. Intake valve stuck or overheated engine.
4. Incorrect timing.
1. Fill fuel tank with fresh 87+ octane stabilizer-
treated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Use cold weather fuel and oil additives
to prevent backfiring.
3. Have qualified technician diagnose
and service engine.
4. Check engine timing.
Does not produce
high pressure
1. Diameter of water supply hose too small
2. Water supply is restricted.
3. Not enough water supply.
1. Replace hose with a 3/4-inch hose.
2. Check water supply hose for
kinks, leaks, or blockage.
3. Open water faucet all the way.
Output pressure
varies
1. Not enough water supply.
2. Water inlet screen is clogged.
3. Nozzle is clogged.
4. Nozzle has mineral build up.
1. Check water supply hose for kinks, leaks,
or blockage. Open faucet all the way.
2. Remove inlet screen and rinse out.
3. Remove Nozzle and clean.
4. Remove Nozzle and clean with vinegar.
No intake of detergent 1. Detergent hose not properly inserted into unit.
2. Tube cracked or split.
3. Wrong Nozzle.
4. Injector turned off.
5. Injection tube strainer clogged.
6. Nozzle blocked.
7. Dried detergent in injector.
1. Push firmly into injector.
2. Replace tube.
3. Switch to Black Nozzle.
4. Turn collar counterclockwise.
5. Clean strainer.
6. Clean Nozzle.
7. Dissolve by running warm water
through the injection tube. Run clean
water through injector until clear.
