Troubleshooting - Predator Engines 62879 Owner's Manual

Troubleshooting

problem
Engine will not start
FUEL RELATED:
1. No fuel in tank or fuel valve closed.
2. Choke not in START position, cold engine.
3. Gasoline with more than 10% ethanol used.
4. Low quality or deteriorated, old gasoline.
5. Carburetor not primed.
6. Dirty fuel passageways.
7. Carburetor needle stuck.
8. Too much fuel in chamber. This can be caused
9. Clogged Fuel Filter.
IGNITION (SPARK) RELATED:
1. Spark plug cap not connected securely.
2. Spark plug electrode wet or dirty.
3. Incorrect spark plug gap.
4. Spark plug cap broken.
5. Circuit breaker tripped.
6. Incorrect spark timing or faulty ignition system.
COMPRESSION RELATED:
1. Cylinder not lubricated.
2. Loose or broken spark plug.
3. Loose cylinder head or damaged head gasket.
4. Engine valves or tappets mis-adjusted or stuck.
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
Page 20
possible Causes
(E15, E20, E85, etc.)
Fuel can be smelled in the air.
by the carburetor needle sticking.
Problem after long storage periods.
(Hissing noise will occur
when trying to start.)
(Hissing noise will occur when trying to start.)
For technical questions, please call 1-888-866-5797.
probable Solutions
FUEL RELATED:
1. Fill fuel tank with fresh 87+ octane stabilizer-
treated unleaded gasoline and open fuel
valve.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Move Choke to START position.
3. Clean out ethanol rich gasoline from fuel
system. Replace components damaged by
ethanol. Use fresh 87+ octane stabilizer-
treated unleaded gasoline only.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
4. Use fresh 87+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Pull on Starter Handle to prime.
6. Clean out passageways using fuel additive.
Heavy deposits may require further cleaning.
7. Gently tap side of carburetor float
chamber with screwdriver handle.
8. Turn Choke to RUN position. Remove
spark plug and pull the start handle several
times to air out the chamber. Reinstall
spark plug and set Choke to START position.
9. Replace Fuel Filter.
IGNITION (SPARK) RELATED:
1. Connect spark plug cap properly.
2. Clean spark plug.
3. Correct spark plug gap.
4. Replace spark plug cap.
5. Reset circuit breaker. Check wiring and
starter motor if breaker continues to trip.
6. Have qualified technician diagnose/
repair ignition system.
COMPRESSION RELATED:
1. Pour tablespoon of oil into spark plug
hole. Crank engine a few times
and try to start again.
2. Tighten spark plug.
If that does not work, replace spark plug.
If problem persists, may have head
gasket problem, see #3.
3. Tighten head.
If that does not remedy problem,
replace head gasket.
4. Have qualified technician adjust/
repair valves and tappets.
ITEM 62879