Troubleshooting - Predator Engines 346cc Owner's Manual & Safety Instructions

Troubleshooting

problem
Engine will not start FUEL RELATED:
1. No fuel in tank or fuel valve closed.
2. Choke not in START position,
3. Gasoline with more than 10% ethanol
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
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. Incorrect spark timing or
COMPRESSION RELATED:
1. Cylinder not lubricated.
2. Loose or broken spark plug.
3. Loose cylinder head or damaged
4. Engine valves or tappets
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
Page 16
possible Causes
cold engine.
used. (E15, E20, E85, etc.)
Fuel can be smelled in the air.
caused by the carburetor needle sticking.
faulty ignition system.
Problem after long storage periods.
(Hissing noise will occur
when trying to start.)
head gasket. (Hissing noise will
occur when trying to start.)
mis-adjusted or stuck.
For technical questions, please call 1-800-1-800-444-3353.
probable Solutions
FUEL RELATED:
1. Fill fuel tank and open fuel valve.
2. Move Choke to START position.
3. Clean out ethanol rich gasoline from fuel
system. Replace components damaged
by ethanol. Use fresh 87+ octane
unleaded gasoline only.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
4. Use fresh 87+ octane 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. 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 diagnose/
repair ignition system.
Item 69735