Troubleshooting - Greyhound 97964 Set Up And Operating Instructions Manual

Problem
Engine will not
start
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.
SKU 97964 For technical questions, please call 1-800-444-3353.

Troubleshooting

Possible cause
FUEL RELATED:
1. No fuel in tank or fuel valve closed.
2. Choke not in start position,
especially with cold engine.
3. Low quality or deteriorated, old
gasoline.
4. Carburetor not primed.
5. Dirty fuel passageways blocking
fuel flow.
6. Carburetor needle stuck. Fuel
can be smelled in the air.
7. Too much fuel in chamber. This
can be caused by the carburetor
needle sticking.
IGNITION (SPARK) RELATED:
1. Spark plug wire not connected
securely.
2. Spark plug electrode wet or dirty.
3. Incorrect spark plug gap.
4. Spark plug wire or spark plug
broken.
5. Incorrect spark timing or faulty
ignition system.
COMPRESSION RELATED:
1. Cylinder not lubricated. This can
be a problem after long storage
periods.
2. Loose or broken spark plug.
(Hissing noise will occur when
trying to start.)
3. Loose cylinder head or damaged
head gasket. (Hissing noise will
occur when trying to start.)
4. Engine valves or tappets
misadjusted or stuck.
Possible Solution
FUEL RELATED:
1. Fill fuel tank and open fuel valve.
2. Move choke to start position if engine
is cold.
3. Use only fresh 89+ octane unleaded
gasoline.
4. Prime carburetor by pressing priming
bulb specified number of times
(if equipped). Replace broken or
damaged bulb.
5. Clean out passageways using fuel
additive. Heavy deposits may require
further cleaning.
6. Gently tap side of carburetor float
chamber with screwdriver handle.
7. 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.
IGNITION (SPARK) RELATED:
1. Connect spark plug wire properly.
2. Clean spark plug.
3. Correct spark plug gap.
4. Replace spark plug wire and/or spark
plug.
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. Adjust valve clearance. If that does
not work, clean or replace valves/
tappets.
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