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SKU 67414
troubleshooting
engine will not
start
FUEL RELATED:
Low or no fuel in fuel tank or
1.
improper fuel/2-cycle oil mixture.
Choke not in start position, especially
2.
with cold engine.
Low quality or deteriorated, old
3.
gasoline.
Carburetor not primed.
4.
Dirty fuel passageways blocking fuel
5.
flow.
Carburetor needle stuck. Fuel can be
6.
smelled in the air.
Too much fuel in chamber. This can
7.
be caused by the carburetor needle
sticking.
Blocked Fuel Cap Filter (94) or Fuel
8.
Filter (84).
FUEL RELATED:
Fill fuel tank with proper 25:1 unleaded
1.
gasoline/2-cycle oil mix.
Close the choke if engine is cold.
2.
Leave open if the engine is hot.
Use only fresh 25:1 ratio of 89+ octane
3.
unleaded gasoline with 2-cycle oil
mixture.
Prime carburetor by pressing priming
4.
bulb specified number of times (if
equipped).
Clean out passageways using fuel
5.
additive. Heavy deposits may require
further cleaning.
Gently
6.
tap side of carburetor float
chamber with screwdriver handle.
Open the choke. Remove spark plug
7.
and pull the start handle several times
to air out the chamber. Reinstall spark
plug and close the choke.
Clean/replace Filter (84 or 94)
8.
components.
IGNITION (SPARK) RELATED:
Spark plug wire not connected
1.
securely.
Spark plug electrode wet or dirty.
2.
Incorrect spark plug gap.
3.
Spark plug wire or spark plug broken.
4.
Incorrect spark timing or faulty
5.
ignition system.
IGNITION (SPARK) RELATED:
Connect spark plug wire properly.
1.
Clean spark plug.
2.
Reset spark plug gap.
3.
Replace spark plug wire and/or spark
4.
plug.
Have qualified technician diagnose/
5.
repair ignition system.
COMPRESSION RELATED:
Cylinder not lubricated. Problem
1.
after long storage periods.
Loose or broken spark plug. (Hissing
2.
noise will occur when trying to start.)
Loose cylinder head or damaged
3.
head gasket. (Hissing noise will
occur when trying to start.)
COMPRESSION RELATED:
Pour tablespoon of oil into spark plug
1.
hole. Crank engine a few times and try
to start again.
Tighten spark plug. If that does not
2.
work, replace spark plug. If problem
persists, it may be a head gasket
problem, see #3.
Tighten head. If that does not remedy
3.
problem, replace head gasket.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.