Troubleshooting - Craftsman WEEDWACKER 358.742420 Operator's Manual

TROUBLESHOOTING CHART
TROUBLE
Engine will not
start.
Engine will not
idle properly.
Engine will not
accelerate,
lacks power,
or dies under
a load.
Engine smokes
excessively.
Engine runs hot.
CAUSE
• Engine flooded.
• Fuel tank empty.
• Spark plug not firing.
• Fuel not reaching
carburetor.
• Compression low.
• Idle speed set too low.
• Idle speed set too high.
• Carburetor requires
adjustment.
• Crankshaft seals worn.
• Compression low.
• Air filter dirty.
• Spark plug fouled.
• Carburetor requires
adjustment.
• Carbon build up.
• Compression low.
• Choke partially on.
• Fuel mixture incorrect.
• Air filter dirty.
• Carburetor requires
adjustment.
• Fuel mixture incorrect.
• Spark plug incorrect.
• Carburetor requires
adjustment
• Carbon build up.
REMEDY
• See "Starting Instructions."
• Fill tank with correct fuel mixture.
• Install new spark plug.
• Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
• Contact a Sears Service Center.
• Adjust idle speed screw
clockwise to increase speed.
• Adjust idle speed screw counter-
clockwise to reduce speed.
• See "Carburetor Adjustments."
• Contact a Sears Service Center.
• Contact a Sears Service Center.
• Clean or replace air filter.
• Clean or replace spark plug
and re-gap.
• See "Carburetor Adjustments."
• Contact a Sears Service Center.
• Contact a Sears Service Center.
• Move choke to off position.
• Empty fuel tank and refill with
correct fuel mixture.
• Clean or replace air filter.
• See "Carburetor Adjustments."
• See "Fueling Your Unit."
• Replace with correct spark plug.
• See "Carburetor Adjustments."
• Contact a Sears Service Center.
YOUR WARRANTY RIGHTS AND
OBLIGATIONS: The U. S. Environ-
mental Protection Agency/California
Air Resources Board and SEARS,
ROEBUCK AND CO., USA are
pleased to explain the emissions con-
trol system warranty on your lawn and
garden equipment engine. All new util-
ity and lawn and garden equipment
engines must be designed, built, and
equipped to meet the stringent anti-
smog standards. SEARS must warrant
the emission control system on your
lawn and garden equipment engine for
the periods of time listed below pro-
vided there has been no abuse, ne-
glect, or improper maintenance of your
lawn and garden equipment engine.
Your emission control system includes
parts such as the carburetor and the
ignition system. Where a warrantable
condition exits, SEARS will repair your
lawn and garden equipment engine at
no cost to you. Expenses covered un-
der warranty include diagnosis, parts
and labor. MANUFACTURER'S WAR-
RANTY COVERAGE: If any emissions
related part on your engine (as listed
under Emissions Control Warranty
Parts List) is defective or a defect in
the materials or workmanship of the
engine causes the failure of such an
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