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TROUBLESHOOTING
TABLE
WARNING:
Always stop unit and disconnect spark plug before perform-
ing all of the recommended
remedies below except remedies that require
operation of the unit.
TROUBLE
CAUSE
REMEDY
1. Move ON/STOP switch to ON.
Engine will not
start or will run
only a few
seconds after
starting.
Engine will
_ot idle
oropedy.
Engine will not
accelerate,
lacks power,
or dies under
a load.
Engine
smokes
excessively.
Engine runs
hot.
1. ON/STOP switch in
STOP position.
2. Engine flooded.
3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
6. Carburetor
requires
adjustment.
7. None of the above.
1. Idle speed set too high
or too low.
2. Low Speed Mixture
requires adjustment.
3. Crankshaft
seals worn.
4. Compression
low.
5. None of the above.
1. Air filter dirty.
2. Spark plug fouled.
3. Carburetor
requires
adjustment.
4. Exhaust ports or muf-
tier outlets plugged.
5. Compression
Iow.
6. Chain brake engaged.
7. None of the above.
1. Choke partially on.
2. Fuel mixture incorrect.
3. Air filter dirty.
4. High Speed Mixture
requires adjustment.
5. Crankcase
leak.
1. Fuel mixture incorrect.
2. Spark plug incorrect.
3. High Speed Mixture
set too lean.
4. Exhaust ports or muf-
fler outlets plugged.
5. Carbon build-up on
spark arresting screen.
6. Starter housing dirty
7. None of the above.
2. See "Difficult Starting"
in the
Operation Section.
3. Fill tank with correct fuel mixture.
4. Install new spark plug.
5. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
6. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
7. Contact Sears Service.
1. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
2. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
3. Contact Sears Service.
4. Contact Sears Service.
5. Contact Sears Service.
1. Clean or replace air filter.
2. Clean or replace plug
and regap.
3. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
4. Contact Sears Service.
5. Contact Sears Service.
6. Disengage
chain brake.
7. Contact Sears Service.
1. Adjust choke.
2. Empty fuel tank and refill with
correct fuel mixture.
3. Clean or replace air filter.
4. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
5. Contact Sears Service.
1. See "Fueling Engine" in the Operation
section.
2. Replace with correct plug.
3. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
4. Contact Sears Service.
5. Clean spark arresting screen.
6. Clean starter housing area.
7. Contact Sears Service.
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