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TROUBLESHOOTINGTABLE
WARNING:Alwaysstopunitanddisconnectsparkplugbeforeperform-
ingalloftherecommendedremediesbelowexceptremediesthatrequire
operation of the unit.
TROUBLE CAUSE
Engine will not 1. ON/STOP switch in
start or will run STOP position.
only a few 2. Engine flooded.
seconds after
starting. 3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
6. Carburetor requires
adjustment.
7. None of the above.
Engine will 1. Idle speed set too high
not idle or too low.
properly. 2. Low Speed Mixture
requires adjustment.
3. Crankshaft seals worn.
4. Compression low.
5. None of the above.
Engine will not 1. Air filter dirty.
accelerate, 2. Spark plug fouled.
lacks power, 3. Carburetor requires
or dies under adjustment.
a load. 4. Exhaust ports or muf-
fler outlets plugged.
5. Compression low.
6. Chain brake engaged.
7. None of the above.
Engine 1. Choke partially on.
smokes 2. Fuel mixture incorrect.
excessively.
3. Air filter dirty.
4. High Speed Mixture
requires adjustment.
5. Crankcase leak.
Engine runs 1. Fuel mixture incorrect.
hot.
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.
REMEDY
1. Move ON/STOP switch to ON.
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 (see back cover).
1.
See "Carburetor Adjustment" in the
Service and Adjustments Section.
2. See "Carburetor Adjustment" in the
Service and Adjustments Section.
3. Contact Sears Service (see back cover).
4. Contact Sears Service (see back cover).
5. Contact Sears Service (see back cover).
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 (see back cover).
5. Contact Sears Service (see back cover).
6. Disengage chain brake.
7. Contact Sears Service (see back cover).
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 (see back cover).
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 (see back cover).
5. Clean spark arresting screen.
6. Clean starter housing area.
7. Contact Sears Service (see back cover).
2O
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