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TROUBLESHOOTING TABLE - Continued
TROUBLE CAUSE REMEDY
Engine 1. Choke partially on. 1. Adjust choke.
smokes 2. Fuel mixture incorrect. 2. Empty fuel tank and refill with
excessively, correct fuel mixture.
3. Air filter dirty. 3. Clean or replace air filter.
4. High Speed Mixture 4. Contact Sears Service (see back cover).
requires adjustment.
5. Crankcase leak.
Engine runs 1. Fuel mixture incorrect.
hot.
Oil inadequate
for bar and
chain
lubrication.
5. Contact Sears Service (see back cover).
1. See "Fueling Engine" in the Operation
section.
2. Replace with correct plug.
3. Contact Sears Service (see back cover).
4. Contact Sears Service (see back cover).
5. Clean spark arresting screen.
2. Spark plug incorrect.
3. High Speed Mixture
set too tean.
4. Exhaust ports or muf-
tier outlets plugged.
5. Carbon build-up on
spark arresting screen.
6. Starter housing dirty
7. None of the above.
1. Oil tank empty.
2. Oil pump or oil filter
clogged.
3. Guide bar oil hole
blocked.
1. Idle speed requires
adjustment.
2. Clutch requires repair.
1. Chain tension too
tight.
2. Carburetor requires
adjustment.
3. Guide bar rails
pinched.
4. Clutch slipping.
5. Chain brake engaged.
1. Chain tension incorrect.
6. Clean starter housing area.
7. Contact Sears Service (see back cover).
1. Fill oil tank.
2. Contact Sears Service (see back cover).
3. Remove bar and clean.
Chain moves at
idle speed.
Chain does cot
move when en-
gine is acceler-
ated.
Chain clatters
or cuts roughly.
1. See "Carburetor Adjustment" in the
Service and Adjustments Section.
2. Contact Sears Service (see back cover).
1. See "Check Chain Tension" in the
Maintenance Section.
2. Contact Sears Service (see back cover).
3. Repair or replace.
2. Cutters damaged.
3. Chain worn.
4. Cutters dull, improperly
sharpened, or depth
gauges too high.
5. Sprocket worn.
6. Chain installed
backwards.
1. Chain cutter tops not
filed flat.
2. Guide bar burred or
bent; rails uneven.
3. Clutch slipping.
1. Cutters damaged on
one side.
2. Chain dull on one side.
4. Contact Sears Service (see back cover).
5. Disengage chain brake.
1. See "Check Chain Tension" in the
Maintenance Section.
2. Contact Sears Service (see back cover).
3. Resharpen or replace chain.
4. See "Chain Sharpening" in the
Service and Adjustments Section.
5. Contact Sears Service (see back cover).
6. install chain in right direction.
Chain stops 1. See "Chain Sharpening" in the
within the cut. Service and Adjustments Section.
2. Repair or replace guide bar.
Chain cuts at
an angle.
3. Guide bar bent or worn.
3. Contact Sears Service (see back cover).
1. See "Chain Sharpening" in the
Service and Adjustments Section.
2. See "Chain Sharpening" in the
Service and Adjustments Section.
3. Replace ,quide bar.
If situations occur which are not covered in this manual, use care and good
judgement. If you need assistance, contact Sears Service or the CUSTOMER
ASSISTANCE HELPLINE at 1-800-235-5878,
20
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