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TROUBLE SHOOTING POINTS
TROUBLE SHOOTING CHART
SYMPTOM
Engine will not start
or wilt run only for
a few seconds
after starting.
Engine will not idle
properly
Engine will not
accelerate, lacks
power, or dies
under a load.
Engine smokes
excessively
Engine runs hot°
Oil inadequate for bar
and chain lubrication.,
Chain moves at
idle speed.
Chain does not move
when engine is
accelerated.
Chain clatters or
cuts roughly
CAUSE
I Fuel tank empty.
2. Engine flooded.
3. Spark plug not firing.
4, Fue! not reaching carburetor,
5. Carburetor requires adjustment.,
6. Stop switch off
7o None of the above.
1. Idle speed set too fast or too slow.
2_ Low speed mixture requires adjuslment
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 muffler outlets plugged
5 Compression low.
6. None of the above.,
1_Air filter dirty,
2, Fuel mixture incorrect,
3. High speed mixture requires adjustment
4. Choke partially on
1, Fuel mixture incorrect.
2., High speed mixture set too low (Lean),
3. Spark plug incorrect.
4 Exhaust ports or muffler outlets plugged r
5. Carbon build-up on muffler outlet screen.
6, Fan housing/cylinder fins dirty.,
7. None of the above.
t. Oil tank empty.
2,, Oil pump or oil filter clogged
3. Guide bar oi! 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
1., Chain tension incorrect.
2. Cutters damaged,
3, Chain worn.
4 Cutters dull, improperly sharpened, or
depth gauges too high,
CORRECTION
1. Fill tank with correct fuel mixture
2 See "Starting Instructions."
3. Install new plug/check ignitionswitch
4. Replace fuel filter; inspect fuel tine
5, See "Carburetor Adjustments."
6. Move switch to the "START" position.
7, Contact your Sears Service CentedDept
!. See "Carburetor Adjustments"
2, See "Carburetor Adjustments."
3 Contact your Sears Service Center/Dept_
4. Contact your Sears Service Center/Dept.
5, Contact your Sears Service Center/Dept.
t. Clean or replace air filter.
2_ Clean or replace spark plug and re-gap.
3 See "Carburetor Adjustments._'
4. Contact your Sears Service CentedDepto
5. Contact your Sears Service Center/DepL
6. Contact your Sears Service Center/Dept,
1. Clean or replace air filler.
2, Refuel with correct fuel mixture.
3. See "Carburetor Adjustments."
4 Push choke knob in.
!.
2.
3.
4.
5.
6.
7-
I
2,
3.
1,
2.
3,
4,
g,
4_
See "Fueling Your Unit?
See "Carburetor Adjustments?
Replace with correct plug.
Contact your Sears Service Center/Dept.
Clean spark arrestor screen
Clean area.
Contact your Sears Service CentedDept,
Fill oil tank
Contact your Sears Service Center/Dept.
Remove bar and clean.
See "Carburetor Adjustments.._'
Contact your Sears Service Center/Dept.
See "Chain Tension;'
See "Carburetor Adjustments."
Repair or replace.
Contact your Sears Service Center/Dept.
See "Chain Tension"
Contact your Sears Service Center/Dept
Resharpen or replace chain
Have chain sharpened
5. Sprocket worn. 5. Contact your Sears Service Center/Dept
6 Chain installed backwards. 6 Install chain in right direction.
Chain stops within 1.'Chain cutter tops not filed flat.r 1 Have chain sharpened
the cut. 2 Guide bar burred or bent; rails uneven. 2. Repair or replace guide bar.
3. Clutch slipping 3. Contact your Sears Service CenteriDepL
Chain cuts at an 1. Cutters damaged on one side. 1. Have chain sharpened
angle, 2. Chain dull on one side. 2, Have chain sharpened
3. Guide bar bent or worn. 3. Replace guide bar,
If situatiohs occur which are not covered in this manua use care and good judgement
Ifyou need assistance, contact your SEARS Service Center/Department or the
CUSTOMER ASSISTANCE HOTLINE at 1-800-235-5878.
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