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TROUBLE SHOOTING CHART
SYMPTOM
Engine will not start
or will run only for
a few seconds af-
ter starting.
.... i
Engine will not idle
properly°
Engine will not
accelerate,lacks
power, or dies
under a load.
Engine
smokes
excessively.
lu, nu,,
Engine runs hot.
i,,i,,
Oil inadequate for
bar and chain
lubrication.
Chain moves at Idle
Speed.
Chain does not move
when engine is
accelerated_
, i,,,,,,,
Chain clatters
or cuts roughly.
Chain stops within
the cuL
Chain cuts at an
angle.
TROUBLE SHOOTUNG POINTS
................. ii
CAUSE
1, Fuel tank empty.
2. Engine flooded.
3. Spark plug not firing_
4o Fuel not reaching carburetor,
5, Carburetor requires adjustment.
6, Stop Switch off.
7t None of the above. ..........
1. Idle speed set too fast or too stow,
2o Low speed mixture requires adjustment.
3o Crankshaft seals worn_
4. Compression low,
5. None of the above.
1. Air filter dirty,
2. Spark plug fouled,,
3. Carburetor requires adjustmenL
4,, Exhaust ports or muffler outlets plugged°
5o Compression low,
6. None of the above.
1, Air filterdirty_
2o Fuel mixture incorrect.
3. High speed mixture requires adjustment°
4. Choke partiallyon_
5, Crankcase leak.
i lu, m lu
1, Fuel mixture incorrect,
2, High speed mixture set too low (Lean)
3o Spark plug incorrect.
4, Exhaust portsor muffler outletsplugged,
5. Carbon buiLd-up on muffler outlet screen
6. Fan housing/cylinder fins dirty.
7. None of the above.
,i ,ulJ,,J i, ,,,u
1, Oil tank empty°
2. Oil pump or oil filter clogged_
3, Guide bar oil hole blocke&
,Hi, ,, -
1. Idle speed requires adjustment.
2o Clutch requires repam
i ill i i i,,lu ,,,,,,,
1o Chain tension too tighL
2, Carburetor requires adjustment°
3.. Guide bar rails pinched,
4. Clutch slipping. ,..............
1. Chain tension incorrect,
2_ Cutters damaged
3o Chain wom._
4.. Cutters dull, improperly sharpened, or
depth gauges too high.
5. Sprocket worn. 5_
6. Chain installed backwards. 6
, ,,, ,,,,,,,,,, ........ ,,,,
1. Chain cutter tops not flied flat. 1_
2. Guide bar burred or bent; rails uneven. 2,
3o Clutch stipping, 3,
1. Cutters damaged on one side 1,
2.. Chain duli on one side. 2.
REMEDY
,u ii, i,,,,,,,, ,,i
t, Filltank with correct fuel mixture
2o See "Starting Instructions,"
3, Install new plug/check ignitionsystem,
See "Carburetor Adjustments,
i Clean fuel filter; inspectfuel line_
Move switch to the "START"position.
71 Contact your Sears Serv!ce Center/Dept. i
1, See "Carburetor Adjustments"
41 ' S _
2o See Carburetor Adjustment.
3_ Contact your Sears Service Center/Depto
4_ Contact yourSears Service Center/DepL
5. Contact yoursears serv!ce Center/Dept.
1o Clean or replace air filter,
2. Clean or replace spark plug and re-gap1
3. See "Carburetor Adjustments,"
4. Contact your Sears Service Center/DepL
& Contact your Sears Service CentedDepto
6. Con!ac!...yo..u.rSears Service Center/Dept... '
1, Clean or replace air filter.
2. Refuel with correct fuel mixture.
3. See"Carburetor Adjustments."
4, Push Choke knob in.
5. Co,n!ac,t,.yourSea.rs..Service CentedDept.
t, See "Fueling Your Unit."
2, See "Carburetor Adjustments."
3. Replace with correct piug
4_ Contact your Sears Service CentedDepto
5 Clean spark arrestor screen..
6. Clean area..
7. Contact your,Sears Service Center/DepL
1o Fill oil tank,
2. Contact your Sears Service Center/Dept.
3. Remove bar and clean_
t_ See"Carburetor Adjustments."
2. Contact your Sears Service Center/Dept.
,, ,, ,, ,,Ji Jl ,,,,,,u
1, See "Chain Tension."
2. See "Carburetor Adjustments."
3, Repair or replace,
4. Contact ,your ,Sears Service Center/Dept.
!, See "Chain Tension."
2o Contact your Sears Service Center/Depto
3, Resharpen or replace chain.
4_ See the chain sharpening instructions_
Contact your Sears Service CentedDepto
Install chain in rightdirectlono
See the chain sharpening instructions.
Repair or replace guide bar.
Contact your Sears Service CentedDepto
Resharpen until all cutters have equal
angles and lengths.
Resharpen until all cutters have equal
angles and lengths
3. Guide bar bent or worn. & Replace guide bar.
If situations occur which are not covered in this manual, use care and good judgemento
If you need assistance, contact your SEARS Service Center/Department or the
CUSTOMER ASSISTANCE HOTLINE at 1-800-235-5878.
_26-
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