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J. TROUBLE SHOOTING CHART
TROUBLE CAUSE REMEDY
ENGINE WILL NOT START
EI_GINE'WlLL NOT IDLE-
PROPERLY
1. ignition Switch off.
2. Fuel tank empty.
3. Spark Plug not firing.
4. Fuel n0t reaching carburetor.
5. Engine flooded.
6. Compression low.
1. Idling speed set too low.
2.
3.
4.
5.
Idle speed set too high.
Low speed screw requires adjustment.
Crankshaft seals worn.
Compression tow.
ENGINE WILL NOT I. Carburetor requires adjustment. 1. See Carburetor Adjustments, page22.'
ACCELERATE, LACKS 2. Air filter dirty. 2. Clean or replace air filter, page23.
1. Move switch to "Start".
2. Fill tank with correct fuel mixture, page8.
3. Install new plug, page20.
4. Check for dirty fuel filter; ciean. Check for
kinked or split fuel line; repair or replace.
5. See Starting Instructions, page10.
6. Contact Sears Service Center.
1. Adjust idle speed'"screw clockwise' to in-
increase speed, page 22.
2. Adjust idle speed screw counterclockw se
to reduce speed, page22.
3. See Carburetor Adjustments, page22.
4. Replace seals or contact Sears Service
Center.
5. Contact Sears Service Center.
............POWEROR--DfES ...............................................................3:-Spark Plugffouted: ...........................................................................................................3:-Cre-ati-dt-repladeSp-atk--PtfJ-g_-hd-f'-e-g_p; ..............
IN THE CUT page 19. page20.
ENGINE SMOKES
EXCESSIVELY
ENGINE RUN'S'HOT
i......................
OIL INADEQUATE FOR
BAR AND CHAIN
LUBRICATION
CHAIN MOVES AT
IDLE SPEED
CHAIN DOES NOT MOVE
WHEN ENGINE IS
ACCELERATED
CHAIN CLATTERS OR
'CUTS ROUGH LY
CHAIN STOPS Wi"T'HIN
THE CUT
4. Carbon build-up.
CHAIN CUTS AT
AN ANGLE
5.
2.
• 3,
4.
5.
2.
3.
4.
I.
2.
3.
1.
2.
Low Compression.
Choke partially on.
High speed needle requires adjustment.
Air filter dirty.
Oil rich fuel mixture. 4.
Crankcase leak. ,5.
Fuel Mixture Incorrect. 1.
Spark Plug Incorrect. 2.
Carbon build-up. 3.
High Speed Mixture set too low.
Oil tank empty.
Oi! pump:or oil filter clogged.
Guide bar oil hole blocked.
Carburetor requires adjustment.
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 dull, improperly sharpened; depth
gauges too high.
3. Sprocket worn.
4. Chain wear due to Contact with dirt, Sand
or frozen wood.
5. Cutters damaged after striking foreign
material.
1. Chain cutter tops not filed flat. I
21 Guidebar burred or bent; rails uneven.
3_ Clutch slipping,
1. Cutters damaged on one Side.
2. Chain dull on one side.
3. Guide bar bent, or worn.
4. Clean exhaust system including spark
arrestor, page 19:
5. Contact Sears Service Center.
1. Push Choke in.
2. See Carburetor Adjustments, page22.
3. Ctean or replace air filter, page23.
Empty fuel tank and refill with correct fuel
mixture, page&
Contact Sears Service Center.
See Engine Fuel Mixture, page8.
Replace with correct plug, page20.
Clean exhaust.sys:tehns including spark
arrestor, page 19.
4. See Carburetor Adjustments, page 22.
1. Fill oil tank, page9.
2. Contact Sears Service Center.
3: Remove barand clean, page 19.
1. See Carburetor Adjustments, page22.
2. Contact Sears Service Center.
1. See Chain Tension, page8.
2. See Carburetor Adjustments, page 22.
3. Repair or replace, page 7 & 19.
4. Contact Sears Service Center.
1. See Chain Tension, page 8 . '............
2. See Chain Sharpening Instructions, page
page 18 (page 12-13 for Power Sharp "),
3. Replace, page 21.
4. Resharpen or replace Chain, page 18-19
(page 12-!.3 for Power Sharp").
5. Contact Sears Service Center.
Sharpen n!l cutters evenly and uniformly
or replace chain. See chain sharpening
instructions, page 18-19 (page 12-13
for Power Sharp" ).
1. See Chain Sharpening instructions,
page 18-19 (page 12-13 for Power Sharp ").
2. Repair or replace guide bar, page 7 & 19.
3. Contact Sears Service Center.
1. Resharpen until all cutters have equal
angles and lengths, page 18-19 (page 12-13
for Power Sharp''). ........
2. Resharpen until all cutters have equal
angles and lengths, page 18-19 (page 12-13
: . for Power Sharp").
3. Replace guide bar, page 7 & 19.
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