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H. TROUBLE SHOOTING CHART
TROUBLE CAUSE REMEDY
ENGINE WILL NOT START
ENGINE WILL NOT IDLE
PROPERLY
1. Ignition Switch off.
2, Fueltank empty,
3. SparkPlug notfiring.
4, Engine flooded.
5. Fuel not reaching carburetor.
6. Compression low.
, ,,,,,,,,,,,,,,,,............
1. Idle speed set too low.
2. Idle speed set too high,
3. Lowspeed screw requires adjustment,
4, Crankshaft seals worn.
5. Compression low.
Air filter is dirty.
Spark plug fouled,
Carbon buitd:up on exhaust ports.
Carburetor requires adjustment.
Low Compression.
ENGINE WILL NOT ,1.
ACCELERATE, LACKS 2.
POWER OR DIES 3.
IN THE CUT 4.
5.
ENGINE SMOKES t.
EXCESSIVELY 2,
3-
4.
5.
ENGINE RUNS HOT
OIL INADEQUATE FOR l.
BAR AND CHAIN 2.
LUBRICATION 3.
4,
CHAIN MOVES AT _1.
IDLE SPEED 2.
CHAIN DOES NOT MOVE l r
3.
4.
CHAIN CLATTERS OR 1.
CUTS ROUGHLY 2-
3.
4.
5,
CHAIN STOPS WITHIN 1.
THE CUT 2-
3,
CHAIN CUTS AT 1.
AN ANGLE
2.
3.
Choke partially on.
Air filter dirty,
Oil rich fuel mixture,
1,
2.
3.
4,
5.
6.
2,
3,
4,
5.
2.
3.
4.
5,
2.
3.
High speed needle requires adjustment. 4.
Crankcase leak, 5.
, ,,,.... , ,,,,,...............
1. Fan Housing dirty. 1,
2, Fuel Mixture incorrect. 2,
WHEN ENGINE IS 2. Carburetorrequiresadjustment. 2.
ACCELERATED
, ,,,,,,,,,,,,,,,,,
Move switch to "Start,"
Fill tank with correct fuel mixture.
Install new plug andlor check ignition system.
See Starting Instructions.
Check for dirty fuel filter; clean. Check for
kinked or split fuel line; repair or replace.
Contact a qualified service dealer.
,,,,,,,,,,,,
Adjust idle speed screw ciockwise to
increase speed.
Adjust idle speed screw counterclockwise
to reduce speed.
See Carburetor Adjustments,
Contact a qualified service deale[
Contact a qualified service dealer.
Clean or replace air filter,
Clean or replace Spark Plug and regap.
Contact a qualified service dealer,
See Carburetor Adjustments,
Contact a qualified service dealer,
,, , ,, ,,,,,
Push Choke Knob in,
Clean or replace air filter.
Empty fuel tank and refillwith correct fuel
mixture,
See Carburetor Adjustments.
Contact a qualified service dealer,
Clean fan housing,
See Engine Fuel Mixture.
3, Spark Plug incorrect. 3, Replace with correct plug.
4. High Speed Mixture set too low, 4. See Carburetor Adjustments.
5. Carbon build-up on spark arrestor screen, 5. Clean spark arrestor screen.
6. Carbon build-up onexhaust ports. 6, Contact a qualified service dealer.
Oil tank empty. 1. Fill oil tank,
Improperly adjusted oiler. (If so equipped.) 2. Adjust oiler.
Oif pump or oiI filter clogged, 3. Contact a qualified service dealer.
Guide bar oil hole blocked. 4, Remove bar and ctean,
ldle speed requires adjustment, 1. See Carburetor Adjustments.
Clutch requires repair. 2, Contact aqualified service dealer.
Chain tension too tight. 1. See Chain Tension.
See Carburetor Adjustments,
Guide bar rails pinched.
Clutch slipping.
Chain tension incorrect,
Cutters damaged after striking foreign
material.
Chain wear due to contact with dirt. sand
or frozen wood.
Cutters dull, improperly sharpened; depth
gauges too high,
Sprocket worn,
Chain cutter tops not filed flat.
Guide bar burred or bent; rails uneven,
Clutch slipping.
Cutters damaged on oneside.
Chain dull on one side,
Guide bar bent, orworn.
3. Repairor replace.
4. Contact a qualified service dealer.
1, See Chain Tension.
2. Contact a qualifed service dealer.
3. Resharpenorrepface chain,
4. See Chain Sharpening Instructions.
5.
1.
2,
3.
1,
2.
3.
Contact a qualifed service dealer.
See Chain Sharpening instructions.
Repair or replace Guide Bar.
Contact a qualified service dealer..
Resharpen until all cutters have equal
angles and lengths.
Resharpen until all cutters have equal
angles and lengths,
Replace guide bar,
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