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13
CHAIN SHARPENING
Chain sharpening is a complicated task that
requires special tools. We recommend that
you refer chain sharpening to a professional
chain sharpener.
CARBURETOR ADJUSTMENTS
WARNING: The chain will be moving
during most of this procedure. W ear your pro-
tective equipment and observe all safety pre-
cautions. The chain must not move at idle
speed.
The carburetor has been carefully set at t he
factory. Adjustments may be necessary if
you notice any of the following conditions:
S Chain moves at idle. See IDLE SPEED--T
adjusting procedure.
S Saw will not idle. See IDLE SPEED--T ad-
justing procedure.
Idle Speed-- T
Allow engine to idle. If the chain moves, idle
is toofast. Ifthe enginestalls, idleis tooslow .
Adjust speed until engine runs without chain
movement (idle too fast) or stalling (idle too
slow). The idle speed screw is located in the
area above the primer bulb and is labeled T.
S Turn idle speed screw (T) clockwise to in-
crease engine speed.
S Turn idle speed screw (T) counterclock-
wise to de crease engine speed.
STORAGE
WARNING: Stop engineand allow to
cool, and secure the unit before storing or
transporting in a vehicle. Store unit and fuel
in an area where fuel vapors cannot reach
sparks or open flames from water heaters,
electric motors or switches, furnaces, etc.
Store unitwithall guards inplace. Positionso
that any sharp object cannot accidentally
cause injury to passersby . Store the unit out
of reach of children.
S Before storing, drain all fuel from the unit.
Start engine and allow to run until it stops.
S Clean the unit befor e storing. Pay p a rticu-
lar attention to the air int ake area, keeping
it free of debris. Use a mild detergent and
sponge to clean the plastic surfaces.
S Donot store theunit orfuel ina closedarea
where fuel vapors can reach sparks or an
openflamefrom hotwater heaters,electric
motors or switches, furnaces, etc.
S Store in a dr y area out of the reach of chil-
dren.
CAUTION: It is important to prevent
gum deposits from forming in essential fuel
system parts such as the carburetor , fuel fil-
ter, fuel hose, or fueltank during storage. Al-
cohol blended fuels (called gasohol or using
ethanol or methanol) can attract moisture
which leads to fuel mixture separation and
formation of acids during storage. Acidic gas
can damage the engine.
TROUBLE CAUSE REMEDY
Engine will not
start or will run
only a few
seconds after
starting.
1. Ignition switch off.
2. Engine flooded.
3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
1. Move ignition switch to ON.
2. See “Difficult Starting” in
Operation Section.
3. Fill tank with correct fuel mixture.
4. Install new spark plug.
5. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
Engine will
not idle
properly.
1. Idle speed requires
adjustment.
2. Carburetor requires
adjustment.
1. See “Carburetor Adjustment” in the
Service and A djustments Section.
2. Contact an authorized service dealer.
1. Air filter dirty.
2. Spark plug fouled.
3. Chain brake engaged.
4. Carburetor requires
adjustment.
Engine will not
accelerate,
lacks power,
or dies under
a load.
1. Clean or replace air filter.
2. Clean or replace plug and regap.
3. Disengage chain brake.
4. Contact an authorized service dealer.
Engine
smokes
excessively.
1. Too much oil mixed with
gasoline.
1. Empty fuel tank and refill with
correct fuel mixture.
WARNING: Always stop unit and disconnect spark plug before perf orming all of
the recommended remedies below except remedies that require operation of the unit.
TROUBLESHOOTING TABLE
Chain moves
at idle speed.
1. Idle speed requires
adjustment.
2. Clutch requires repair.
1. See “Carburetor Adjustment” in the
Service and A djustments Section.
2. Contact an authorized service dealer.