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14
CARBURETOR ADJUSTMENTS
Your carburetor is equipped with limiter
caps. Carburetor adjustment is a compli-
cated task. We recommend that you take
your unit to an Authorized Service Dealer.
Damage will occurifyou turnthe needles be-
yond the limiter stops.
BAR MAINTENANCE
If your saw cuts to one side, has to be forced
through the cut, or been runwith animproper
amount of bar lubrication it may be neces-
sarytoservice yourbar . Awornbar willdam-
age your chain and make cutting difficult.
After each use, ensure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:
S
Move ON/STOP switch to the STOP posi-
tion.
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Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.
S
Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Sprocket Hole
Oil Holes
S
Add lubricant to sprocket hole after each
use.
S
Burring of gui de bar rails is a normal
process of r ail wear. Remove these burrs
with a flat file.
S
When rail top isuneven, use aflat file to re-
store square edges and sides.
Correct GrooveWorn Groove
File Rail Edges
and Sides
Square
Replace guide bar when the groove i s w orn,
the guide bar is bent or cracked, or when
excess heating orburring of the rails occurs.
If replacement is necessary, use only the
guide bar specified for your saw in the repair
parts list or on the decal located on the chain
saw.
CHAIN SHARPENING
Chain sharpening is a complicated task that
requires special tools. We recommended
you refer chain sharpening to a professional
chain sharpener.
IGNITION TIMING
Ignition timing is fixed and nonadj ustable.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better.
S
Loosen 3 screws on cylinder cover.
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Remove the cylinder cover.
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Pull off the spark plug boot.
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Remove spark plug from cylinder and dis-
card.
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Replace with Champion RCJ--7Y spark
plug and tighten with a 3/4 inch socket
wrench (10-12 ft/lbs). Spark plug gap
should be 0.025 inches.
S
Reinstall the spark plug boot.
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Reinstall
the cylinder cover and 3 screws (15-20 in/
lbs).
Screws
Spark
Plug Boot
Spark
Plug
Cylinder
Cover
STORAGE
WARNING:
Stop engine and 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 unit withall guards inplace. Position so
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 before storing. Pay particu-
lar attention to the air intake area, keeping
it free of debris. Use a mild detergent and
sponge to clean the plastic surfaces.
S
Donot store theunit orfuel inaclosed area
where fuel vapors can reach sparks or an
open flamefrom hotwater heaters, electric
motors or switches, furnaces, etc.
S
Store in a dry area out of the reach of chil-
dren.
CAUTION
:
Itisimportanttoprevent gumde-
posits from forming in essential fuel system
parts such as the carburetor, fuel filter, fuel
hose, or fuel tank during s torage. Alcohol
blended fuels (called gasohol or using ethanol
or methanol) can attract moisture which leads
to fuel mixture separ ation and for mation of
acids during s torage. Acidic gas can dam age
the engine.