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CHAIN SHARPENING
Chain sharpening is a complicated task that
requires special tools. We recommended
you refer chain sharpeningto a professional
chain sharpener.
IGNITION TIMING
Ignition timing isfixed and nonadjustable.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better.
• Loosen 3 screws on cylindercover.
• Remove the cylinder cover.
• Pull off the spark plug boot.
• Remove spark plug from cylinder and dis-
card.
• Replace with Champion RCJ-7Y spark
plug and tighten with a 3/4 inch socket
wrench (10-12 ft/Ibs). Spark plug gap
should be 0.025 inches.
• Reinstallthe spark plug boot.
• Reinstall the cylinder cover and 3 screws
(15-20 in/Ibs).
Spark Plug Boot
TROUBLESHOOTING TABLE
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 unitwith all guards in place. Positionso
that any sharp object cannot accidentally
cause injury to passersby. Store the unit out
of reach of children.
• Before storing, drain all fuel from the unit.
Start engine and allow to run until it stops.
• Cleanthe unit beforestoring. 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.
• Do not store the unit orfuel in a closed area
where fuel vapors can reach sparks or an
open flame from hot water heaters, electric
motors or switches, furnaces, etc.
• Store in a dry area out of the reach of chil-
dren.
CAUTION: It is important to prevent gum
deposits from forming in essential fuel sys-
tem parts such as the carburetor, fuel filter,
fuel hose, or fuel tank during storage. Alco-
hol 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.
_k, WARNING: Always stop unit and disconnect spark plug before performing all of
the recommended remedies below except remedies that require operation of the unit.
TROUBLE
Engine will not
start or will run
only a few
seconds after
starting.
Engine will
not idle
properly.
Engine will not
accelerate,
lacks power,
or dies under
a load.
Engine
smokes
excessively.
CAUSE
• Ignition switch off.
• Engine flooded.
• Fuel tank empty.
• Spark plug notfiring.
• Fuel not reaching
carbureto_
• Carburetor requires
adjustment
• Crankshaft seals worn.
• Air filter dirty.
• Spark plug fouled.
• Carburetor requires
adjustment.
• Too much oil mixed with
gasoline.
REMEDY
• Move ignitionswitch to ON.
• See "Difficult Starting" in
Operation Section.
• Fill tank with correct fuel mixture.
• Install new spark plug.
• Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
• Contact an Authorized Service Dealer.
• Contact an Authorized Service Dealer.
• Clean or replaceairfilter.
• Clean or replace plug
and regap.
• Contact an Authorized Service Dealer.
• Empty fuel tank and refill with
correct fuel mixture.
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