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1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and
discard.
5. Replace with Champion RCJ--7Y spark
plug and tighten securely with a 3/4 inch
socket w rench. Spark plug gap should
be 0.025 inches.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
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 with all guards inplace. Position so
that any sharp object cannot accidentally
cause injury to passersby. Store the unit out
of reach o f 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 the unit orfuel ina closed area
where fuel vapors can reach sparks or an
open flame from hot water heaters, electric
motors or switches, furnaces, etc.
S
Store in a dry area out of t he reach of chil-
dren.
CAUTION
: It is im portant to prevent gum
deposits from forming in essential fuel system
parts such as the carbur etor, fuel filter, fuel
hose, or fuel tank during storage. Alcohol
blended fuels (called gasohol or using ethanol
or methanol) can attract m oisture which leads
to fuel m ixture separation and f orm ation 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.
3. Spark plug not firing.
4. 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. Carburetor requires
adjustment
2. Crankshaft seals worn.
1. Contact an authorized service dealer.
2. Contact an authorized service dealer.
1. Air f ilter 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 performing all of
the recommended rem edies below except remedies that require operation of the unit.
TROUBLESHOOTING TABLE