CHECK CHAIN BRAKE
See CHAIN BRAKE in the OPERATION section.
CLEAN AIR FILTER
CAUTION: Do not clean filter in gasoline or other flammable solvent to avoid creating a fire hazard or producing harmful evaporative emissions.
Cleaning the air filter:
A dirty air filter decreases the life and perfor- mance of the engine and increases fuel con- sumption and harmful emissions. Always clean your air filter after 10 tanks of fuel or 5 hours of operation, whichever comes first. Clean more frequently in dusty conditions. A used air filter can never be completely cleaned. It is advisable to replace your air fil- ter with a new one after every 50 hours of op- eration, or annually, whichever comes first.
1.Loosen 3 screws on cylinder cover.
2.Remove cylinder cover.
3.Remove air filter cover and air filter.
4.Clean the air filter using hot soapy water. Rinse with clean cool water. Air dry com- pletely before reinstalling.
5.Reinstall air filter and air filter cover.
6.Reinstall cylinder cover and 3 screws. Tighten securely.
Cylinder
Air FilterCover
Cover
Air Filter
CLEANING THE SPARK ARREST- ING SCREEN
Cleaning is required every 25 hours of op- eration or annually, whichever comes first.
1.Loosen and remove the nut from the ex- haust outlet cover.
2.Remove the exhaust oulet cover.
3.Remove spark arresting screen. Handle screen carefully to prevent damage.
4.Clean the spark arresting screen gently with a wire brush. Replace screen if breaks are found.
5.Replace any broken or cracked muffler parts.
6.Reinstall spark arresting screen, exhaust outlet cover, and nut. Tighten nut securely.
REPLACE SPARK PLUG
The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and non- adjustable.
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
6.Reinstall the spark plug boot.
7.Reinstall the cylinder cover and 3 screws. Tighten securely.
Cylinder
Cover
Spark
Plug Boot
INSPECT MUFFLER AND SPARK ARRESTING SCREEN
As the unit is used, carbon deposits build up on the muffler and spark arresting screen, and must be removed to avoid creating a fire hazard or affecting engine performance.
Replace the spark arresting screen if breaks occur.
Spark Exhaust
Arresting Outlet
Screen Cover
Nut
Muffler
Spark
Plug
REPLACE FUEL FILTER
To replace fuel filter, drain your unit by run- ning it dry of fuel. Remove fuel cap and its connected retainer from tank. Pull filter from tank and remove from line. Replace and re- assemble.
CHAIN ADJUSTMENT
See CHAIN TENSION in ASSEMBLY section.
CHAIN SHARPENING
WARNING: Improper chain sharp- ening techniques and/or depth gauge mainte- nance will increase the chance of kickback which can result in serious injury.
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