27
Trouble Cause Remedy
Engine will not start 
or will run only a few 
seconds after starting.
1. Ignition switch off. 1. Move ignition switch to ON.
2. Engine flooded. 2. See “Difficult Starting” on page 19
3. Fuel tank empty. 3. Fill tank with correct fuel mixture.
4. Spark plug not firing. 4. Install new spark plug.
5. Fuel not reaching carburettor. 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. 1. See “Carburettor Adjustment” on page 28.
2. Carburettor requires adjustment. 2. Contact an authorized service centre.
Engine will not 
accelerate, lacks 
power, or dies under 
a load.
1. Air filter dirty. 1. Clean or replace air filter.
2. Spark plug fouled. 2. Clean or replace plug and regap.
3. Chain brake engaged. 3. Disengage chain brake.
4. Carburettor requires adjustment. 4. Contact an authorized service centre.
Engine smokes 
excessively.
1. Too much oil mixed with gasoline. 1. Empty fuel tank and refill with correct fuel 
mixture.
TROUBLE SHOOTING TABLE
 Warning: Always stop unit and disconnect spark plug  
 before performing all of the recommended remedies  
 below except remedies that require operation of the  
 unit.
STORAGE
Warning: Perform the following steps after each use:
•   Allow the engine to cool and secure the unit before storing or transporting.
•   Store chain saw and fuel in a well ventilated area where fuel vapours cannot reach sparks or open flames from water heaters, 
electric motors or switches, furnaces, etc.
•   Store chain saw with all guards in place and position chain saw so that any sharp object cannot accidentally cause injury.
•   Store chain saw well out of the reach of children .
Seasonal Storage
Prepare your unit for storage at the end of the season or if it will not be used for 30 days or more. If your chain saw is to be stored for 
a period of time:
•   Clean saw thoroughly before storage.
•   Store in a clean dry area.
•   Lightly oil external metal surfaces and guide bar,
•   Oil the chain and wrap it in heavy paper or cloth.