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The saw chain tension is too loose Adjust the saw chain tension
The guide bar and saw chain are assembled incorrectly Refer to Removing and Installing the Guide Bar and Saw Chain
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The saw chain tension is too tight Adjust the saw chain tension
The chain oil reservoir is empty Refill the chain oil reservoir
The guide bar groove and oil passages are dirty Clean the guide bar and oil passages
The automatic oiler flow is too low Increase the oil flow
The saw chain tension is too tight Adjust the saw chain tension
The guide bar and saw chain are assembled incorrectly Refer to Removing and Installing the Guide Bar and Saw Chain
The guide bar and saw chain are damaged
Inspect the guide bar and saw chain for damage. Replace them if
necessary
The drive assembly is damaged Refer to Service information
The chain brake is engaged Disengage the chain brake
The saw chain is dull Sharpen or replace the saw chain
The saw chain is on backwards Check and correct the saw chain direction
The fuel tank is empty Fill the fuel tank with properly-mixed fuel
The primer bulb was not pressed enough Press the primer bulb 10 times or until fuel is visible
The engine is flooded
Move the choke knob to Position 2, press the throttle lockout,
squeeze the throttle control and pull the starter rope
The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel
The spark plug is not working properly Refer to Maintaining the Spark Plug
TROUBLESHOOTING
The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel
The air filter is dirty Clean or replace the air filter
PROBLEM SOLUTION
The air filter is dirty Clean or replace the air filter
The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel
The idle speed is incorrect Adjust the idle speed
The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel
The air filter is dirty Clean or replace the air filter
The spark plug is not working properly Refer to Maintaining the Spark Plug
THE SAW CHAIN ROTATES, BUT DOES NOT CUT
THE SAW CHAIN DOES NOT ROTATE
THE GUIDE BAR AND SAW CHAIN ARE RUNNING HOT, SMOKING OR STUCK
THE ENGINE LACKS POWER OR STALLS
THE ENGINE WILL NOT ACCELERATE
THE ENGINE WILL NOT IDLE
THE ENGINE WILL NOT START
If further assistance is required, contact an authorized service center.
THE SAW CHAIN COMES OFF THE GUIDE BAR
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