Troubleshooting - Champion 100641 Operator's Manual

100641 - ChAiNSAw

TROUbLEShOOTiNG

Problem
Engine will not start.
The engine will not idle
The engine will not accelerate
The engine lacks power or stalls
The guide bar and saw chain are running
hot, smoking or stuck
The saw chain does not rotate
The saw chain rotates, but does not cut
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Cause
The fuel tank is empty
The purge bulb was not pressed enough
The carburetor is vapor locked
The engine is flooded
The fuel is old (over 30 days) and/or
improperly mixed
The spark plug is not working properly
The air filter is dirty
The fuel is old (over 30 days) and/or
improperly mixed
The idle speed is incorrect
The fuel is old (over 30 days) and/or
improperly mixed
The air filter is dirty
The fuel is old (over 30 days) and/or
improperly mixed
The air filter is dirty
The spark plug is not working properly
The saw chain tension is too tight
The chain reservoir is empty
The guide bar groove and oil passages
are dirty
The automatic oiler flow is too low
The saw chain tension is too tight
The guide bar and saw chain are
assembled incorrectly
The guide bar and saw chain are
damaged
The drive assembly is damaged
The chain brake is engaged
The saw chain is dull
The saw chain is on backwards
33
TROUbLEShOOTiNG
Solution
Fill the fuel tank with properly mixed fuel
Press the purge bulb 10 times or until fuel is
visible
Open fuel cap to let vapor out. Press purge bulb
20 times or more until bulb is 60-75% full of
fuel. Let engine cool until purge bulb can push
vapor out and stay 60-75% full of fuel.
Move the choke knob to Position 2, press the
throttle lockout, squeeze the throttle control and
pull the starter rope
Drain the fuel tank and add fresh, properly mixed
fuel
Refer to Maintaining the Spark Plug
Clean or replace the air filter
Drain the fuel tank and add fresh, properly mixed
fuel
Adjust the idle speed
Drain the fuel tank and add fresh, properly mixed
fuel
Clean or replace the air filter
Drain the fuel tank and add fresh, properly mixed
fuel
Clean or replace the air filter
Refer to Maintaining the Spark Plug
Adjust the saw tension
Refill the chain oil reservoir
Clean the guide bar and oil passages
Increase the oil flow
Adjust the saw chain tension
Refer to Moving and Installing the Guide Bar and
Saw Chain
Inspect the guide bar and saw chain for damage.
Replace them if necessary
Refer to Service information
Disengage the chain brake
Sharpen or replace the saw chain
Check and correct the saw direction