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it is starving for gas,could be as simple as a fuel filter,check air filter to see if its clean. if need be adjust carburater!!

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Q: Why does lawnmower quit when the choke is off?
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MY lawn mower will start to sputter if I run the choke on after the motor is warmed up. It's getting fed too much fuel. Ease off on the choke and it will run better, usually.


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