Question:

My lawn mower run good while cool,when it warms up it go down to one cylinder.

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scott's lawn tractor 20 h.p. twin cylinder. 6 yrs. old

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  1. Try replacing the spark plug on the dead cylinder.


  2. Sounds like '' vapor lock '' ( thats when the fuel vaporizes before it enters the carberator) Make sure the fuel line is not near the motor, ( as far away from the motor as reasonably possiable)
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