Model #917275520 Craftsman lawn, tractor

Question and Answers


Why does my Craftsman 917275520 backfire at low throttle?


A backfire at low throttle only is usually caused by incomplete ignition of the fuel.

I would replace both spark plugs. If you still have the backfiring, you should get a technician to diagnose the problem. You could have a problem in the ignition module as well.

Read More
Jimmy K -
Sears Technician
June 23, 2009