Questions & Answers for: lack power backfires

backfires and then stalls kohler pro 18 on craftsman riding mower. Idles fine but lacks power at high speed. i installed a new carb. does not seem like it is not opening up full throttle and will back

...lack of power. Doesn't sound or feel right. Has new properly gapped plugs. After market pipes were added w/ jet kit Mar 2008, worked great for the season. Worked well for the first tank of fuel this ...

...lack of power, hesitation. rough idle, i know it needs a new radiator but i cant think of why its sputtering and backfiring all the time. any ideas>? everytime i try to start my truck, it turns over ...

...backfires and has no power. I have a toyota corolla model 2000. it will after a short drive under normal operating conditions wil after setting some time in the hot sun will start and idle but lacks ...

91 buick roadmaster lacks power/ major backfire seen in cat My wife was driving our 91 Buick roadmaster and when she shut it off and came out to restart, it had a hard time staying running. I got it ...

...controls or air condition is on. Sounds like you have a bad spark plug or wire.It may even be a bad injector . Symptoms of lack of power under load if it backfires you could bend a rod, pull your ...

...lack power and when you let off after giving it alot of gas and then give it gas again it backfires thru the carbs. it really lacks power... I WOULD DO I COMPRESSION CHECK ON THE CYLINDERS, THEY ...

backfires when driving when driving it backfires lacks power Check the timing, if not set correctly you will experience this along with maybe some trouble starting.

...backfires and lacks power Fuel supply or valve-train issues come to mind. If the fuel mixture is lean, that will cause backfiring and loss of power. Poor fuel atomization caused by incorrect pressure ...

...power might indicate cat is plugging up . backfiring might be timing is off a little . I agree with my learned friend Mr Gallant. Check the timing, backfiring and lack of power is indicative of