Questions & Answers for: Craftsman runs rough

...runs rough. I have changed spark plugs, engine runs rough. I have changed spark plugs, fuel filter and gas. Still same problem Check Flywheel Key, Carb Adjustment or if older engine also valve

...runs rough then stalls, wont stay running As the headline says, starts up, runs rough, then stalls. Could it be the pin, or a clogged feul line, or ? Was running great, but hit the sidewalk. Maybe ...

25cc w/simpull started up ok but it idled rough, when i gave it gas it reved up a little but not like other weedeaters i've had, then it was running very rough. it turned off now it won't re-start Try

...rough when pto in engaged. the engine on my craftsman mower runs really well when the mower deck is disengaged. as soon as i engage the mower, the engine starts running really rough. it has electric ...

...runs rough but when I toggle choke on and off it runs better for awhile my briggs and stratton mower runs rough and when I toggle choke on and off it runs better for awhile have to use choke means ...

runs rough all the time Only 2 years old starts first pull all the time but runs rough all the time Improve the Fixya experience for everyone by voting!I would suggest the following:1. Either clean or

...runs rough checked oil and that is ok. on initial startup smoke, is running but roughly Sounds like carburetor problem, remove the air filter and see how it runs without it if it still running rough ...

...runs rough and backfires Mower just started running rough and is very loud and backfires I would adust the  valves. AJUST YOUR VALVES.Take plug out,see if it turns easily.Could be to much ...

New craftsman mower has rough idle backfires and has loss of power 20 up Briggs & str. New motor started running rough. Changed fuel. It sounds like the valves are out of adjustment.

engine runs rough revs whats the mfg and model # sometimes tractors that sit for long periods get build up in carberator that makes starting tough and engine rough running