Problems!!!!!!!HELP

[RaZor]

OK i have a 400 with fmf magamax pipe and jetted and when ever i go to ride it wont start so i have to pull the plug and light it and take a wire brush to it after that it starts right up. Is the jetting to rich and when ever i ride it just coats the plug with carbon or is it something else and what jetting would you recomend with a magagmax pipe? Thanks everyone Lance

[redrider ex]

400 was doing and it turned out to be his carb was over flowing just enough to let gas flood it out when it sit there.

[Extremeracer167]

When i ran my FMF exuast, just the muffler, i had a stock filter, and i ran a 158 main. Didnt tough the Pilot. And it ran GREAT! In fact i won a few locals in the A class with just that done to my engine. But chances are if u fowled a plug, get a new one, because it will never have the same performance as a new one, no matter how good u clean it. A fowled plug is a fowled plug. I think if u put the 158 main in, and put a new plug in, u would be fine.

[bmf400ex]

make sure your needle isn't bent or fugged up letting gas seep into the carb. and one more thing, make sure u always turn your gas off when your not going.

[DGR Designs]

whatever it is its not good unless its just that you leave your gas on

[RaZor]

Thanks guys im gonna try the 158 jet and see how that works and start shuting off my gas know lance