FOULING PLUGS

[clodoveo]

I have a 2001 426f and the plugs seem to be constantly fouling. Does any one have any ideas on how fix the problem.

[sirthumpalot]

Changing brands of gasoline completely solved my plug fouling with my '01. I was using Mobil which fouled plugs. Chevron and Sunoco works OK for me now. Other people have had other solutions but I hope this one works for you (it's the easiest). ?

[gettin2old4this]

The first thing that comes to mind is you are experiencing a rich condition. When are you fouling plugs, when you are starting the bike and it is cold or when the bike is warm? You might need to go a step leaner on your jetting because as the temparature warms up, it will create a rich condition and the opposite is true when the weather starts cooling off again. The reason being, hot air is less dense than cold air. ?