Thinking about replacing my stock muffler on my 450 Foreman with a silent muffler. Do I need to adjust the carburator????

 

It may run rich but at least this is something you can try without hurting the engine.if it were a high performance pipe it would run lean and burn a hole in your piston.Try it out and see if you foul a plug worst case sinerio you need a new plug

 

Hey thanks! Question. If I do foul a plug in the process, what's the fix?? Don't want to keep buying plugs - do I need to adjust the carb, airbox lid, etc.????

Appreciate the help and wisdom.