Racewarrior350 and I are in the process of rebuilding a 1999 300ex. We are looking into putting a pipe on the fourwheeler. We were at the Honda dealer today and saw a FMF Megamax 2 full system on the wall for under $250.00. That seemed like a good deal. We decided we would like to put this pipe on the bike. It already has a Uni airfilter and we have decided to leave the airbox lid off. My question is what main jet should we use and where should the needle clip be? Any help on this?

Thanks,
Dave

 

I would start with a 128 main and leave the needle alone.