Hi everybody,

I have a question I hope someone can answer. Before I get started I already did a search with no success. I have a 02 sportsman 400 with a UNI-Filter, White Brothers E-series muffler and i'm also using a Dalton black and white primary clutch spring. I was wanting to know if anyone has a simliar setup and if so what main jet are you using it seems to be running a to lean for my taste.

Thanks,
Victor

 

I have a friend with a 400 and he would to see a little more ooomf, I installed a 400 scrambler primary for him but would an exaust or intake clen upwith jetting help him out?