I just installed a PC pipe and silencer for my bike. I havent taken it to the track yet but I am not sure if the jetting is right. When I start the bike it starts ok but it sort of spits a little when I rev it. I took it down the street and and when I would get on it in 2nd it would sort of dye and then pickup but it was sort of jerky. Do I need to rejet? Or do you think its just the gas thats in the float might be separted from the oil or something. It wasnt doing this before I put the pipe on.