okay im really pissed. i fucked up my moped. drill out the jet to make it go faster and all it did was make it go slower. i know dont tell me how stupid i am. well i tried soldering it and re drilling a smaller size. nope didnt work. its still slow. so wht im going to do is buy a hi flow air filter and a new jet. what size jet should i get? thts all i really need to know. oh and i dont have a bi turbo all ive done is unrestrict my exhaust