Ok so i have a 99 Banshee, its got some aftermarket things on the bike.. I got FMF Gold series with powercore silencers, pro design intake, std bore pistons, cool heads. Well i rebuilt the top end (namura piston kit) i went thru the break in according to the repair manuel, the plus were the color discribed that they should of been. well the 2nd day i let the machine warm up, putted around for a good 10 mins then i rode like normal.. it ran beautiful but @ the end of the day i lost a cylinder, figured it was a fouled plug so i change em both, then kicked it over. same problem, right cyclinder blowing hot air out n left low amount of cold air. i killed the bike n jus kicked the kick start, not movement... havnt riped the motor apart yet but im really looking to save $ on repairs so im trying to do this myself. Could it be the jets? i think theres 208's in now..