New to this site and was looking for suggestions on jetting my 06 yfz 450. Recent stock rebiluild with doing the exception of the exhaust cam mod. Bike has twin air filter in it, still running the airbox lid and have a hmf slip on, still stock header pipe. Bike has 48 pilot and 175 main jet in it (from previous owner) my first time running it since being rebuilt and it has a major dead spot when laying into the throttle. Slow steady increase in throttle and bike wants to pop and backfire shooting yellowish orange flame out the exhaust. Running around 1300 to 1350 ft elevation. Any help is greatly appreciated
