whats happenin, just built the same bike, will post, but man, get rid of the stock pipe before u lose the carb. for chineese, the carb is all right, but its the stock pipe thats holding you back.try a pipe kit from sick bike parts, youll love the performance, and they are not any louder than stock.you can pick up an air filter for the stock carb as well from there. also spookytoothcycles has the performance carb, i have one but havent fired it up yet. i heard good things.also in my opinion, its probably better to lose the tensioner and just squeeze the frame where the chain will hit with some vise grips. the chain will then clear. both chains left and right side will be tight at same time. losing the tensioner, frees up a little power and is one less thing to worry about breakin down the road.