Just bought a 06 brute 750 with a full exhaust, jet kit and rev box. It misses everywhere but wide open. Don't know where to begin. Maybe someone had this problem and can give me some pointers. Thanks

 

Misses everywhere but top end eh... My Bro has the 06 750 with full system HMF and I dont think he even need to rejet.

My Guess is the Jetting... Also... is it a stock air filter or aftermarket?... I found the Stock isnt good enough with the Jetting... try that..