Hello, i need som help here, i have no bought myself a Akra to my KTM 450 EXC 04 MOD, after i have put it on my bike i change the idling nozzle to size 42 to 45, and the main nozzle from 172 to 192. But when the bike is started, and i give full throttle, the bike just ''braaauuup'' and then it comes a little bang before it stoppes, it is also very very diffucult to start it up again. Are my bike getting to much fuel? I have also change the position for the needle inn the carbereutor. Does anyone here know what nozzle that should been used, and what position the needle shold be inn? Thanks very much for the help here