Good day everyone, yes I am a noob. I have a 2006 that I cannot figure out for the life of me. It has a new topend on it. Now all it does is backfire, won't start at all. I checked all the usual suspects: it has great spark, the cams are timed correctly, valves within spec, new plug. Cannot get it started at all. I even took the airbox inlet off to spray ether thru the carb, still won't start. Any suggestions before i set the bike on fire???