I've had a ttr90 for about 2 years now and I'm finally getting it to the point where it witll run again. My brother blew the motor and I have replaced the whole top end. After I just got the timing done, the carburetor is acting up and is spitting gas out of the air filter and the bike won't start. I took the carb off the check if it is in stroke and it is. I have the carb apart right now and need help to figure out what's wrong with it and how the fix it.