I have a 03 Honda 250EX and it had a throttle break just this weekend and we replaced it with another stock throttle. I was in 1st going into 2nd gear to climb a hill and it bogged out and died on me when I pressed the throttle in full accel. I thought bad gas, dirty filter, but that was'nt the problem. It almost sounds like its not getting enough air or its chocked out. We checked everything and don't know whats up. It will run great for awhile and then all of a sudden it will bog like it can't get gas or its getting to much. Please help!!!! Thanks