My 2013 kfx450r cuts out at 1/2 throttle. When the quad is semi warm it runs fine no cutting out or anything. After 1 run at wide open throttle the quad starts to cut out at 1/2 throttle. Seems like it runs out of fuel. But you can kill it and let it cool off for a few minutes and start it up again and it will run fine for 1 full throttle pull threw all the gears then it starts to cut out again at 1/2 throttle. Any advice or help would be appreciated.