I have a 1994 kx 125 that starts on the first or second kick everytime, after a lap or two the motor slows and quits like it ran out of gas. I have checked spark as soon as it dies with a new plug, has good spark. I have shut the gas off as soon as it dies and pulled the bottom plug in the bowl, full of gas. I am at a loss, any help or new suggestions would be great.
