250R High Speed Miss

[fourtrax250r]

ive heard that pvl electronics is the way to go with the big bores. might be the problem but that is an expensive thing to try if youre not sure.

[250r__ICE]

I think it might be ignition related. It runs to good at low and midrange. Pulls hard all the way to the top and then has the miss, when your at wide open throttle. I may try a nology coil and hotwire, and go from there. Just start checking and trouble shooting.

[bean86]

Do you have an in line fuel filter. My cousins R had one and we switched all the ignition stuff out only to find out that the inline fuel filter was plugged. It only did it at high RPMs and we were sure it was somthing in the ignition. Just a thought.