i got a 1999 Xr100r...stage 1 cam from "Hot Cams" and a K&N air filter...i put a digital hour and tach on it...(mainly just to keep track of the hours on the cam) we live in the country soo i run it up and down the roads alot...when i have it tached out in 5 gear and it misses really bad up top....is it actually something wrong or is it just hitting rev limiter/ governer??

 

Pretty hard to tell with out a vid or sound clip or whatever.

 

its probley just hitting its fuel cut off. your top speed should be around 100-120 km/h depending on your sprockets.

*edit* sorry i thought you said 200, your bike should hit cut off around 80 km/h.

 

check the points