i have been doing alot of modifications and never had a problem with it cutting from quarter throttle to wide open It started with my last mod putting the 400 ex boot in place of the stock I also have a really big k&n 5 by 8 inches I have ran through the jeting and tuned my exhaust with the disces cause I have a ct pipe and nothing has made the cutting out any better the only thing I could think of is maybe the caburator cant keep up anymore with the mods any Ideas would be great Im new at this fourm so Im trying it out thanks.

 

When was the last time you had your valves adjusted?

 

2 months ago