If im riding the bike through the city its fine but when i go out on the highway it will run good through the first four gears but when i hit fifth gear it will only run 7000 rpms and in sixth gear it will only run 6000 rpms with throttle held wide open if anyone has any suggestions they would be very appreciated.

 

Is it bogging at 6k, or is it running strong at 6k and just won't go any further?

 

it hesitates a little at 6k and wont get accelerate any further

 

What do your plugs looke like? Can you post pics?

 

brand new