Buell xb12r not running right

[nicholas1064]

Hello I just put a new crank in my buell and put the bike back together. I started it up seems to run fine except when it gets up to 4500 rpm it starts sputtering and losing power. in neutral it runs out fine. I can't seem to find a shops around me that will look at my bike. If anyone has any suggestions it would be much appreciated. I reset the timing ignition and tps

 

[Chicknstripn]

Does this happen in every gear?
And please post year,mileage and modificatons

 

[nicholas1064]

04 buell xb12r 22k just has a k&n intake yes it happens in every gear seem like if I accelerate slowly it doesn't do it till 5000 rpm just

 

[Chicknstripn]

You're clutch in good shape? Did you inspect the clutch plates/friction plates during your rebuild?
Sounds like it might be slipping?
Sounds like that might be the culprit if you're sure your TPS sensor is good to go.

 

[Nubicon]

Are you 100% sure the pushrods are on the right valves? The reddish pink striped ones should go on exhaust, and the white striped ones go on the intake.