![Sad :(](./images/smilies/icon_sad.gif)
it revs fine and smoothly if im gentle with it and dont rag it everywhere, but the moment i wrap it back its goes fine till 8k then bogs down then shoot to 12k then bogs again and shoots to 14k, then when i change gear trying to stay in the powerband between 12-14 it just bogs down as soon as i change gear and then shoot off as soon as i change my throttle position slightly, also the bike has been known to do 143mph top end, where as i can get to around 115 then it bogs that much i cant go any faster even though i can feel the bike trying to pull but it just wont go
![:smt009](./images/smilies/009.gif)
feels asif the throttle is out of sync with the revs or something
personally i think this means the carbs need professionally balancing? any other suggestions?
sorry im a noob to big 4stroke bikes
![confuddled confuddled](./images/smilies/icon_e_confused.gif)