ok so i have an 07 cbr 1krr, the bike has 12k never ragged on or beat on but its got a mystery problem. heres what happens i get the bike to running temp hop on her and take off the bike has full power up to 7k then it just kinda dies like no power almost like it just stops. i have to either shift it up a gear or let off the gas. it does it in every gear my exhaust servo got busted and i removed the flapper off it there is no mods its pretty much a stock bike with the exhaust butterfly removed. there is no fi light or anything i need to get it fixed asap so help me out guys thanks

 

I am not a professional mechanic, but here are some things I would check. It seems to me you have a lot of diagnosing to do unless other folks on here are pretty familiar with this problem on your make/model.

I have found success with starting with the cheapest, easiest fix first and tackling that before moving to the more expensive, difficult fixes. What sucks is that sometimes you learn you should have started with the most expensive, most difficult fix after trying all the cheap/easy fixes. I tried to put my list in what I consider the cheap/easy to expensive/hard order.

Best of luck and please follow up if you find the root of the problem, hope you get her back up and running soon.

Condition of air filter?
Any kinks or pinches in the fuel line or tank breather hose?
Some other clog in the muffler or exhaust system?
Too much oil or corroded oil?
How are the spark plugs?
Loose throttle body or maladjusted throttle body?
How are the injectors?
Do you have an ignition timing problem or is the ECU damaged?
Valves - bad timing or worn?