i HAVE A 02' GSXR 750 AND CAN NOT GET IT TO RUN RIGHT. It was running perfect and then one day on the highway it began to bog down. I found that the cam sensor had come loose. When i tightened it it changed a little but still runs horrilbe. It is hard to start cold and wont rev over 5000 rpm. Its not throwing any codes, the tps is set correctly and I changed the plugs. Any ideas. I would rather not have to start throwing parts at it. Please help.

 

clean fuel filter.
check plugs N air cleaner.