hi i have a 1997 CBR F3. i am having a problem that i need help with. After i let my engine warm up when i reach 4k rpm my engine cuts out and dies the bike was running fine and now i cant get it over 4k rpm. i can drive it fine as long as i stay under 4k rpm. can anyone help me.

 

If you have a side stand switch you need to disconnect it and by pass it. It that doesn't do it then you need to check the plugs. They may be getting fouled. The more throttle you give her the more gas goes into the carb. If the plugs are bad then they are not igniting the fuel properly. Try letting the bike warm up and slowly rolling on. If it cuts out then restart it a roll on to about 3500 rpms then try and wack it past 4000 rpms. If it bogs and dies then you are looking at bad plugs or your carb need retuning. Now I know I have named a couple different possible problems but hopefully it narrows it down a little. If all else false take her to a shop.