hey guys im new to this forum n i wanted to share my problem see if someone has any ideas or somethin to help me figure this out. i bought a 02 f4I n since i had it i noticed that the bike wouldnt rev pass 10k-11k, when i rode it it felt fine till i reached 11k then it would feel almost like i let go the throttle but the throttle was open all the way... it feels likes it loses spark or the fuel cuts off it just comepletely cuts off the power. so id have to let go the throttle everytime it does that n let the rpms drop then throttle again n itll be like nothin ever happened but everytime i got the rpms high itll do the same thing no matter wat gear im on. i drove it like that for about a week n now started doin it around 4-6k rpm. itll start right up n idle fine but once i rev it or ride it n it reaches those rpms it really feels like it just cuts off the power.. i need help please these beautiful days r goin by n im at home while my friends r out riding! i bought a set of spark plugs n im replacin them thursday but i doubt its gonna do much of a diff... please any idea is appreciated... idk if it matters but i have that noise/rattle comin from the timing chain so when i do the pluggs imma tension the tensioner more i heard it fixes thhat noise.
gabe

 

Sounds like a fuel delivery problem, or a partial blockage in the petcock.
Clean out your injector bodies, and fuel filters.
Maybe chuck some seafoam in the tank and see if that'll help at all.

It could also be your coils breaking down, but I'd start with the fuel..........

 

yeah but wouldnt that cause the bike to struggle when im tryin to start it..? n where is the fuel filter located? help!

 

Might be a bad FPR as well.

 

Yeah that things causes a lot of problems!

 

how do i tell if its bad. or shall i replace it anyway it has 17k i got the plugs today n im puttin them in tom