fuelling problem, VFR 400?

[majormadass]

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hey guys, i sorted my other problem out turns out in the end was the plugs, but still at least i cleaned the jets and carbs aswell :D and changed vacuum hose, now got another small problem as i was putting bike back together noticed my throttle cable was twisted, and looks buggered, and i test rode it, in 1st and 2nd gear its fine can get to 16k revs but in all the other gears it wont go over 8000 rpm and i havent a clue what wrong any ideas? some people have suggested its a big fueling issue, which i think it is to so if anyone has any ideas on what it is or what i can do be much appreciated