ok so i just bought a cbr 600f2 ive been riding it for 3 weeks.. i love it, the dude was telling me about all of the raceparts he had done to it. it has aftermarket carbs. i dont remember what kind of carb he called it but he said it used no vacume and there is no choke with it. i noticed that it almost wants to stall out doing anything under 3000 rpm. would i be better off with stock carbs? and i also noticed that they might have forgot a rubber washer or sonething when they put the tank on because if i push on it. it will slighlty rock from side to side.. does anyone have a pic of there tank whrre it bolts to the frame? (by the handle bars) any info if appreciated thanks

 

Yup there is supposed to be a rubber where it bolts on the front and back.
And thats just the nature of those carbs, their meant for high rpm,s.