I just purchased a 2002 f4i and it is running a bit funny. It will sit there and idle nice and pretty however, once it is given a bit of gas it starts to run funny: not so much rough, but the RPM's will go up and down at constant throttle. Once the RPM's are up, it goes away. I am thinking I will just take it to the dealership, just wanted to have an idea of what it might be in case it is something very easy. This is my first street bike and am very excited! It has a little under 22K miles. It does have 2-brothers exhaust...this might affect it? I didn't know what the bike would act like if the valves needed adjusted or if the throttle bodies needed sync'd. Any information would be greatly appreciated. I am also new to this site so I may be posting this in the wrong section?!?!?!