I was riding home Saturday night when my bike started to idle really low and I had to keep adding throttle so that it didn't stall. Then when I took off at the next set of lights there was a massive lag before the throttle kicked in. I got it home just before it stalled. Tried to start it yesterday and it made a big clunk sound when it went to tick over. Wouldn't start, but kept trying. I noticed some petrol on the ground too just under the tank. Just a small patch. Just started it then and it sounded alright for about a minute then started to idle really low again. I can really smell petrol now, not sure if it is running through exhaust? Anyway I rang a few places and they do not think it is going to be something that is easy to fix in short time. That would be okay, however I have a track day booked for this coming Monday. Please tell me this can be fixed easily, and quickly. Any ideas? Oh sorry, it is a 2002 zzr-250.