Hi all, I have noticed lately that when I take my hand off the throttle (e.g. coasting to a stop at a red light) there is a noise that I can best descibe as a scratching sound. It never happens when I am on the throttle only when I release it and so far as I can tell it is coming from in between my legs (i.e. engine). I thought that it might be engine backfiring (similar to on a car that is running rich) but having never heard it on a bike I'm not sure. It seems to go faster or slower fairly well in sync with the revs on the bike. I have also noticed that fuel efficiency has dropped a fair bit from about 215km a tank to about 190 or less. Any ideas? Any help would be greatly appreciated. Is it just in need of a service? I recently had it serviced but the sound pretty much started occuring soon after the service. If i need to take it back I will describe the problem specifically but thougth the first call would be you guys, the netrider community Thanks in advance!