Hiya,
My 08 XT660Z has just started ticking over at 2000 RPM. The bike is used almost everyday, I haven't made any changes recently and it's a good few thou off its next service. The revs aren't always returning to tick over either. After a blip of the throttle the revs lag a little before going back to 2000. Also the tickover went up to 3000 for a few seconds and then back to 1500 and then back to 2000 without any input from myself. Can anyone offer any advice?

Thanks in advance.

Jay