couldnt help it... just had to stuff around and turn the idle dial didnt I! My GPX250 was idling just a bit lower than I wanted it to. On the odd ocassion it would just cut out when at lights etc.. So I twisted it only the slightest amount to turn it up, which it has but there is a problem.... I take off, all good, and then when stopping again with the clutch in or in neautral its sits revving at 3 to 4 thousands RPM for at about 10 to 15 seconds before it slowly slowly slowly gets itself back to the 1300rpm mark. It has never done that before, ever... If I can be bothered I will put it in gear and with the front brake on and let the clutch out till it almost stalls, and then re engage the clutch. This drops the revs bck to normal idle and its all ok untill the next time I take off and we go through the whole thing again. I have just had the bike serviced, so am pretty sure I could take it back and get them to fiddle/fix it etc, but I cant be stuffed for the dropping it off, picking it up, waiting for mechanic etc. If I need to I will, but will it fix itself over time or is there anything I can do to tighten/loosen something or whatever to stop it from doing this?