i recently purchased a 2000 banshee. i have ridden it a few times over the last month with no issues. i just noticed that after giving it some throttle and i let off, it seems to idle about 200-300 rpm too high. it does it for about 10 seconds then it drops down to normal idle. i just lubed the throttle cable and it didn't seem to do anything. i thought it may be an airleak, but wouldn't it idle high constantly and never drop down?i'll spray it down tomorrow night anyway to check for a leak. any other ideas on what it could be? BTW... it does run perfectly.