So I have noticed that after taking the old 900 out on long drives in warm temps, around 80 degrees, it seems that it wants to idle at 1000 rpm to 1200 rpm. It wont stop doing it until it cools down significantly. Maybe 30min of sitting. I cannot seem to pinpoint what is causing it. My fuel screw is out 2.5 turns, idle is adjusted properly, plenty of slack in the throttle cable. ??? any help would be awesome. 16v, fi, n/a, 900s, 1986.