Decided I would try something to keep my cdi little cooler. Ran a 1/2" vinyl house, with a funnel tip, from the front to the cdi. Will draw fresh air straight on to the cdi. Also cut many holes in the rubber surround on the cdi. Don't know if this will help it from overheating and giving me weird tach readings but I thought I would try. Dealer already replaced the tach, but of course that did nothing. Just don't want to have to take it all the way back over there to have them try and diagnose even though I already know its the cdi. Wish I could afford the aftermarket brt cdi.