I tried covering mine with petscreen and glued it around the edges. After about 2 minutes of running the headlight lens will start to melt because it can't get rid or enough heat, so off it came. I just ordered a set of blackout covers that are supposed to velcro on, this is supposed to leave enough room between the lens and the cover for heat to escape. I can't remember his name, but go on ebay, go to snowmobile parts and acc. Search for headlight covers and you should find them right away.