A couple of months ago my son crashed my quad and broke out the entire headlamp assembly. I never seen any of the pieces and never really looked at the back of the glass assembly until I went to install the new one. There is an extra hole molded into the back of the glass along side where the bulb installs, is there supposed to be anything in that hole? Is it supposed to be wide open or plugged with something? The shop manual doesn't show it or say anything about it.

Good question!Ihave no idea,no plug in mine,I get water in there once in awile.I have always wondered if the Bomb borrowed there light from a street bike,and there not cheap broke one myself $90.00 geese

I plugged mine quite some time ago , no adverse affects and NO MORE WATER!