Pre-2007 Ski-Doo Mini-Z snowmobiles that burn out the headlight and/or tail light prematurely can now upgrade to the 2007 Mini-Z technology. Ski-Doo technicians have discovered some of the Honda engines used in the Mini-Z can produce a higher than expected AC output to the headlights.
Have your dealer order and install kit #515 176 489 (which is standard on 2007 Mini-Zs) to resolve this issue. It adds in parallel an additional load to the lighting circuit to ensure the voltage to the headlights and tail lamp does not exceed 14 volts.