This could be the circuit breaker in the head light switch. please look in to doing the head light relay set up. http://www.madelectrical.com/electricaltech/brighter-headlights.shtml
and the amp bypass http://www.madelectrical.com/electricaltech/amp-gauges.shtml

I did the amp bypass on my Bee. the head light relay was done on my truck the Bee is next.

Joe