Just picked up a Kodiac 400 for my Dad and the headlights are driving me crazy. On low beam I get left side low and right side on high beam. When I switch to high beam left side is high beam and right side is low beam. Check the bulbs and they are in correctly. Can anyone assist?

Thanks

 

Now the headlight' was another sight
We had two on the left and one on the right
But when we pulled out the switch all three of 'em come on.

One piece at a time, Johnny Cash