If this is the wiring diagram it looks like no fuse? You might want to check the bulbs..
Thats diagram for his model. There's fuse on that diagram also.[/QUOTE
Yes I see the fuse, but for some reason I don't see one to the headlights.
Usually only one fuse on the whole mower, but if everything else is working, then the fuse should be fine, but it is usually near the battery. For the headlights, look at the wiring @ the hood hinge, and where they ground on the frame.