not very because boats can be any size and i dont know what a you-boat is
check the fudes check headlights for power then check light switch
dont know dont care
you dont
my headlights work but my taillights and dash light dont work whats wrong
one of two things, BAD EARTH, or Relay switch.
i dont have a clue
i dont knw
Dont go to this
knowing who "they" are and and which boats make it easier to answer. in my area they dont use them because the water is frozen.
dont know boats
check the fuse on the fuse box, the bulbs,or the connections.