A while back I put LED headlight bulbs in my BX2230, and while they are a lot brighter than the originals, the electric fuel pump is on the same circuit and they would flash like strobe lights before the engine started, and still pulsed with it running. Looking at the wiring diagram, the lights and the fuel pump are on the same circuit and same fuse, causing the problem.
I have a bunch of the common 12 volt automotive relays, so I decided to wire up a separate circuit to power the lights.
I have extra terminals that go in the fuse block, so I ran a 14 ga. wire from the positive battery post to the fuse block and one from the other fuse terminal to the relay common terminal. Since the headlights are all that is on that circuit I put in a 10 amp fuse. Then I ran a wire from one of the coil terminals on the relay to the negative battery post and a wire from the other relay coil terminal to the terminal on the headlight switch where the wire to the lights was attached. Then the wire to the lights was attached to the normally open relay terminal, and it was done. I secured everything with some tyraps and put the batter cover back on.
Now, the headlights are solid on with no hint of pulsing with the engine stopped or running.