MZ/MuZ Riders

h1 could someone let me how to wire a trx 850 headlight in place of twin headlight do I need a relay if so which one?
the way I wire is 2black wire together [common ]white wire one side of bulb yellow other side dipped on then when I put main on dipped stays on and also headlight warning light what have I dun wrong help please[ traveller ]

I didn't use a relay, just retasked one set of the existing headlamp wiring. It obviously needs a different socket - I just used one off one of my spare MZ two strokes.

cheers