This is my solution to when my starter button/headlight cutoff totally disintegrated in the twist grip. The new Honda part is about $100.00. Of course, I didn't want to spend that much, so I ordered a used part out of a place in Oregon (Jeff's Cycles..don't EVER go there!) They sent me a broken part, worse than the one I have on the bike. and haven't returned my calls...36.00, no refund.. I reported them to the Federal Trade comission..
So a friend and I decided to become master fabricators.
We needed metal..found some old Aluminum Ice Cube trays...perfect! Spent another $28.00 on switches...Found the wires in the headlight rats nest, disconnected them from the grip wires in case I ever decide to go original (The bike IS 30 years old!)...then we built the "Dashboard" and mounted it under the instruments...painted with matte rustoleum, it doesn't look too bad! I then put a lighted toggle in the top of the headlight for the headlight. I actually think the headlight ia brighter now, and it stays on!
I spent almost as much as the new part, but at least My starter and healight work now!
