Scant help on this topic eh? Oh well, that is OK.
What I was really doing was getting some hands on experience in how to move the blue wire for the headlight to the empty space in the 10 connector that is always hot when the key is turned on. It is much easier to learn on a warm day at home in the yard, than on a cold wet night on the side of the road 50 miles from home.
slimvulcanrider and others, including myself, have often mentioned this as a quick emergency fix to get home if the headlight circuit loses power.
What I learned was that bridging the blue wire in the connector to the empty space beside it with a short 2" piece of solid 14 ga copper house wire bent over double, was easier than releasing the clip and moving the blue wire.
This procedure triggers the headlight circuit as if the engine had started and the sensor wire (brown one on the r/r I think?) was receiving current from the alternator. Removing the short wire bridge from the connector left the headlight burning with a properly functioning HL circuit.
This could help you determine if the HL circuit is good on a bike you are restoring even if the bike won`t currently start for some reason.
Alternatively if you are stuck on the side of the road some dark night with a recently discovered non working HL circuit, you could leave the wire bridge in place long enough to light the road and get you home.
Note here that you can substitute almost any type of wire for the piece of solid copper wire I used, as long as it is heavy enough to carry the current without melting. ie. 14 or even 16ga multistrand automotive wire, steel mechanics wire, even a heavy paper clip or ladies hair pin if that is all you have.
I have added some tools and repair supplies to my daily carry toolkit, including 6 or 8 feet of isulated 14 ga automotive wire and a couple of feet of solid 14ga copper wire salvage from the scrap pile of a recent house wiring project.
Hope this post encourages some less experienced wrenches to think about what potential problems you might be able to deal with while out on the road. Maybe more than you think with some planning and preparation.
1991 VN 750 -"Cosmic Lady
" or "Bad Girl
Purchased May 16, 2008
Approx.19,300km (12,000 miles)
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15
TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO.
Click on link.