OK guys, 
I cannot get my flashers to work no matter what I try. What am I missing?!?? I've done a lot of googling and troubleshooting with no luck. I have never seen this bike together and functioning so I don't know what I am missing. See Video Link. Thank you!



 

The original flasher needs to be grounded.  Should be three wires as far as I remember.  You seem to be missing the ground wire?  Parts diagram shows a removable ground wire.  Bottom line is you need a solid ground to the flasher unit.  Bolting to the stud might not provide a good enough ground. 

I noticed you were careful not to touch the case of the flasher with power to it and it hanging in space...  you might get shocked if you did...  I know I have

(Something looks "off" about that flasher...  the way the case is too long maybe?  Almost looks like someone had it apart?  Is this the original flasher or something purchased or "rebuilt" recently?)

Most modern flashers do not have or need a ground wire...  three wire modern flashers definitely don't.  You could use a modern two-wire 6v flasher.

 

Thats what I wondered regarding the ground. I have another identical flasher that has the ground wire and grounded it with no luck. Same result. 

I have been shocked many times during is multi hour ordeal so yep I was careful not repeat that on video. 

Good eye, I have taken this flasher and my second flasher apart and made sure nothing was correded and the points were in good shape.  They both checked out. 

I was thinking about finding a modern 6V flasher to try. The frustrating thing is bench I bench tested the flasher relays they work as long as I have two bulbs hooked up. So close I can taste it because I know the flashers are good!

I can't comment on your bench test, never tried that. But if you're getting shocked then there's definitely a ground issue.

Ebay seller Pobit used to sell a good two-wire flasher. Doesn't look like he has any. There are several threads on here on finding one. Tons on ebay, Amazon sells them too. Auto parts stores probably have them too... I got them at Autozone, Pep Boys, and NAPA in the past.

Brown wire is battery in ("B"), Brown/White is out to flashers (L)

I think that is my next step is trying a modern 6v flasher. Thanks for the insight!

Could I be overlooking a ground somewhere on the wiring harness since I am getting shocked? I grounded the flasher directly to the battery and it still does the same thing. 

I think you have a problem with your flasher(s). I gave up on trying to make the originals work (if they don't work) a long time ago.

So now if I have an issue, I just replace with a modern two wire... Some of the Chinese ones are hit and miss... especially the ones that are "universal voltage". But there are good ones out there.

This has likely been said but first thing i'd do is bypass the relay by joining the two relay wires together & see if blinkers operate as light.
Ok being stupid now--then have a fast finger operating the blinker switch--.
Ok stupid over,--do the the bulb wattages match the relay that's written on relay--like 8watt x2+3 meaning two 8w plus one 3w in the tacho blinker warning bulb [or whever it is].
At 54 seconds i "think" you say ground is brown?? in the headlamp [not got my hearing aids on right now to sharpen it up--so maybe not].
Why earth the battery to the frame or is that how they were on that model.
Normaly earth into the loom black which then earths at the coil mount under tank.
I guess earth--is--earth wherever ya go on the frame but--be sure the loom earth is "earthing" so any black from blinker 'if you have them earthed' from each blinker mount--rear being rubber mounted, is finding earth through loom earth. Blinker colors to be sure are "Dark Green & Dark Brown". Blinger relay power is light brown & wire returning to the switch is lightbrown & white. That's all a 50 year guess.
I'll now whatch the rest of the vid which might negate all i've written lol.
Frustrating i know.

Ok that'll teach me to watch all the video first instead of being Mr Know-it-all.
So i think 'those' units need earthing throught the body/clamp or an earth wire to that' clamp' if using a ruberised mount.
BUT, it looks like the unit has been apart maybe to clean the points or adjust something in the tension spring thing, so thinking is it a possibility.
Can you dismantle it & watch it trying to work internaly & play with the tension or points gap.
Best plan is buy a new one but i know we all like to fix things & not give up easily.
What are the bulb wattages anyway out of curiosity. Curiosity killed the cat so they say--but be nice to know.

Thank you for the help gentleman! And RT325 you sir are a scholar! I figured it out yesterday. The flasher needs to be "earthed" from the frame of the flasher to the wiring harness. It is a a metal strap mount and I think they changed it later on in the 70s with a rubber mount. So I took a wire from the mounting bolt on the bottom of the battery tray and plugged it into a black wire on the wiring harness. Thanks again for the knowledge and you are correct on your wire colors! Brown for the common hot wire and brown with white stripe for the relay circuit. 

Here is the finished product!! So happy to be done with this restoration!

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