Gentlemen, thank you.

That "Fancy Module" p/n exactly matches the p/n for the TSM (Turn Signal Module) that was originally suspect, and that my Indy first found reference to.
He said that he believed that this would be the problem component and that he also believed that it would be mounted on the left side of the frame near the fork tube.
A quick inspection of that area revealed the rusty but empty threaded stud protruding from that area.

This set him back a bit and he then also gave me a flasher unit with the instructions to bring back anything not used.

Once home I pulled the headlight housing and did not see anything in there, and next pulled the instrument cluster saw the flasher and managed to pull it out between the gap allowed by the still connected by wiring instrument cluster.I did not see anything that looked like the TSM in hand with the view available to me.

My road test with the new flasher yielded a still erratic acting turn signals.

Now with the information given by you all I did some further digging in my manuals and see that perhaps the TSM is the correct suspect component, and that I had better do some deeper digging into the innards of my instrument cluster to see where it is buried in there. I did not see it in my initial search, but the view between the still connected instrument cluster and housing innards was hampered by too little space. I'll just have to bite the bullet and dig deeper.

It's still raining and I must do my work outside in my driveway so I'll report back in after I get to this task once the rain stops.

Again, thanks to all for the guidance.
With all that you have offered, supplemented with info from my manuals I am sure that it is just a matter of me digging in far enough to find where the TSM is buried and to replace it.

Yup Graham, expensive. About $160 (246 GBP?) + the new flasher, hopefully money and me doing enough digging will solve the problem.

I'm guessing that I will need to unscrew the speedo cable and disconnect some connectors to allow better access into the housing to find the TSM.

Wish that they would have left it on the side frame like my Indy believed.

I'd be done if so.

 

The genuine article is #68537-89G, TURN SIGNAL CANCELLER, priced at $150, which I am surprised to report is apparently still available and priced here in the UK at the same number of UKP, plus taxes.

 

That's the one, now I just have to find out where they tucked it.

Isn't the conversion from $ to pound about .65?
Sound like a bargain to me, maybe you should get a spare.

 

Does your bike have a dash? Look under there.

 

You're right about the conversion, but applied it the wrong ways around earlier! The dollar is around .65 of a UK pound, so $160 is approx Ł105, which means the price I mentioned is far from a bargain!

My module is strapped to the right-hand fork leg, tucked under the headlamp area and is black plastic and roughly the size of a packet of cigarettes (I don't smoke, so don't take that too literally!).

 

Actually, I should have realized that the conversion factor was done wrong.

I'll plead tired.

 

I looked under the dash and found the flasher, but I did not disconnect the gauges so access was limited.

I'll poke around to see which entry point (Headlamp opening, dash top removal, perhaps from the rear of the dash opening) makes the most sense to find/replace this unit.

Thanks all.

 

Sorry it took so long to get back to report in. I've only had bits and pieces of open times these past few days, only long enough to attack what I believed to be the problem, only to find that this wasn't it, taking me back to ground 0.

To cut to the chase, the ground strap from the motor to the frame was loose.

A better mechanic/electrician would no doubt have sorted this out sooner but enough goofy feedback occurred to finally get into my thick skull that I should switch from clipping my test ground lead to frame mounted spots rather than a fin on the cylinder.

Prior to this I could get directional function each time I clipped a component with my test cable attached, I would clean and apply dielectric grease and firmly secure my mounting bolts only to lose it.
At this point I just kept clipping further up stream along my mounting features to achieve function.

Only when I got smart and moved the clip on the motor to various frame mounted points and duplicated my problems did I get a clue.

I looked for a ground strap between the motor and the frame and found the problem.

Never occurred to me that grounding would go to the motor and then to the frame instead of the reverse.

And I never lost lighting, If they were dimmer it wasn't apparent in my day to day riding, even at night. Maybe I was making enough contact for that, but not enough for the blinking action?

But bottom line, motor to frame ground was loose.

 

I'm glad you got it sorted out.
I guess I'm lucky that my motor mounts directly to the frame!!!

 

Rubber Mount Baby!

It don't mean a thing unless you're shakin' that thing!