[Kainam]

Now there's a thought!!!
The bike is a Carb model. this may be the only way out since there isnt a Harley dealership in my country!
No one has the equipment to sync the speedo with the ECM.

Nobody does.

Otherwise it would be simple to commit odometer fraud.

 

[Kainam]

Another hurdle you face is changing a speedometer requires use of a H.D. digital tech to synchronize the different speedo to the ECM. Another protection measure so speedometer readings can't be easily changed. I feel your frustration, but you can overcome these "tests".

Can't be done. Once a speedometer is married to a bike, that's it. No swapping between bikes after that.

Only way around it is to buy a new speedometer, and it will need to be programmed by the factory with the correct miles.

 

[Breeze3at]

Can't be done. Once a speedometer is married to a bike, that's it. No swapping between bikes after that.

Only way around it is to buy a new speedometer, and it will need to be programmed by the factory with the correct miles.

My comment "you can overcome these tests", was not for getting the speedo working, but to his overcoming all of the roadblocks he's encountering on this build.

 

[sarifsayeed]

Also I'm assuming your bike is a HDI model, that's what I've been checking part numbers on.

Still at it! Looking for a way around the TSSM and the associated gizmo's.
An idea was floated by someone to remove the TSSM, map the Magnetic coil, and add a CDI.
While my electrical knowhow is limited, to the basics, I am looking for the pro's and cons of going ahead with the CDI idea, We have limited resources, not having a dealership is the biggest handicap.
The parts cannot be programmed or synchronized, any new parts required have to be shipped from the USA, at a great cost,
Does anyone have any ideas on the CDI installation, and what may be the drawbacks?

 

[SCHMIDTY]

If you can find a CDI ignition that uses a crank trigger signal I suppose that would work. In that case you could use an aftermarket turn signal module for the lights function.
Harley TC ECMs and ICMs use crank trigger (CKP) signals for ignition timing among other things. CDIs use a pickup that uses the cam for timing. The crankshaft and camshafts turn at different speeds.
I'm unsure if any company sells a CDI that uses the CKP sensor signals.

 

[sarifsayeed]

Thanks for your response.
The CDI is still under consideration, since we are still trying to find a way around it without mutilating the entire system.
The advice on from this forum has been a great help and morale booster.
At least there are all of you out there to guide me through this phase of resurrecting the bike.
Thanks.

 

[sarifsayeed]

Another hurdle you face is changing a speedometer requires use of a H.D. digital tech to synchronize the different speedo to the ECM. Another protection measure so speedometer readings can't be easily changed. I feel your frustration, but you can overcome these "tests".

I am still at it, without any progress to speak of. There are different shades of "Experts" who have had a look at the bike but have yet to offer a solution that dosent scare me.
Now, if I were to take your advice and go for a new Speedo, ECM, and a TSM/TSSM how do I go about it?
No dealership here, Will appreciate all the advice I can get. Atleast I want to do the required homework and have a good idea at hand in case we choose to go that way. Albeit the cost.

 

[Breeze3at]

^^^^^^^^^^^^ I have no solutions to modern interface problems, I only remember reading of all of the pitfalls that can/will/do occur. When I rebuilt my '68 Shovelhead I ended up with about 4 or 6 wires total. Ign./horn/lights/stop.