83 TCI test

[ChurchBuilder]

I have a TCI for a 1983 Venture. Can I plug this into my 84 to test it? I just want to know if my 83 TCI is any good. I'd like to get rid of it.

 

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[cowpuc]

I know its possible but thinking a guru like @Venturous Randy or @BongoBob or @Flyinfool will have to answer that to tell ya whats gotta be done to test it though..

[bongobobny]

Yes, what you have to do is switch where the "Boost sensor" gets it's vacuum from, on '83 it is carb vacuum, on '84 up it is manifold vacuum. That being said, to just test if the '83 is working or not, you can simply just plug it in and see if the bike starts and rev's up reasonably ok. At idle it should run smooth, or about as smooth as to be expected. The main point is if the unit IS good, or at least not totally FUBAR the bike should start and run. Unfortunately due to the advance being 180 degrees out of phase the bike will not accelerate very well, and unfortunately I'm not sure where you would get the proper vacuum from on the '84, on the '84 it comes from the "intake manifold" or the carb bot as it is referred to... Maybe someone else has that answer, never owned an '83, just know about the backwards vacuum signal even though it is the same boost sensor on both years, the TCI advance circuitry is inverted from the 83 and the 84...

[ChurchBuilder]

I'll give it a try and let you know

 

 

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[Yammer Dan]

I'm thinking I ran a 83 on my 84 for a while but for the life of me cain't remember what I had to do to do it.

[Venturous Randy]

I'm thinking I ran a 83 on my 84 for a while but for the life of me cain't remember what I had to do to do it.

Did you swap the carbs over too, to get the correct vacuum pickup, or did you just run it with the boost sensor not hooked up?

Randy

[Yammer Dan]

I did a carb swap on it but thinking I moved vacuum port someway??

[ChurchBuilder]

I plugged the 83 TCI into my 84 and it started right up. I didn't ride with it plugged in but it idled fine.

I'll try riding this weekend.

 

 

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[bongobobny]

Then I'm thinking you have a good '83 TCI!!