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IHCC 127 electrical. Dumber than I look

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Delbert White

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Oct 18, 2020
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Montana
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IHCC 100 Conan NoBrian
I've got a 127 that is giving me electrical anxiety

I'm not good with electrical so use small words please

This has been a slow, many year project and I'm trying to get ready for winter

Problem: When I connect the battery the S/G starts turning over, not at starting speed but persistent

What I've done: I ordered and installed a new wiring harness. I believe the problem existed before the rewiring, it was the original harness and had many places where insulation was long gone. I thought I was dealing with shorting between bare wires. Marginally displeased after I got all the wire ran and connected (I followed the schematic faithfully) and I connected the battery and the S/G starts to spin

I pulled the ignition switch out of the circuit. No change

The solenoid and VR are new, replaced last year. I tested the solenoid and it aggressively clicks when activated.

It makes no sense to me why this is happening. I'm in hopes that it is a stupid over sight

Please help, and apply as much ridicule as is needed to get to a solution.

In addition, I also have a IHCC 100 that I replaced the wire harness on before I replaced the 127 harness. The 100 runs really well, so I have had success with something
 
Last edited:

mgonitzke

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Wichita, KS
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Matt Gonitzke
You likely have the voltage regulator wired wrong. Make sure you have the correct wires going to the correct terminals. If it's a new one, the "GEN" terminal is likely on the back instead of on the side like the original one. If you have not replaced it, it is possible one set of contacts inside the regulator are stuck closed.
 

Delbert White

Active member
Joined
Oct 18, 2020
Messages
30
Location
Montana
displayname
IHCC 100 Conan NoBrian
Here's pictures of the VR and the wiring

In the process of removing wires to take pictures of the posts I lost the magic screw in the dirt

I included pictures of my GT's

I'll get current pictures when I get back to chasing the electrical Issue on the 127

And I have already turned the hood ornament on the 100
 

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CӞ44

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Jul 24, 2022
Messages
108
Location
Kansas
displayname
Here's pictures of the VR and the wiring

In the process of removing wires to take pictures of the posts I lost the magic screw in the dirt

I included pictures of my GT's

I'll get current pictures when I get back to chasing the electrical Issue on the 127

And I have already turned the hood ornament on the 100
I bet the lights on that 100 are bright!
I’m lucky to have scored an OEM headlight assembly for my 100, need to gittum installed before snow season.
Good luck with the wiring issue. 🤞🏼🚜💨
 

mgonitzke

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Messages
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Location
Wichita, KS
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Matt Gonitzke
I think I can see your problem...you should only have 3 wires going to the voltage regulator. BAT, GEN, and F. The GEN terminal is on the back; the other two are on the side. The L terminal is not used.
 

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