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  #1  
Old 07-17-2023, 07:42 AM
ihcub127 ihcub127 is offline
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Location: Maine
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Default 127 Wiring Help
Looking for some help. My son bought a 127 that needs a lot of work but he’s determined to get it running. The wiring was a mess so I bought him a wire harness from Brillman. We have it connected correctly (I think) but when we connect the negative to the battery and then go to connect the positive, it sparks like crazy. We also put a new ignition switch in it from Brillman. The tractor does not have the neutral safety or lights, so we taped those parts off on the harness.

Any ideas as to why it would do this? Thanks in advance!
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  #2  
Old 07-17-2023, 08:32 AM
IHCubCadet147's Avatar
IHCubCadet147 IHCubCadet147 is offline
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Always connect positive before negative, and when disconnecting, remove negative first.
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125, 126, 147, 129, 149 x 2, 1450, 882, 1810, 1320, 1440, 2135, 2 129’s for parts/project, 1950 Farmall Cub
38" LT mower deck, 4 42" triangle mower decks, 2 44A mower decks, 2 50C mower decks, 42” GT deck, 3 42" snow/dirt blades, 42" landscape rake, #4 cart
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  #3  
Old 07-17-2023, 08:47 AM
ihcub127 ihcub127 is offline
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Quote:
Originally Posted by IHCubCadet147 View Post
Always connect positive before negative, and when disconnecting, remove negative first.
Thank you. I tried that and when I went to connect the negative (while the positive was already connected) it sparked that way too. Is there any chance you could post detailed pictures of your 126 wiring? That would be a huge help. The wiring diagram that came with the harness is slightly different than one I found online, so I want to make sure the wiring is correct.
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  #4  
Old 07-17-2023, 09:04 AM
finsruskw finsruskw is offline
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Something somewhere is shorting to ground.
Time to break out the ohmmeter and do some tracing to find out where before it's too late and you ruin something.
This "new" ignition switch comes to mind here.
Is it indeed a correct switch for this application?
IH-607736-c3

"does not have the neutral safety"
As in missing or non operable?
That should be replaced as well.
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  #5  
Old 07-17-2023, 09:46 AM
ihcub127 ihcub127 is offline
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Quote:
Originally Posted by finsruskw View Post
Something somewhere is shorting to ground.
Time to break out the ohmmeter and do some tracing to find out where before it's too late and you ruin something.
This "new" ignition switch comes to mind here.
Is it indeed a correct switch for this application?
IH-607736-c3

"does not have the neutral safety"
As in missing or non operable?
That should be replaced as well.

Thank you. It’s missing from the tractor. I will look for a new one.
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  #6  
Old 07-17-2023, 10:57 AM
R Bedell R Bedell is offline
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Quote:
We also put a new ignition switch in it from Brillman
What was the switch they sent you ???

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[B]Roland Bedell[/B]

CC Models: 100, 105, 1450, 782, (2) 784, & 2072

[SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1:
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  #7  
Old 07-17-2023, 12:21 PM
ihcub127 ihcub127 is offline
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Quote:
Originally Posted by R Bedell View Post
What was the switch they sent you ???
This is what I bought.

https://brillman.com/product/ihc-oem...on-key-switch/
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  #8  
Old 07-17-2023, 12:25 PM
ihcub127 ihcub127 is offline
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Join Date: Jul 2023
Location: Maine
Posts: 6
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Quote:
Originally Posted by finsruskw View Post
Something somewhere is shorting to ground.
Time to break out the ohmmeter and do some tracing to find out where before it's too late and you ruin something.
This "new" ignition switch comes to mind here.
Is it indeed a correct switch for this application?
IH-607736-c3

"does not have the neutral safety"
As in missing or non operable?
That should be replaced as well.
Is this the correct neutral safety switch?

https://brillman.com/product/neutral...y-push-switch/
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  #9  
Old 07-17-2023, 12:36 PM
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ironman ironman is offline
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Does your voltage regulator have only three lugs on one one side or does it have three lugs on one side and a fourth lug on the underneath (bottom)?
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  #10  
Old 07-17-2023, 12:53 PM
R Bedell R Bedell is offline
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Quote:
This is what I bought.
NOT a Cub Cadet switch, but it can work.

Wire as follows:

BAT = Green Wire
IGN = Black Wire
ST = Orange Wire
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CC Models: 100, 105, 1450, 782, (2) 784, & 2072

[SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1:
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