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M.unit to coils 21 Jun 2022 09:24 #869167

  • F64
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  • 81-KZ440D2
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I couldn't find an exact schematic for your bike, but found one for a 83 zx750A1.
That reg/rec has the same wire colors.

White goes to always on +12V.

Brown/white goes to switched +12V
This wire may operate as a voltage sense wire. On the stock system on a 83zx750 it ties into the brake light switch, the horn, and the turn signal relay.
You are eliminating these paths with the m-unit. So you may need to wire it to the light circuit or one of the aux outputs on the m-unit. Someone else may be able to clarify this.

black/yellow goes to ground

 
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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Last edit: by F64.

M.unit to coils 21 Jun 2022 09:30 #869168

  • Jai88
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Thanks F64 that’s brilliant. I’ll probably run the brown white from Aux and see how I get on

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