Gray wire -    No connection
Yellow wire -  trigger for automotive type tachometer (if used)

Tracy

Sent from my iPad

> On May 10, 2014, at 19:11, "Joseph Berki" <flyrotary@lancaironline.net> wrote:
>
> Per Tracy’s EC4 manual the trailing igniters the brown, red and white wires are accounted for.
> Does anyone know where the yellow and gray wires get connected to?
> Thanks for any help.
>
> Joe Berki
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