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Old 12-10-2006, 10:11 PM
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Captain Scott Captain Scott is offline
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Join Date: Apr 2005
Location: Coos Bay Oregon
Posts: 90
Hey Gary,

Was your coil (-) tied to ground before you made the conversion? If I read my 107 schematics right, the points wire was tied to the tach-sense wire. And the coil (-) went to ground. But I dont think that is how it was rigged before I pulled wires out and started the Pert install. And of course now I wish I had really had documented the pre-install condition... so I cannot prove it.

My tach green wire shows 12v(+) so that seems to be why hooking the Pert black (per their tech support guy) didn't allow her to fire at all. The tach sense wire seems to want to see the breaking of the ground circuit that the points did.

So I am left trying to figure out how to send 12+ to the Pert red wire and also send a breaking ground signal to the Pert black (and therefore to the ICU green wire) to pick up the RPM cycle.

How far off am I???

Quote:
Originally Posted by GaryF View Post
I attached my tach to the -ve side of the coil primary after the conversion, assuming your using and -ve switch coil.
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