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Definitive way to wire an electric fuel pump for a Pre EFI Bullnose


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Thanks Gary, but just to be sure before I start cutting the harness;

How I’m understanding your description would therefore leave both the W/LB and the R/LB wires on the DSII side of C321 not connected to anything?

If that is the case, couldn’t I attach a new C321 male pigtail to the “I” and “S” terminals of the OPS and plug it into the ignition switch side (female) of C321?

The engine would never fire that way. You have to have power to the ignition module.

What I'm trying to say is to tap in at the points shown below, in this method:

How_To_Connect_Wires.jpg.51e5148d76323809396ca95c290f4b1e.jpg

Oil_Pressure_Switch_Wiring.thumb.jpg.a066be8820f9a288e15fe57af8de6a62.jpg

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The engine would never fire that way. You have to have power to the ignition module.

What I'm trying to say is to tap in at the points shown below, in this method:

Got it!

Thanks for the help. It might be a couple of weeks, but I will definitely report back once I receive all of my parts orders and get a chance to hook everything up.

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