So, how’s this for an answer.
You’re gonna have to size your electric fuel pump. I’m not gonna do that for you. David Kirk sells one for the K series but that might be too small, I don’t know. Maybe Leadslingingdaddy will chime in.
Identify which wire coming out of your ignition switch will provide you with B+ both during start and run. Splice into this wire with a new 16 awg wire. Do this neatly! This will be your low amp trigger wire.
Get yourself a Bosch style relay. Amp rating will be a function of your electric fuel pump rating. 20 amp will prolly be fine but check this. Find a suitable mounting location on your machine.
Run your new trigger wire to terminal 85. See the diagram below.
Take another 16 awg wire and run it from terminal 86 to a convenient ground.
Now get yourself a fuse holder and some 12 awg wire. You’re gonna make your high amp feed. One end of this wire will be connected to the positive terminal of your battery. Some would now tell you to connect the other end to terminal 30 of the relay, this is OK. You can do that, but if you have a 5 pin relay, you will have a terminal 87a. And, when the coil in the relay is at rest (no power applied) 87a will be live and could be a hazard. The other way to do it is to run your high amp feed to terminal 87 then run another 12 awg wire from terminal 30 to the + side of the electric fuel pump.
Connect the negative side of the fuel pump wiring to a convenient ground.
Plumb the pump.
Add a filter.
How that?
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