Electrical help/suggestions

[81xsproject]

I am ready to wire in the MS and the GM DIS and I need a power source for a relay that gets power when the bike is on run, but NOT start (ie not when cranking). thanXS

[DGXSER]

Hmmmm

Does it need power prior to hitting the starter? if not, then perhaps off the headlight power?

[renegade_xs11g]

Looking at the wiring diagram, you'll find power on 3 main wires
the red wire from the igintion (key) switch, for that matter you could probly
use the red wire from anywhere, but it looks like that carries power at all times when the key is on,
the r/y (red/yellow), also from key switch, cant remember if it carries voltage when cranking or not

the brown and the blue also carry power, but for lights
you'll also find power on R/W

[oseaghdha]

Latch off of the headlight circuit.
Everything else is always hot or hot when the key is on.

[randy]

81XS;

What I think you wrote was that you want a power source that will be live with key in ON pos, then will drop out when you hit the starter button?? Then come back live when you release the starter button??

If so, use a SPDT relay, wire it's coil in parallel with the starter solenoid and use the COMMON & NC contacts on the relay to switch your source. When you hit the starter, the relay will pull in and disconnect. Source your power from any brown circuit. Watch your amps draw, you may need to up the rating on the fuse in whatever circuit you use.

[John]

You could install an oil pressure switch that will open at very low psi, and that will kill power when cranking but it will stay off when running also. Is that what you want?

[81xsproject]

What about using one of the relays that has the 87a output? I could set it up so that the 'run' power came from the 87a pin and the relay was triggered off of the starter power. That way when the starter received power and the bike was cranking, the relay would disconnect the power from 87a and put it to 87 (which wouldn't need to go anywhere).

[randy]

Hey, why didn't I think of that?

[81xsproject]

I am guessing you did and I was just to dumb to know. I should have made it more clear that I am learning but still a little slow with electrical.