Originally Posted by
Suzuki
Been looking at the wiring diagram for my cbr250r mc19. noticed that the fuel cut relay or fuel pump relay has four wires coming out of it. black/blue wire goes to fuel pump, blue/yellow wire goes to spark unit or CDI unit and ignition coil for cylinder 2 and 3, black wire goes to fuse box and kill switch, yellow/ blue goes to spark unit or CDI unit and ignition coil for cylinder 1 and 4. Question is why is there wires going from the relay to the spark unit and ignition coils?
I don't know the particulars on your bike ... but my FJ1200 has a reserve switch that is NOT connected to the fuel tank in any way, shape, or form. It is connected to a coil, and when the low fuel point is reached ... it cuts out two plugs. (not always a nice thing)
My bike also has a low fuel waning light. I keep the bike permanently on reserve and rely solely on the low fuel light. NO issues so far. (80,000 km's of no issues)
I suspect your bike may be wired similar ...
When life throws you a curve ... Lean into it ...
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