[CZroe]

Yeah. The FI service manual goes on and on about not running the pump more than three seconds without fuel and many of the test/inspection procedures tell you to expect it to turn off after it primes for three seconds. My guess its that it normally turns on for three seconds at a time to pressurize and only stays on longer when needed to maintain pressure under acceleration. If it can’t reach target pressure in three seconds maybe that’s when it throws up a low fuel light.

…but I dunno: then I’d also expect it to preserve the pump by turning off in a few seconds and the bike will stall. That doesn’t seem to be happening here and it would make the light useless! There must be some clever way to tell when it’s running low and turn off the pump before it burns itself out.