Motorbike as a BOV, help please.

[bigpaul]

a lot of the old 80s trail bikes had CDI ignition and you could run these without batteries, all you had to do was pick up the main wiring off the engine and you could still run lights and horn off it, but they would die if you didn't keep the engine revs up, after TSHTF you wont needs these so they can be discarded, even less weight to carry.