Been using carb cleaner as starting fluid for years w/o problems. I realize anything conducive that can bridge the power/solinoid cables will work. But when your by yourself on the side of a highway, your not gonna crawl under, bump it, crawl out, check the damper over and over. It'd be easier to bump it with the key. Which poses quite a problem, how would I ever know if Im on number one cyl. Idk spark was nice a blue, not white or yellow.