I just wanna say that if your 6 volt truck won't start fairly easy in -15 degree weather, there's something wrong with something and it ISN'T the fact that you're running a 6V system.
Points, plugs, wires, cap, rotor, coil fuel system, carb.. check all that stuff.
Sitting face in the wind with -30+ below wind chill and -15 degree ambient temp my '46 1/2 ton pops right off with a 6V battery that I bought a year ago from my local farm store.
Yea, it dosen't turn over nearly as fast as it does when it's 80 outside, but within 3 revolutions she's running.. and my truck is a piece of crap.
So if you have to crank and crank, [censored] with the choke, slaughter a chicken on the hood and recite some sort of swahilli witch doctor chant while wearing a straw skirt to get your truck to start, your problem can't possibly be that it's because it's a 6V system.. it's because it's a 6V system that isn't properly maintained.
