I've been running 6v starter motors on 12v for decades without issue. Helps to have the higher cranking rpm too. Just don't crank it to death. It's a little harder on the drive spring but I haven't had any issue there either.
I have a D2 with a electric start pony. I dont keep batteries in everything because I am cheap. It starts so easy with a rope its not worth the effort to carry a battery to it.
Here one can see on my 8T starter where a previous owner left the 6V starter but the rest of the system had been converted to 12V. They had painstakingly changed the generator to 12V but left the robust starter at 6V. You can see they used a 12V momentary relay. Like Old Magnet said they have been running 6V starters on 12V for awhile now.![]()
Haha. The place called and they want $500.00 to convert the starter to 12V. Hard pass, I'll just use the rope from now on.
Are you looking for a replacement 6V starter? and for what model tractor?
Only if it's 12V.