Michael A. Terrell wrote:
When I was a kid my dad had a Ford station wagon. It went through
starters like crazy, and was hard to start. He went to a junkyard and
bought a 6 volt starter and battery cables for a few bucks. He put them
in the 12 volt Ford station wagon. After that, it only took one try to
start it because it turned over much faster.

I've heard this is a common hack for Wankel engine conversions on VW
Beetles. A stock VW starter won't crank a Wankel fast enough to fire.
But if you run a 6 volt starter off 12 volts, it will.