6V things take higher current than 12V, which is why 6V wiring is heavier gauge, double the voltage and you effectively double the current .... the starter motor spins like crazy on 12V, and works fine ... for the minute or so it takes to start the engine ... try running the 6V starter on 12V for an hour wink

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics