yes, it should run until the coil or points fry ... OTOH, your other post says the starter won't turn it over, so there may be a whole list of other problems that could prevent it from running on any voltage .... you should start by determining why the starter isn't working

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