Before electric starters became widespread, operating an old tractor required hand-cranking the flywheel or front crankshaft. This manual process demanded careful technique to avoid engine backfires, which could jerk the iron crank handle and cause severe wrist injuries. Despite the physical effort required, these hand-crank systems provided reliable starting capability without depend... https://www.aniarticles.com/79179-what-is-your-old-tractor-actually-worth-complete-farmer-guide