The original wiring harnesses are 30+ years old. The insulation cracks, grounds corrode, and the tiny fusible links blow. Many owners simply re-wire the entire tractor with a universal 12V automotive harness and marine-grade switches.
It is not a tractor for the faint of heart. It is a tractor for the who respects simplicity, reliability, and the charm of a machine from an era when tractors were built to be repaired, not replaced.
– These tractors are legendarily tough if maintained.