Heres hot to wire that 4 terminal Voltage Regulator::::::
NOOOOOOOOOOOOO the bottom one does NOT go to ground, its more likely the ARM terminal which wires to the ARM post on the Generator. See below
NOTE: YESSSSSSS the VR has to have a good solid electrical connection to frame/case/ground somewhere somehow for it to work. It could be via the mount screws/bolts or a jumper wire to the tractor frame or often the gennys case.
LOAD on VR feeds hot battery voltage up to the dash to power loads such as Lights and Ignition. often via it wiring to the BAT INPUT TERMINAL on light or ignition switches etc.
BAT on VR wires up to the Load (NOT battery/starter) side of the ammeter (if it has one). It has to evewntually get to the hot ungrounded battery post so it can charge it.
FLD on VR wires to the FLD post on the Generator
ARM on VR (often the one on bottom or side or all by itself on 4 terminal VR's) wires to the ARM post on the Generator
Be sure to Polarize the Generator prior to start up
Im NOT a MF guy so if I missed anything or messed hopefully other gents will add to this.
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