do you have the wiring schematic? from the one here I see:
one wire from the (+) terminal to the starter switch
one wire from (+) to the fuse box [then to the horn]
one wire from the (-) terminal that splits [junction someplace, maybe directly on the ammeter] to: the lite sw, the regulator, the ign sw

that coil wire should come from the ign sw, a different terminal than the wire from the ammeter hooks to, if the coil wire hooks directly to the ammeter then the coil would be hot all the time

the wire for the turn signals is an add-on

you might have something on a wrong terminal somewhere [suspect coil to start], so you need to use the factory wiring diagram and trace the wires by their colors first, forget those numbers added by the harness maker, track the actual wire route and any intervening connections .... if all the existing wires go the correct places by the diagram, then the short checking starts

for short circuit testing one lead of the ohmeter to ground, the other to places being checked, any range will find a short, the lowest is usually used ... hope that's not all too confusing!

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 & Rust-a-holics Unanimous parking lot