Essential Wiring on the 135

The wiring is really bad...burnt ones, ones hanging not connected, others tied together poorly along the run, bundles of all the same type and color wire wrapped in electrical tape with unknown origins and destinations, etc....and I'm pretty ignorant about electicals and can't trust that what I've got is right...even if it works. Some things work and some don't.

What I want to do is scrap all the old wiring and start over. I intend to do this in a step by step process. First the essentials (making it run), then the gauges (when I replace later) and finally the lights.

So help from you electrical genius out there please. I have wiring diagrams from the service manual and Big Dean. My problem is that they are all 'schematic' in nature. I need help 'really' understanding what wire goes to what post... and the schematics don't show this.

The ignition switch has a central post and 3 surrounding posts. What wires of what gauge leave the ignition and where to they go...specifically?

Are there any wires leaving the regulator that are supposed to branch? If so, where and to where?

My voltage regulator has 4 slots.
What wires of what gauge leave the ignition and where to they go...specifically?

Are there any wires leaving the regulator that are supposed to branch? If so, where and to where?

My alternator has 3 connections. One with a plastic clip on the back central between two others. There is a post on the left (from rear perspective) with a wire attached and another post with a rubber hooded wire attached at the right.
Where do the 3 wires come from?

Finally, is there a wire-color scheme that is appropriate or worthwhile to consider to make reference later easy?

Your help in this matter will be MOST appreciated. It is the part of this project I'm MOST intimidated about....

Thanks for the hand holding,

Bill

For instance, my ignition switch has 4 posts on the back three of which are in use and one with 2 wires attached. So it doesn't correspond well with the diagram. Also, my voltage reg. has no markings and has more that 4 wires emerging...perhaps some of those replace what are apparently wires that lead from the #2 wire to coil and solenoid (I'm assuming the DOT is actually a junction). I also assume that the 3 red wires going to the solenoid are all going to the main/large terminal and that the yellow coming from the safety switch goes to the "S" terminal of the solenoid (though this is not labeled). Does the other solenoid terminal go to the starter?

Also, no wire gauges are specified and with the 'crap' that's currently on my tractor, I need some guidance.

For instance, also, I have a wire that goes to my coil from the wire illustrated leading from the "F" wire (as it nears the alternator)...just attached in a spot where the insulation has been removed and the attachment via wire twisting is covered with electrical tape....

Anyway, I don't wish to whine, sorry. Just feeling a little overwhelmed with the mess I need to straighten out and not having the knowledge to do it. I have been reading 'the basics' of wiring for automotive and I think I'm getting a picture that is somewhat trasferrable to the tractor.

bd

bd