[Lionel]

Can anyone here help an electrical idiot? I have a case 446 that I mounted the vanguard 18 from small engine warehouse (who are no help what so ever with tech support) and I have zero wiring on the tractor. Their instructions aren't helpful, I have a ground from the battery to the motor mount, a positive cable running from the battery to the solenoid and from the solenoid to the starter. I know I have to run a wire from the solenoid to somewhere on the key switch but no idea where, I picked up a new key switch that has the letters
On the back (no diagram in the box). The motor has a red and a purple wire hanging off the side, I do see a relay wired in if that helps. So if someone has some crayons and can draw me a picture i might be able to understand. I'm going to post this on the main page but this thread is the best information I've found anywhere.

Is this the motor you purchased?

https://www.smallenginewarehouse.com/Repower-Old-Equipment/Case-446-Category

 

[Lionel]

Lets beat this up for a bit,,

The only change I see to this diagram, would be the solenoid. Notice the solenoid is grounded to frame? Yours should not be that type. Yours should have 2 big posts, and 2 little posts. Lets pretend the ground on the solenoid is the 2nd little post,, that post should be connected the safety side of the clutch lever,, so that when the clutch lever is engaged, it "breaks the ground" thereby causing the motor, via the solenoid, not to start.

Let others correct what they see wrong with this schematic,,

If it was me, I'd work my way back on the motor.
Starter has what connected to it? Red wire? Which you've already connected
Rectifier, has what connected to it? Purple wire? I assume you have an owners manual that might help here?

What stops the motor? isn't it via the key switch, going to ground when turned off?
I do believe, the markings on this key switch, are the same as the ones you posted on another post? Seems to me to match anyways,

Here's a picture I pilfered from one of Bob's post, including his post,, (((Mackie is his user ID, and it would appear he has done several of these,, so might be worth a PM to Bob to attarct his attention?))))
I believe, he's talking about how to turn the motor off..
((Some info about original Vanguard powered Ingersoll tractors:
Vanguard engines as are all newer designed small engines produce their own spark just by turning them over. This means that to shut the engine off, the primary winding of the coil needs to be grounded to stop them from producing spark. The key switch has a terminal on it that when the key switch is turned to the off position it is grounded. This wire is in the connector that is plugged onto the rear of the key switch and in the wiring harness and comes out and connects to a terminal on the blower housing on the starter motor side of the engine, see the pic.






Anyways, good to start as a discussion point.