Wisconsin S-7D Motor refusing to start

Okay, I think I have a handle on it now….

The points are shown in pic #36, bottom photo. They are the "switch" that turns the current on and off through the coil by grounding the - side of the coil, then breaking the ground path. That silver rod that comes out of the engine case should open and close the points as the engine turns. Watch it, and you'll see how the points open and close.

The - side of the coil should attach where you have the black clip lead. The condenser appears to be connected correctly: the wire should attach to the points lead/spring, which it appears to do, and the case of the condenser is grounded through its clamp. The wire should NOT be grounded. It should go to the connection for the points, as it seems to do in the picture.

Try this: turn the engine by hand so that the points are not closed (not touching each other). Connect the black lead in pic #36 to the - side of the coil. Turn the switch on. You should have B+ at the black lead. (If you don't, let me know. That's another issue we can correct.) With an INSULATED screwdriver, short across the points a few times. You might see a small spark at the screwdriver, but you should see a spark at the plug.

We're closing in - almost there!

This is a puzzler…One of the three is missing -
1) spark at the right time
2) enough compression
3) proper fuel mixture

You pretty much rule out the fuel when you spray into the carb, so that leaves #1 & #2.

I'm at a loss except to suggest that you approach this engine like you've not seen it before, and recheck everything as if you hadn't worked on it at all. Assume nothing.

I do have one suggestion - recheck the points gap - if the gap is way off, you'll get spark, but the timing will be off. It's worth a shot, and easy to do.

I know how frustrating this can be. I spent all winter, on and off, trying to start an old Farmall Cub. Everything was there, but it wouldn't start beyond one pop that would kick the starter out. It turned out to be a bad condenser that would allow a weak spark at cranking speed, and no spark above that. A new condenser, and it starts great. I have never run into a weak condenser in the 50 years I've been playing with small engines. There's a first time for everything. Hang in there, you'll get it! :fing32:

Yes! GOOD NEWS! IT LIVES! Blew the spark plug from the head, had it sent out and heli-coiled. Came back, installed and she started right up!

Granted the throttle and choke were all out of whack, but it's running! Photos from that eventful day...

I redid the wiring the other day to get the headlights and tail lights going again. Need to find a bulb for the tail light. I was chasing my tail trying to figure out why that wasn't turning on, come to find out...no bulb lol.

Now working on the throttle adjustment. I also found a seat back off of a melex golf car so those two mounting bolts are shoved into my back each time the high/low switches over.

Thank you all so very much for all the help over the past **** almost year. I couldn't have done it without you.