77 What to do before 1st start in 10-15 years?

I'm very familiar with automotive mechanics. Before I touch this thing I thought I'd ask what things I should look for.

I plan on:
-charging/replacing the battery (converted to 12v)
-check fuel system and cleanout as needed (guessing carb bowel and possible whole carb need to be cleaned out)
-change fluids. besides coolant and oil what do I need to do on a tractor?
-check electrical. ignition wiring, plug wires, plugs, etc.
-check air filter

Also one last question. I only drove on these tractors back when I was around 10 years old and I don't recall the operation of all the pedals. Any insight on this?

Thanks!

I'm going to focus on the tractor that is clearly in better shape than the other and it may not be a super 77 afterall. It's been repainted and has no model markings I've found yet. One family member said it was a super 88 but it has the twin slanted wheels in front not the wide track.

Anyhow, the engine turns over great. Haven't started it as I still need to work on the fuel system. I discovered the ignition has no spark. Might just be the old points but while snooping around I found that the wire to the points is hot/powered. I thought on a 12v system the coild negative wire is run to the distributor and the secondary circuit is fired when the points open and break the ground. Maybe there is another way to do it when converting these old tractors to 12v I dunno.

think I might pick up a new coil and the genesee electronic conversion, we'll see.

Good advise about the oil in the cylinders. I didn't see it until after turning the engine over :/

Thanks!

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