I bought this, cleaned it up, took the oil pump off, and then decided I didn't need it because I rebuilt my original ZA50. I have the original head, cylinder, and piston if you want them, but I did not bother cleaning them up. If you want those too, just ask.
It's missing some things:
1. Case bolts on the transmission cover. I put one in to hold it in place, but you'll need to find bolts that fit.
2. The oil pump is off of it (see pic). It was junked anyways.
3. The stator is inside the fly, but is missing the two little bolts that hold in in place.
4. Needs a woodruff key. You can easily find one at McMaster Carr.com
Other than that, it is ready to go. It spins nicely, is clean, and will run well.
$50 SHIPPED!!! TAKE IT TAKE IT TAKE IT.