Pulled the spark plugs to take a peek in the cylinders.
, Much to my dismay we have rust. I introduced a quantity of Marvel Mystery Oil into each cylinder to begin the soaking process. I've had good luck in the past with frozen pistons, but it takes a lot of time. I typically will set the transmission in high gear and rock the rear wheel a bit to turn the crankshaft. My R100S BMW engine soaked about 7 weeks before she broke loose.
The toolbox and air tubes appear to be the proper fit.
The "Zundapp Fool", who is the U.S. Zundapp Guru wanted to see the I.D. Plate. He has never seen one quite like this. It has "H COM ENGINE" stamped into it.
I'll be traveling around the country on business for the next 10 days so things will sit for a while.