So, if you look at the custom cylinder, you'll notice it has a third case transfer. It also lacks a piston-port intake. This is because I made the cylinder only compatible with a case-inducted motor. The ZA50 motor pictured here has the reed-block welded to it already. It uses a malossi VL6 reed, usually found on smallframe vespa scooters and certain moped cylinders. (Gilardoni Puch) I actually cut the two huge chunks that became the reed block out of a single piece of aluminum by hand with a hack-saw.
That took F O R E V E R...
The block is pitched to the flywheel side, to create proper clearance for the rear-facing carburetor. My buddy Ratboy did most of the welding, alot of which was pretty difficult, in exchange for a six-pack of cold ones. Rat works at one of the coolest places in the world, and gets to horse around on stuff like the #2 & #3 LeMans winning Ford GT40's from 1969, Amphicars, Nazi Staff Mercedes', Isettas, $300,000 Porsches, Loti, Ferraris etc..etc..
I've actually had this laying around for over a year, but without the custom cylinder it was made for, it didn't make much sense to share. Some of the gross welding on the case transfers I did myself, and I'll probably end up fixing before the cylinder goes on. I'm getting a sense that this motor, while absurdly customized and DIY, isn't going to win any beauty pageants.