Not yet, but I'm working on it. This is an old Tanaka .23 in very good shape. Externally it was a mess. Internally, it was impeccable. When I turned down the top to take a head, I noted that the chrome layer seemed to be visibly thick as in more than a thin, microscopic layer. by the look maybe .010 thick. Is that typical?

At any rate, this engine will get the diesel head, a glow head and also I'm going to look around for one of those itty bitty spark plugs as used years ago on the early MODEL spark ignition engines.

I've seen a number of gas conversions and most of them look good. Some have awkward backplate mounting arrangements. Not this little Tanaka. The pull start carrier is bolted on with four equally space bolts and the flange makes an excellent backplate mount. In other words, it bolts directly to the firewall. All you have to do is trim off the magneto shroud and you end up with NO excess material anywhere.