I pulled an engine that had been run with a plugged exhaust (to the point it would not continue running) and was terribly carboned up. My hands were black every time I worked on it, and finally swapped to a better engine just to get a running bike after 20 years off. It was a K3 with an 812 kit with the pistons backwards, The fool that built it even valve clearanced the domes. I put it on the shelf but am wondering if anything in it would be useful or it's probably toast?
I thought at least the cylinders are already half way to 65mm. I never got to shift it because it only ran for a few seconds at a time. I swapped the motors before realizing the exhaust issue, so I can't say if it shifted and I'm remembering it did have stuck valves that caused pulled cam holder threads.
Of course the seller claimed "ran when parked" but as he turned away I saw the sneer on his face knowing he got me good. Yup, diecast with Lesters for $650. I sent the bike of the month pictures to his buddy's bike shop last year.
