Great stuff Blackhat, That rumble was moving all over the engine at the YOC weekend. I am glad you got it. That engine looks looooovly. Is it 40 years old now?
I knocked the bearings (bar one) and seals out today. The seals were like bakerlite and one of the crank bearings had a weird metal rim built into it???
I need to do some checking on that one as I know the 2 stroke lubes the big end. I also started to take out the cylinder studs, did 2 but one next one was solid, even with a stud extractor. I think I am going to put some heat and plusgas on the rest. Heat gun or blowtorch, what do you say? Also I have a couple of bolts to drill out so I can heat those too.