RE: Saito 80 GK blown up
A friend gave me an older high compression .80 GK....he said he bought it in the early or mid 90's. He gave it to me because it had a cam gear w/ a few broken teeth and was set-up from sitting for prob. a decade ...FWIW it had an un-bushed rod.
I say "had" because I replaced it along with the cam, lifters and bearings. The big end of the rod was .008 OOR. (IIRC he also said he used to run an all synth. oil fuel back then )