RVM, I´m truly sorry if I have I have embarrassed you by my remarks that was certainly NOT my intention...SORRY..!
RVM, is there any chance you could measure the CR of your Saito.82 engine.?..I have not access to a Saito.82 but have seriously considered to buy one second hand. So if you could measure CR and give me a description (or even photo) of the combustion chamber shape I would be most grateful. Used Saito engines are plentiful here at present since most people are converting to electric flying now.
Attach pics of the syringe graduated in mL that I use for filling ATF oil in the "head space"...Cheers/Harald