When I ran in my engine, we ran it "blubbering" rich on 15:1, meaning so rich it barely ran. This is what is referred to as "open main needle until speed drops just before engine stops". The Saito instructions aren't the clearest, but I think it suggest that the first 1/2 gallon or so needs an abundance of high quality lubrication or the risk of conrod, piston, and/or cylinder failure is high.
This happened all too frequently on the 33R3 and 84R3, but I was hopeful the introduction of the bushing and improved fuel/lubrication distribution found on the 60R3 remedied this - guess not.
Last edited by marksp; 06-01-2015 at 07:38 PM.