I believe that the Saito manual says that you may have to leave the glow starter attached during the initial run-in. This is because the initial factory settings are so rich that the motor may not keep running without it! With the factory settings, the motor that I just broke in would drain a 12 oz tank of fuel in about 6 minutes of idling, even after leaning out the high-end. The factory low-speed mixture is good for initial break in, but not for flying.

I agree that you can't be in a rush. This motor is not an OS 46FX and it really needs the break-in time. And it needs to be kept very rich during the break-in process. But my experience is that the low speed mixture must be leaned to "reasonable" before the motor can be flown, and this would be best done while still on the stand. I began adjusting the low-speed mixture during the 5th tank of fuel, which is about 1/2 gallon, and slowly worked my way to the current setting over the next gallon. This is what I tried to describe in my previous post.

So, Shubox (and others)- how much fuel would you run through the motor before starting to adjust the low-speed mixture?