I run my YS engines on 50-60% and rich is good. lean is bad lol

YS's love Nitro.

I have an exceptionally strong YS 140L... Always got comments on it like it may have been a gem from the bunch. I ran Powermaster in it, always on the rich side, and never had any problem with the power. Great engine, and in the near future, reading previous comments will probably stick with YS.

"Is that a YS?" "Why Yes, yes it is!" :cool:

Going through my airframe, upgrading pushrods and control horns, servo trays and a few other minor fuselage repairs. I should be ready in a few days... now where is that order from Central?

My old radio memory battery went dead, so I don't have any record for rates, expo, or mix, etc., so this will be like a new airplane all over again.