Hi Guys,

I have found that if you like to not have to adjust your mixture screws after each flight get a YS.
These motors are the best set and forget I have ever found.
My mates are always having to fiddle with their Saito's or any other 4 stroke for that matter,where as I just fire up my YS motors and get a beautiful idle and fantastic response evey time.
So in closing if you are a fiddler buy a Saito or OS etc
If you want to fly and not fiddle buy a YS.
I run 30% nitro 20-22% coolpower and never any problems on any of my YS engines.
Good luck..