RE: A 4 stroke engine to start with?
OS - Saito, take your pick.
I have a feeling that here in Europe, OS is more common and in USA Saitos are more common/prefered.
I have 3 OS's that could have been Saito's. I just choose OS when I bought my first fourstroke and stayed with them.
They're well made and easy to set up.
/Test005/