Have 20 jr experience with all kinds of engines. Have had no trouble with any brand.
This morning tried to run my first YS. Could not get it running.
See my post on the ys support forum: http://www.rcuniverse.com/forum/YS11...1998741/tm.htm
I'm sure I will find out what is wrong, but my first conclusion is that it is fore some reason not as simple as a Saito or any other four stroke