Gents,

Thank you for your help and inputs. I reassembled the regulator and test ran in my back yard. I found the problem. The end of my Z bend hit the post of the servo arm preventing it from closing the throttle.

I mounted my micro servo HS81 about 4" from the throttle arm and it is very difficult to watch the 'barrel' rotate on the YS110 carb with the air chamber in the way.

My YS now idles as it should and the barrel can be closed off to kill it. Now that I have it hard mounted, I found that the YS110 is a real thumper. It shakes quite a bit. I use a Xoar 16X6, which is balanced and no spinner. After I regapped the rocker arms, it stopped making the rattling sound and did not throw the prop.

I tightened the prop nut so hard that it crushed my Xoar prop. I need a larger, stainless steel washer. Maybe I should put my Hyde softmounts back on? Is the shake at idle normal with the YS110FZ? I am going to the LHS to buy YS 20/20 before I fly my Laser.