Guys, Joe at [email protected] has come up with springs that work well with the Rotax engine. I have installed them on two different engines, and with engine off the throttle does not move. With engine running, the vibration is enough to cause the throttle to slowly open with the friction off. A small amount of friction causes the throttle to stay in the position set. What a difference that makes, and I think he has several sets left over very reasonably priced. Jim
