Here is the skinny..and forgive my terminology ...just starting with the mechanics.<br /><br />Have a 1986 20 HP (tiller) Rude model E20CRCDC<br /><br />The Engine is running well, but whether in gear or in idle when I throttle all the way back, the idle is too low; the engine almost stalls. I want to increase the lowest possible idle rate.<br /><br />There is a black plastic hollow cylinder that surrounds the kill switch at the end of the tiller and threads / screws into the throttle grip.<br /><br />My mechanic indicated by loosening that cylinder and increasing throttle (idling faster), then tightening the cylinder, it would set the stop position for the throttle. Thus, increasing minimum idle speed by stopping the throttle from moving any further back.<br /><br />Doesn't seem to be working. How can I up the minimum idle, and what is the rotating cylinder for!? I hate to drop 45 on a service manual just for this problem.<br /><br />Thank You To Those Much Wiser Than I!
