|Jack B Hart
Joined: 22 Feb 2018
Location: Winchester, IN
|Posted: Thu Apr 18, 2019 8:03 am Post subject: Richard's rpm seaking engine
Your problem may be caused by oscillation of the slide and spring in the body of the carburetor.
Bosch makes several different springs. Try a heavier or stronger spring. I had the same trouble with my 447 and a stronger spring cured it.
Jack B. Hart, FireFly 004
|- The Matronics Kolb-List Email Forum -|
Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:http://www.matronics.com/Navigator?Kolb-List
Jack B Hart FFoo4