[MDairheads] 1966 BMW R-27 single idle problems

[walter craig]

Fellow Airheads, hope someone has a fix for the following:
Motor timing is correct. governor working fine. Carb completely taken apart, ultra sound cleaned, compressed air thru every passage and jet. Movement of slide confirmed...no hang ups.
The problem: When motor started, when throttle opened to rpms used for shifting, the motor remains running very fast, , sometimes slowing down rather quickly, other times, just remains running at pretty high rpm. I have set the air bleed jet to the manual setting but no joy.
Any suggestions/ideas out there????
Any help much appreciated.
Walt Craig717 229 2840
PA Airhead and "guest" person of the MD folks.