Thanks for the response.
I see that BME has them for sale.
I may get one.
ORIGINAL: KLOTZ
I initially had an aluminum plate blocking the carb diaphram made out of flashing. I removed the plate and went with a brass tube soldered over the diaphram hole with a piece of fuel tubing to the fuse. All problems vanished. The plate obviously still allowed pressure deviations / turbulance so to speak which created this mess. I have used both systems with great results but this time the old standby did the trick. Regards, Walter