Reporting back to the group on how this played out. It was indeed the float that was causing the problem. When I opened up float bowl, the float appeared to be hung up on something. I could not see what causing the problem so I opened up a spare carb and used the float out of that which appeared to work just fine. I was surprised at the difference between the old float and the defective one which is pictured below. The older float looks to be much more substantial that the new one. Are the new ones coming out of Dellorto just made more cheaply than the originals??
Also, many thanks to Lars, John and Ralph for helping me get thru this.?
Tom?
?
