Just so you know, your different floats may have different weights stamped on them. This makes them ride higher or lower in the bowl affecting rich/lean. Also there is a critical distance of 17.5 to 18.5mm from the bottom of the float to the bowl seal surface when you gently press in on the float. ?Old floats are 10 grams, and I think they sell 8.5 gram ones now. ?You should probably try to make both carbs the same if you can. Consider new needle valves also. They get hard and do not shut off the flow of gas.
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On May 31, 2023, at 6:23 PM, Tom via groups.io <Tlgelz@...> wrote:
?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?
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