[Shiny]

My takeaway: If a carb goes dry in 2 or 3 hours, it's not typical, but by itself, I don't know that it matters if it starts and runs well when the bowl is filled again.

If it goes dry in 2 days, that's probably in the range of normal for a vented carb with an effective anti-drainback valve. Going dry in 5 days is well within the range of credible evaporation rates. Here's one example:

https://forums.maxperformanceinc.com...0&postcount=20

Way too many variables to guess at the underlying causes for the difference between 2 hrs and 2 days. Temperature and leaks are just two possibilities. Other factors include fuel formulation, vent size, bowl volume, and I'm sure there are more.

All these things are hard to measure and diagnose. For me, I think adding an electric pump fixes all of the possibilities if I decide I don't like cranking.

Mike