OK, so we know we have a fuel issue to fix.
Ethanol is the problem. Many-many flooding problems since ethanol.
The fix so far is to shut the fuel off and let the carb run/drain dry.
Running non ethanol surely would be a plus.
Iv'e been recommending a inline shut off close to the carb. I install a filter right above it just cuz.
So far it's helped. I'm thinking that the fuel running in cleans the ethanlol gunk off the needle and allows it to operate normal (not sticking).