Mercury115 Inline-6 gremlins

[McGillicuddy]

Went down to the ramp to chase tuna but got no farther than the ramp. I couldn't get the old girl to idle.

Came home and got it to idle after 10 min of warm up but after a few gear engages I shut her down. Re-started and again had trouble getting down to idle. Yesterday I noticed fuel leaking out top carb but after shooting some carb cleaner in the dripping carb and giving it a couple of taps to see if floats were sticking or something, it quit leaking. Hoped it was fine. I thought I'd run it hard with some Quickleen today but never got off the trailer.

Any thoughts on the dripping(flooding) carb or why she won't idle?

Sticky float? gummed up carbs? where should I start? Thanks for any insight
I know these motors are sensitive to sitting too long or burning bad gas.