Sunday night, after it wouldn't start, I went home and let it sit with motor in down position. Monday night, I took it back to the lake. I couldn't get the fuel bulb to get more than 50% firm, but on first key turn (with choke in), it started and immediately died. On second turn, it ran for 5 seconds and died. On third key turn, it started and stayed running. I ran it for an hour with no problem.
Thanks for the input, guys.
1989 Skeeter SF 175 DF w/ 1999 Mercury EFI 150 hp