The other day, for the first time ever, I went across a boat wake and heard an alarm Beep. It was a series of beeps when I would try to accelerate but stop if I let off the gas. I went home checked the oil, checked the oil float and it was fine. I changed the spark plugs and the water fuel separator. Went back out and it was fine for 2 trips. On the way home last night I hit a wake and heard a very short Beep which made me think it's trying to creep back in. Any ideas? I replaced the oil reserve about a year and half ago FWIW.
1999 Mercury EFI 175 0G868708