Got the boat out for the first time this season and it ran perfect! Then it wouldn't start after pulling the kids around in the tube. Turns out it was just the starter solenoid. Don't know why it went bad, but it was most likely 28 years old-like the rest of the boat. The only changes to the boat over the winter was that all of the wire and terminals from the battery were replaced with welding cable instead of the 4 gauge that was on it before,-so the solenoid got more amperage than it ever has before.