I had my boat out last weekend. It over heated on me once because I was in a "no wake" area for about 1/2 an hour. I shut it down and waited for the buzzer to stop. <br />It then started and ran fine. I then was off and running for about an hour. I shut it down for about 5 minutes, then it would only start if I have it in neutral and give it full throttle and tap the choke. As soon as I drop it back to engage the gears, it dies out.<br />I replaced the plugs and dropped it in the water yesterday. It ran the same way. When I got back home, I pulled the plugs and noticed what appeared to be water drops on the lower 2 plugs. The top one did not appear to have any.<br />Questions:<br />1. Blown Head gasket or cracked block. <br />2. Does anyone know a good way to test, or anything I can do? <br />Any thoughts would be appreciated.<br /><br />Thanks, James 