On our first outing every thing ran good the first 2 days. On the third day while running 2800 rpm I hear a low steady beep and shut it down (1992 150XR6). I have a 8 hp kicker that is handy. The whole time water was comming out the P hole. I saw my oil tank low but the top tank was full. After a while I started it up and it never sounded off again. Did a flush with ear muffs( Was in salt water) and again no sounds, started to "P" at 1200 and was hot. I tend to worry alot so I thought I'd post and get a few comments from the smart folks here (I learned much just reading here). I have read that a steady beep is heat and a beep beep is oil.The boat is a 1989 Lund Tyee 1850 that I got from a family member who just never used it much the last few years. What should I check next