Starting stopping engine?
So after giving the new to me 99 3.0Merc boat a good tune up carbs, water pump impeller, gaskets to fix oil leaks, bilge pump and a few more I finally got it back in the water today and have a few questions on starting and stopping proper procedures. So I ran the boat after oil change in driveway about 4 hours before we took it out so I would think it should start fairly easy but it didn't. I pumped throttle 2 times turned it over for a few seconds pumped a few more times and nothing so I gave it between 3/4 and full throttle cranked it and it fired after about 4-5 seconds. Now after driving it for about 25 minutes decide to turn it off and start it right away and it did. Stop it again and we sat for about 10 minutes go to fire it again and nothing so had to do the full throttle thing again. So my question is this normal and do I just need to become more familiar with the starting procedures? Also when I turn it off it sputters for a few seconds just some times. Is this normal? This is all new to me I have never had and rarely been on any inboards. Thanks