Final answer:
The first thing to look for after starting your outboard engine is a strong water flow from the tell-tale hole. Also, check the oil pressure and observe for any unusual sounds or vibrations.
Step-by-step explanation:
After starting your outboard engine, the first thing to look for is a strong water flow from the tell-tale hole or indicator. This indicates that the water pump is working properly and cooling the engine. If there is no water flow or it is weak, it could mean that there is a blockage or an issue with the water pump.
Additionally, you should also check the engine's oil pressure gauge or light to ensure that oil is being circulated properly. Low oil pressure can lead to engine damage. Finally, observe the engine's sound and feel for any unusual vibrations, which could indicate a problem with the engine's performance.