I ran my 1993 Yamaha 90 today after about 3 months of storage. (Plenty of oil in the engine tank) The boat ran fine at high speed for a few minutes then the engine began to falter and died. My guages are very cloudy and hard to read so I don't know if any of the warning lights are working but I'm pretty sure it is not getting oil. (No Smoke) It will idle ok but after a few moments of mid speed it gets noisy. How can I check the oil flow? Since it still idles fine and runs for a few moments at higher speeds is there a chance I have not yet ruined this engine?