This is my first post, so please bear with me. I have a 1988 Yamaha Pro V 150 that has ran like a champ for several years. Over the course of the last several weeks I've had some issues. Initially, I would run it for a few hours and then turn it off and it wouldn't start up again; just cranks and cranks. After awhile, it quit starting altogether. I replaced the plugs, which worked for awhile, but now doesn't start again. I pulled the cover and noticed a little fresh oil below the engine. I have a feeling the problem has something to do with the oil reservoir and/or pump. I know it's getting gas and electricity. Any suggestions on where to start? Thanks much!