My 150 Johnson seems to be starved of oil. It will start and shut off right after a bit with the oil alarm going off. There is oil in the reservoir(to the top) but still shows the oil light... And it does not smoke. My understanding is that if it was in fact getting oil into it, it will certainly smoke. The primimg bulb is very hard, as if there was something in the engine not allowing it it to flow. Any suggestions are welcomed and appreciated.