I just bought a stellto boat with a johnson 50 hp on it. I have 2 questions I hope someone can help me with. 1st, ti has OMC controls on it. what is the little knob under the key switch for? 2nd, it sat in a garage for 5-6 yrs, and after cleaning the carbs out it ran fine after awhile. But when I put it in neutral to line it up to put it on the trailer the idle was alot higher than when I first ran it that day. Any ideas on what made it idle faster? And what to do to fix it? Thanks for any info. JD
