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I was underway buzzing along at 4800 rpm, 35 mph on my Montauk 17 Whaler when all of a sudden loss of power to 2300 rpm. Stalling and running rough, hard to re-start. Revs easy to 6000 from neutral. Under load to higher than 2300 at 14 mph. No smoke, temp good. The timing adjustment screw...
