08-05-2007, 08:52 PM
Like the Johnson/Evinrude motor, the Mercury is the exact same motor in 9.9 and 15, just a different carb. I've had both, and both are very reliable. I've heard good things about Yamaha and Honda as well, but have no personal experience with the small motors. Currently use a 6HP 4 stroke Merc with no complaints.
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