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engine rough

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    2013 Yamaha 242 Limited S - Engine RPM Mis-Match

    2013 Yamaha 242 Limited S Port side engine started vibrating and lags behind the Starboard engine by 1,000 RPM when cruising over 20 mph. Port side engine sounds much louder than starboard engine at idle and while cruising. there are no alarms or "check engine" lights Things I have tried /...
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