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  1. W

    2008 yamaha 8hp hi thrust

    Yes fuel is new and ethanol free, and it goes through a water seperatetor/filter before it goes to the motor. Carb is set to the manual
  2. W

    2008 yamaha 8hp hi thrust

    Also I have checked compression. Top cylinder is 148, bottom cylinder is 153. My only chocking of spark was to hold the plug against the motor and both looked good, blue spark
  3. W

    2008 yamaha 8hp hi thrust

    2008 8hp high thrust. Motor is difficult to start, idles rough. It revs up to high rpms in neutral, but in gear it onlys gets to about half rpms at full throttle. No rpm guage so this is approx. I have cleaned the carb 3 times everything look shinny and clean then i guessed i was doing something...
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