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Recent content by John Bathurst

  1. J

    Yamaha 9.9 new model idle

    A sailing club I belong to has 6 Yamaha 9.9 outboards powering out 27' Catalinas. We have had 2 of the new model engines develop rough to no idle conditions requiring service shop repairs to correct. First problem occurred 2 years ago and we installed a pre filter system and have had no repeat...
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