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  1. jcr6502

    Yamaha 50hp Carb Orings too small on Silencer facing side

    The parts listing references part 17 which is O ring 93210-35M-86-00 for the Silencer facing side of the carb. I have noticed the ID of this to be a few mm smaller than the OD of the carb machining it sits on. Stretching the ring to make it fit, albeit temporarily makes it too thin for the...
  2. jcr6502

    Initial Jetting on Yamaha 50hp 4 stroke outboards

    Im mostly through the carbs and while the pilots are all 39's. The main Jets are 126/124/114 for carbs 2/3 and 4...[Top-down] havent opened 1 yet but will update when I clean that one. Did they arrive from the factory with a certain compliment. All different? Did the middle cylinders run...
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