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    Water Pressure ... howmuch ?

    My boat has a 1989 Yamaha Pro V 150. I would like to fit a water pressure gauge for this motor and need to know what sort of pressure (in PSI) I should have under normal conditions. I need to know this in order to choose a suitable gauge.<br /><br />The motor seems to have good water flow...
  2. C

    Yamaha Pro V 150... whats so special about it and how do I break it in ?

    I live in Sri Lanka and I have just imported a fully rebuilt 1989 Yamaha Pro V 150 from USA.<br />What are the DOs and Don’ts during running in?<br />What is the duration of running in?<br />What should the oil : fuel ratio be during running in and what should it be after running in is complete...
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