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Thread: Water pressure gauge on a Yamaha 115 V4

  1. 02-16-2018, 10:16 PM #1
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    Default Water pressure gauge on a Yamaha 115 V4


    Can anyone tell me where on the motor to plumb in a water pressure gauge on a 1998 Yamaha 115 V4? I'm guessing it would be the same on any V4, but I don't know that for sure. I have looked it over and don't see an obvious place to put a fitting in. I know a real obvious place to plumb it, but I don't want to lose the pee hole.
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  2. 02-17-2018, 09:38 AM #2
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    Post#7 blow up picture. Should be same as your motor.
    https://www.screamandfly.com/showthr...nsor-and-gauge

    This site is a good source for motor info. Screamandfly.
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  3. 02-17-2018, 09:52 AM #3
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    Thank you. I guess it doesn't matter which of the two cylinder heads it goes in?
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  4. 02-17-2018, 12:15 PM #4
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    Quote Originally Posted by FurFlyin View Post
    Thank you. I guess it doesn't matter which of the two cylinder heads it goes in?
    the top one would be where the lowest pressure would be as the water comes from below the motor. If there's a pressure drop it would show up there first. At least that's hat I think
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  5. 02-17-2018, 12:51 PM #5
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    Quote Originally Posted by FurFlyin View Post
    Thank you. I guess it doesn't matter which of the two cylinder heads it goes in?
    In reading the posts I gathered it goes in right side.
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