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  1. B

    Tell Tail pressure difference

    Oh boy. Now you have gone and done it. Stand by for incoming.
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    Tell Tail pressure difference

    Water is taking a circuitous route from the water pump to the tell take exit port. Easily disrupted such that the flow from two side by side motors might not be similar.
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    Tell Tail pressure difference

    Motors are reported to be peeing just fine when underway. If the tell tale port was clogged one might think that would not be the case.
  4. B

    Tell Tail pressure difference

    If one could look at pressures and temperatures to a fine enough degree one would find that two of the exact same model won't be operating exactly the same. Which is why most motor makers provide a range for data.
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    Tell Tail pressure difference

    As to a possible cause, could just be a variation in a hose. A difference in a fuel cooler. Or a pipe from the lower unit.
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    Tell Tail pressure difference

    No two Yams are alike. Just the nature of the beast.
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    2005 90hp Yam no spark.

    It is difficult to keep up with what is doing what within any given Yam.
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    2005 90hp Yam no spark.

    Only one pulser coil.
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    2005 90hp Yam no spark.

  10. B

    High Voltage Yamaha two stroke 75 HP 2015 model

    System double posted for me. I could not make a correction.
  11. B

    2005 90hp Yam no spark.

    The specifications and the test procedures are in the applicable Yamaha service manual. LIT-18618-02-66.
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    High Voltage Yamaha two stroke 75 HP 2015 model

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    High Voltage Yamaha two stroke 75 HP 2015 model

    What type of 70 amp battery? Sounds too small. Yamaha specifies a flooded lead acid battery with a minimum of 502 Marine Cranking Amps. I would check the ground circuits from the rectifier/regulator to the engine wire harness. Ground connections of the battery cables at the motors also. But...
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    2005 90hp Yam no spark.

    Yams don't use a trigger. Either a pulser coil or a crank position sensor initiates electrical discharge from the CDI assembly. Sometimes both are used.
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    50TLRB Tilt Relay Mystery

    All Yams use two relays of a fashion. Those that have trim and tilt or power tilt. Some integrated together within one unit. Some use two separate relays. Ala Mercury. Google is not needed. Outboard motor forums not needed.
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    50TLRB Tilt Relay Mystery

    When was that?
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    2005 90hp Yam no spark.

    First thing? Probably the kill switch.
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    50TLRB Tilt Relay Mystery

    With Google, why does anyone come here in the first place?
  19. B

    50TLRB Tilt Relay Mystery

    Google can be your friend.
  20. B

    50TLRB Tilt Relay Mystery

    How it works. TMI?
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