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    Yamaha VF90 shuts down when running - like key turned off - no ecm codes recorded

    Thanks, I am goig to get a new priming bulb as ours has not be replaced since the boat/motor was purchased in 2022. If that does not work, I will have to figure out if it the fule pump. I terrible boating season so far.
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    Yamaha VF90 shuts down when running - like key turned off - no ecm codes recorded

    The pontoon does not have a voltage regultor guage. Problem existed before the voltage regulator was replaced by the dealer. They figured,due to no ecm codes being recorded/stored that that was the issue. Now, as of 1 hour ago, priming the bulb, the motor will not start. Bulb is soft and...
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    Yamaha VF90 shuts down when running - like key turned off - no ecm codes recorded

    Re starts after pumping primer bulb. 12 volt marine battery 3 years old and all conections have been cleaned and tightened. Replaced all fuses 50 amp, 30 and 2 @ 20 amp. Checked fuel connections at the tank location on the pontoon boat. Problem is still present. Runs fine for awhile and just...
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    Yamaha VF90 shuts down when running - like key turned off - no ecm codes recorded

    Our VF90 outboard shuts down after running for approx 30 minutes. shuts down like the key was turned off. No ecm codes shown when the dealer scanned the unit. They replaced the voltage regualtor but the engine still dies at various speeds. Cable connections are tight etc. Any ideas would be...
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