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    http://polarispwcknowledge.shorturl.com/polaris-fi...

    http://polarispwcknowledge.shorturl.com/polaris-ficht-fuel-injected-engines

    Some of the early year Ficht documentation described how Ficht works. Search for the words Ficht and Stratified.

    A...
  2. Well, that does not tell me what Yamaha means...

    Well, that does not tell me what Yamaha means when they say ‘hull packing’.

    It seems that Yamaha uses that term to describe a certain kind of hull action or reaction to certain water conditions or...
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    It would be considered a tall stubby pontoon boat...

    It would be considered a tall stubby pontoon boat …
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    What year and model are you using? Cruiser...

    What year and model are you using?

    Cruiser seat?
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    The 2022 FX hull is also a different material,...

    The 2022 FX hull is also a different material, possibly produced using a new-for-the-2022-FX-model press mold for the SMC. Different hull material means different manufacturing process with different...
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    If the hull is not correct then you can stop...

    If the hull is not correct then you can stop looking for ride plate solutions.

    If I had an FX that was porpoising despite running well below the RPM limiter * I would certainly spend some time...
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    This is a manufacturing quality/consistency...

    This is a manufacturing quality/consistency problem?

    The hull bottoms from the factory are deformed, or become non-uniform in use?

    I have not seen others reporting on FX hull non-straightness....
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    Indeed. Very much so.

    Indeed. Very much so.
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    If the range of ambient temperature change during...

    If the range of ambient temperature change during storage is large enough the pressure differential can cause the check valve to vent. I agree that PWC fuel tanks probably vent a lot less often and...
  10. Yamaha is using that term across its marketing...

    Yamaha is using that term across its marketing material for the new model but declines to explain what it means?
  11. I am unfamiliar with that term. What is hull...

    I am unfamiliar with that term. What is hull packing?
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    These are old machines. During the ignition...

    These are old machines. During the ignition upgrade the engine was messed with, the electrical box was tugged around, etc.

    The pitot tube runs down through the steering assembly and through the...
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    Fogging the engine has little to do with the...

    Fogging the engine has little to do with the temperature during storage, and more to do with protecting the metal from corrosion during storage. Fogging the engine is not done because the machine...
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    For the speed reading on MFD, as far as I know it...

    For the speed reading on MFD, as far as I know it self-calibrates at each ‘wake up’. The speedo function is independent of the voltage calibration and the hour counter. I do not know what you are...
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    I do not remember whether the 146mm pump base on...

    I do not remember whether the 146mm pump base on the early hulls will directly bolt up to the 148mm jet pump.

    Or does the entire old 146mm pump unbolt from the hull and be replaced by the 148mm...
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    The speedo reading is entirely determined by air...

    The speedo reading is entirely determined by air pressure. There is a differential air pressure sensor inside the MFD. It compares ambient air pressure with the air pressure coming from the connected...
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    Make sure you removed the small single bolt along...

    Make sure you removed the small single bolt along the left side of the jet pump.

    I forgot about that small bolt once, ended up bending the little bolt before I realized my error. Bought a...
  18. Sticky: Those that need the info can try again...

    Those that need the info can try again.

    During the coming winter season, perhaps the Polaris PWC community can get together and get some/most of the site converted, updated and hopefully improved....
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    There are time limits on running the engine with...

    There are time limits on running the engine with the jet pump out of the water.
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    Which flash?

    Which flash?
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    How long has it been since you last put the pump...

    How long has it been since you last put the pump on?

    Is the pump body stuck in place?
    Can you get the pump body to separate from the forward portion and move a few mm rearwards?
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    Thank you for that Yamaha Tech Exchange PDF...

    Thank you for that Yamaha Tech Exchange PDF

    WCA2011-003
    Engine Fogging Recommendations for Current Waverunners and Yamaha Boats

    Written for the SHO engine, looks like it would directly...
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    My Garmin will read to depths beyond 500 feet...

    My Garmin will read to depths beyond 500 feet (and I have seen that on my own screen) and will report depth while traveling at speeds of 50mph.

    The depth sensor is at the rear of the hull but...
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    Where is this documented?

    Where is this documented?
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    Vertical rubber flaps? They can be deleted....

    Vertical rubber flaps?

    They can be deleted. They provide a degree of sound reduction for the exhaust.
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