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  1. Thread: Octane….dang it

    by K447
    Replies
    18
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    703

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    My understanding is that the ‘Low Octane’ tune is still configured for 91 octane fuel, but less aggressively so.

    Riva Stage 1+ tunes for SVHO engine;
    Low Octane Stage 1+ => 91 octane (more...
  2. The flywheel (magnets loose or damaged) and the...

    The flywheel (magnets loose or damaged) and the Ficht stator (damaged or incorrectly wired to the 12-pin plug) are the primary and more common causes of reduced injector voltage (given that the EMM...
  3. Larger diameter tires (and perhaps wheels) is an...

    Larger diameter tires (and perhaps wheels) is an upgrade.

    I think some of us are surprised you have managed to wear out a set of trailer tires in three years of towing. How much total distance...
  4. More than 20 volts DC required in order for the...

    More than 20 volts DC required in order for the fuel injection system to start the engine. 17 volts is much too low

    Typically with lanyard in and a healthy battery the DC voltage on white/red wire...
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    I will suggest a safety strap (or chain) added to...

    I will suggest a safety strap (or chain) added to ensure the ski stays on the ramp even if the winch releases unexpectedly, while unattended.

    Mounted to the actual frame of the lift, in case the...
  6. Thread: Octane….dang it

    by K447
    Replies
    18
    Views
    703

    I composed a similar reply a few days ago,...

    I composed a similar reply a few days ago, apparently it did not actually post :-?
  7. Replies
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    The CDI can remain connected directly to...

    The CDI can remain connected directly to Red/Purple wire group.

    Only if you experience warm engine restart problems would the CDI need to be connected instead to Orange wire from the...
  8. What matters is the air density inside the intake...

    What matters is the air density inside the intake manifold and inside the cylinders, relative to the fuel injected on each combustion cycle.

    My understanding is that the ECU has a single...
  9. One advantage of the Triton single trailer with...

    One advantage of the Triton single trailer with curved cross beams is that the PWC support bunks and hull sit lower relative to the wheel axle and fenders.

    Which means that the wheels and tires...
  10. Get flat too easily? How much towing distance...

    Get flat too easily?

    How much towing distance are you doing and at what speeds?

    What size and weight is the PWC you are carrying on that Yacht Club single trailer?
    How old is the trailer?
  11. Thread: Hard turnover

    by K447
    Replies
    3
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    213

    http://polarispwcknowledge.shorturl.com/first-thin...

    http://polarispwcknowledge.shorturl.com/first-things-to-do

    The upgraded replacement start solenoids were OEM on Seadoo for several model years, and some others.

    Using the link above you can...
  12. Replies
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    Do you know what material your hull is? My...

    Do you know what material your hull is?

    My guess would be straight-up old-school fiberglass.
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    Rather than guessing, connect a voltmeter the...

    Rather than guessing, connect a voltmeter the next time you go riding. Check the voltage every few minutes. Or put the meter somewhere that you can see it while riding.

    The GP1800R dash (I think)...
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    Not every day one encounters colorways...

    Not every day one encounters colorways when reading about PWC stuff.

    Vocabulary exercise is fun.
  15. Thread: Octane….dang it

    by K447
    Replies
    18
    Views
    703

    https://vpracingfuels.com/product/octanium-unleade...

    https://vpracingfuels.com/product/octanium-unleaded/
  16. Thread: Octane….dang it

    by K447
    Replies
    18
    Views
    703

    https://en.m.wikipedia.org/wiki/Methylcyclopentadi...

    https://en.m.wikipedia.org/wiki/Methylcyclopentadienyl_manganese_tricarbonyl

    For anyone new to using fuel additives, pay attention to the prescribed product handling and health cautions when using...
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    Welcome. What state is the rest of the engine?...

    Welcome.

    What state is the rest of the engine?
    Hours, compression (if you know), any known damage?

    Are you familiar with doing engine internal work?
  18. What are you smelling, exactly?

    What are you smelling, exactly?
  19. Replies
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    2,449

    I would wait a couple of days with just the...

    I would wait a couple of days with just the transom plate installed, if you can.

    What another member posted was to ‘snug’ the transom bolts to hold it in place with the wet sealant. Making sure...
  20. Thread: Octane….dang it

    by K447
    Replies
    18
    Views
    703

    https://en.m.wikipedia.org/wiki/Methylcyclopentadi...

    https://en.m.wikipedia.org/wiki/Methylcyclopentadienyl_manganese_tricarbonyl

    https://vpracingfuels.com/product/octanium-unleaded/

    For anyone new to using fuel additives, pay attention to the...
  21. Replies
    38
    Views
    2,449

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    There will be a lot of sideways ‘squeeze’ of the sealant when the transom plate is put into place and the stud nuts are tightened to clamp the plate to the hull.

    The sealant is not there to glue...
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    2,449

    The idea is to extend the width of the cast...

    The idea is to extend the width of the cast aluminum area across the casting void with the epoxy fill. The epoxy will self-cure throughout the depth of the void. This provides a solid surface for the...
  23. Thread: My GPRXP build

    by K447
    Replies
    168
    Views
    9,907

    That splice connection looks like a heat shrink...

    That splice connection looks like a heat shrink type with a ‘low temperature’ solder ring in the middle. However, the metal ring is supposed to be heated enough to melt inside and solder the copper...
  24. Any chance you accidentally pressed on the Stop...

    Any chance you accidentally pressed on the Stop button during that small wave jump?

    Or jiggled the lanyard switch?
    Are you using the OEM lanyard strap and handlebar clip?
  25. I meant the trailer design determines the...

    I meant the trailer design determines the physical space for the tires.

    If you want to ‘upgrade’ the tires I presume you mean to a larger diameter wheel and tire combination. That larger tire...
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