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Type: Posts; User: K447

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  1. Replies
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    Poll: Welcome. 4-stroke Yamaha PWC generally do not...

    Welcome.

    4-stroke Yamaha PWC generally do not need any antifreeze at all. The engine water jackets are self-draining, especially if you raise the front of the trailer up.

    Blipping the throttle...
  2. View Post

    What years/models of ‘traditional hulls’ are you comparing the GP1800 HO with?

    The VXR was first sold in 2015 (what is now called GP1800R HO) so there are five year old used examples available.
  3. View Post

    What years/models of ‘traditional hulls’ are you comparing the GP1800 HO with?
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    The Cooper anchor does work better with a length...

    The Cooper anchor does work better with a length of chain rode at the anchor end. I sometimes use the Cooper with just the rope rode and it works fine in non-aggressive water conditions and compliant...
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    Fogging oil is a specific type of product. ...

    Fogging oil is a specific type of product.

    WD-40 makes a wide range of products.
    https://www.wd40.com/products/

    As does Sea-Foam
    https://seafoamworks.com/
    ...
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    Android phone camera?

    Android phone camera?
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    I would agree with that. If the fuel tank is...

    I would agree with that.

    If the fuel tank is ever filled to 100% full, right up to the very top, then is is critical that the machine be put into use right away so the engine can consume some...
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    O:)

    O:)
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    Connect a digital multi-meter directly at the...

    Connect a digital multi-meter directly at the battery. Start engine, multi-meter voltage reading should rise to 14.x volts.

    Make sure the dash gauge is reading accurate voltages.

    While you are...
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    Unplug and inspect the white RiDE electrical...

    Unplug and inspect the white RiDE electrical connector near the mid-wall, lower left side.

    If no bent pins or damaged wires, and no moisture, reconnect and make sure it fully seats and the...
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    Are you always using the SLO key with your 310hp...

    Are you always using the SLO key with your 310hp watercraft?

    Was the engine broken in using a gradual increase in maximum throttle which would typically include some full throttle riding after the...
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    Genuine Yamaha Service manuals are available...

    Genuine Yamaha Service manuals are available directly from the Greenhulk store, click the banner link on the web site.

    http://greenhulk.net/forums/onlinestore.php
  13. Looking at your brief, the only engine with more...

    Looking at your brief, the only engine with more power than the VXR in a Yamaha is the SVHO engine. A lot more power overall and probably a lot more low end thrust if tuned appropriately (engine tune...
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    Where were the MFD related paragraphs from? A...

    Where were the MFD related paragraphs from?

    A Yamaha WaveRunner forum or somewhere else?
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    Similar story for me in 2013, but I had already...

    Similar story for me in 2013, but I had already switched mostly to Deka AGM by then. Except for one used PWC thatcame with a good battery so I didn’t replace the battery right away. Which failed...
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    Yes, a given make and model battery has a...

    Yes, a given make and model battery has a specific optimal float voltage (narrow voltage range) and that is affected by temperature. The manufacturer provides that info.

    Several models of...
  17. Welcome. It seems that the electrical system...

    Welcome.

    It seems that the electrical system was not in factory configuration before you began to replace the Start/Stop switch.

    My guess is that there was one or more short circuits...
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    Link to the Yuasa recommendations for their GYZ...

    Link to the Yuasa recommendations for their GYZ and/or YTZ battery (AGM battery) charging specifics?

    I can find (basic) info on the Yuasa chargers but not the specs for charging specific Yuasa AGM...
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    Correction (system will not let me edit the...

    Correction (system will not let me edit the orginal post)

    Should read;

    At room temperature for their AGM batteries East-Penn recommends (page 11) charge voltage 14.3-14.6 volts and float...
  20. Check cylinder compression. Throttle wide open,...

    Check cylinder compression. Throttle wide open, all spark plugs out.

    Any time the engine is not running well and it is 'forced' to contiunue to run at wide open throttle there is risk of (lean...
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    Moments of this sort is why battery quality,...

    Moments of this sort is why battery quality, battery maintenance and battery age matters.

    http://greenhulk.net/forums/showthread.php?t=290288&p=3105019&viewfull=1#post3105019
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    Or maybe the other way around ;)

    Or maybe the other way around ;)
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    Rusting/corrosion of the exhaust valves and valve...

    Rusting/corrosion of the exhaust valves and valve stems was a real problem for an older generation of 4-Tec engines.

    There is liquid water in the exhaust waterbox, and that can create moisture...
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    We sometimes carry them both. Which is better...

    We sometimes carry them both. Which is better depends on the situation.

    The Cooper is an excellent anchor for PWC. We keep ours inside a canvas storage bag along with the anchor rope and rode....
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    My understanding is that the seat base section is...

    My understanding is that the seat base section is now removable. With the seat lifted and the seat base unbolted there is more engine access that the pre-2021 model.
    ...
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