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  1. #1
    AlexFZR's Avatar
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    Sand cooling system

    Hi guys i nedd your help.
    How can i clean cooling system from little sand inside.
    My fzr sho won't go up. it is as if it were plugged.
    Suggest some product to put in while i'm doing flushing.
    Many thanks

  2. #2

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    Sand is bad as it sinks inside cooling passages and gathers not sure any product will shift sand other than lots of water maybe a back flush from specific points and removing the rubber hoses and clearing each section as much as possible.


    we have issues with sand in drains and once it get in the pipes it’s tough to shift.......

    dont start the jet until the boys are wet........

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  4. #3
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    A little sand will not cause it not to run at speed. You might run hot if the cooling passages are clogged, but you may have another problem.

  5. #4
    AlexFZR's Avatar
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    I think it is the cooling passages clogged with sand. Before he got to the beach, he went fast.
    since I turned it back on, it immediately gave me this problem. By giving gas and taking it away, I managed to purge it, but then it returned. I will try to make a rinse with a lot of water hoping to remove the sand from the circuits.

  6. #5
    fx160's Avatar
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    Could be a clutch problem
    Or split manifold dampener


  7. #6
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    Agreed….. the OP has not yet clearly elaborated having an overheat alarm or that the ski keeps going into limp-mode as a result, so it sounds like the ski has more issues than just sand. Details are being lost in the English translation perhaps.

    Sand:
    If it’s just fine grain sugar sand, it should cycle out eventually. Temporarily removing the thermostat and going for a WOT run could help increase flow rates. However, some parts of the world “sand” could be crushed coral and shell fragments of inconsistent shape & size. Most of the coolant begins in the exhaust manifold first, then flows up into the engine head by passing through 4 tiny pin-holes in the exhaust manifold gasket. If you look at this gasket, you will see large cut-out holes for the water jacket HOWEVER these holes are for the voided recesses of the jackets. The tiny pin-holes actually line-up with the open jackets that join the exhaust and head jackets, and therefore are the holes that convey the coolant flow. These pin-holes represent the narrowest point of passage in the entire journey of flow, and therefore would be a likely candidate to get blocked. Therefore reverse-flush the system manually, or remove the exhaust manifold to assess and clear.

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  9. #7
    AlexFZR's Avatar
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    Change clutch 1h ago... i think is not that the problem...
    Quote Originally Posted by fx160 View Post
    Could be a clutch problem
    Or split manifold dampener

  10. #8

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    Any error codes?


  11. #9
    AlexFZR's Avatar
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    No man... tomorrow i'm going to a lot of flushing and let you know what's matter.
    Quote Originally Posted by HDAV View Post
    Any error codes?

  12. #10
    fx160's Avatar
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    You can also get water past the coils that can cause a loss of power
    And it will return intermittently

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