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  1. #11
    AlexFZR's Avatar
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    Quote Originally Posted by TimeBandit View Post
    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.
    Can you help me with my cooling system clean with this photo?! Answer in PMClick image for larger version. 

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  2. #12
    fx160's Avatar
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    What is it you are wanting to know
    Unless the dash is flashing an overheat code
    I’d be looking elsewhere

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  4. #13
    AlexFZR's Avatar
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    Quote Originally Posted by fx160 View Post
    What is it you are wanting to know
    Unless the dash is flashing an overheat code
    I’d be looking elsewhere
    I managed to do an abundant rinse. He didn't give me any alarms, and no fault codes or issues.
    Meter is on the move, I always feel like I'm stuck. I should probably dismantle the cooling pipes and clean them, and see where the sand has accumulated.
    I put the photos, so that someone can help me step by step to disassemble

  5. #14

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    The pipes are mostly under the engine where u can’t see them easily, follow them from the red flush pipe via splitter to intercooler and engine. The thermostat is at the top rear of engine, worth removing and checking operation of thermostat, give it a clean, but still doubtful sand is the issue....
    Last edited by HDAV; 12-31-2019 at 08:06 AM.

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  7. #15
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    I agree. Sand isn't the issue.


  8. #16
    AlexFZR's Avatar
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    Quote Originally Posted by HDAV View Post
    The pipes are mostly under the engine where can’t see than easily follow them from the red flush pipe via splitter b to intercooler and engine the thermostat is at the top rear of engine worth removing and checking operation of thermostat give it a clean but still doubtful sand is the issue....
    the best thing is to remove the engine to check the pipes? Couldn't I do it one piece at a time?
    as for the thermostat, in the store, they sell pieces to eliminate it ... what would that entail?

  9. #17
    MSX 150 guy lives on Mr. GP1800's Avatar
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    If you have water coming out of all the pissers and aren’t getting an overheat warning then sand in the cooling is not your issue


  10. #18
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Mr. GP1800 View Post
    If you have water coming out of all the pissers and aren’t getting an overheat warning ...
    The main cooling water exit from the engine is through the transom plate, just above the jet pump.

    The left and right side ‘pisser’ water exits are useful indicators, but the main water exit for the engine is not visible when riding.

    That said, if the engine is not warning of overheat then presumably the engine is flowing ‘enough’ cooling water.

  11. #19
    AlexFZR's Avatar
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    the water comes out of all the pissers, and the overheating light does not come on. What do you think it is? Spark Plug burned? Or coil?
    During the flushing phase, the water flows perfectly from the side pissers ... 3 pissers.
    Turning the engine over, I feel like a cylinder is missing. I feel gloomy. It does not run smoothly. Maybe it's the spark plugs or coils ... give me your opinion

  12. #20

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    You don’t need to remove engine that is a big job mostly they can be accessed from the side it are under exhaust so awkward to get the ones circled in red are the ones to check as they are the main inlet and outlets to check the block the head needs removing so a big job.......
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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