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  1. #1
    christian gpr's Avatar
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    Another Jet works question

    Did my first run with the jet works today. First question, when running the motor with the garden hose water is coming out the exaust, is this correct? When flushing do you do anything special to the last piece of the pipe that is cut of with the gasket or do you just let it be?


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  3. #3
    christian gpr's Avatar
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    That was exactly how I installed it. So I suppose the water comming out is right otherwise I "should be castrated" . How about flushing?

  4. #4
    Moderator RX951's Avatar
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    Are you sure water is coming out of your exhaust and not the pump area ?

    Water will come out of the pump nozzle area.

    If I am correct, on a flush, there should not be water coming out of the exhaust. That is the purpose of the jetworks, to keep the waterbox dry.

    1 reason is that there is not enough water pressure on a water hose to open the jetworks.

    The jetworks will only open up at 3500 rpms set by the pump pressure.

    I should be right, if not, someone will correct me.

  5. #5
    Crash Test Dummy Smitty's Avatar
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    Dude.... just to make sure you aren't as green with these things as I was... make sure the motor is running while you have the hose hooked up! I made that mistake and almost ruined my motor (in fact, that is how I came across the Riva forum, which led me here). If you run the water with the motor off, yes it will come out the exhaust. If you have done that, don't try to crank it, get it to a mechanic NOW.

  6. #6

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    That would suck!

  7. #7
    christian gpr's Avatar
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    I always start up the engine and let it run for a few sec before I turn on the water. I will check again today, maybe it was as RX951 suggested that I saw the water from the pump and misstook it for water from the exaust.

  8. #8
    I run the water out low through the transom where the stock syphon used to go. I put a barbed fitting there. I stick a hose on it when flushing and the syphon effect makes sure the pipe is drained. If you put the water bypass up high you will end up leaving the pipe full of water. You can also try tilting the trailer to get it to drain.

  9. #9
    christian gpr's Avatar
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    Opps! My bad, the water came out of the hole in the transom next to the exaust. In my defence there was a lot of smoke since I was breaking in the engine with double the amount of oil. Anyway GREAT acceleration with the milled head and the Jetworks mod today when I finaly let it rip.

  10. #10
    Moderator RX951's Avatar
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    Opps! My bad, the water came out of the hole in the transom next to the exaust.
    Glad you figured it out

    That how we learn...we ask questions no matter what it is.
    No question is invalid.

    "We ask because we don't know"


    Glad to hear your ski is running well.

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