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  1. #21
    Frequent Poster Lee Taylor's Avatar
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    Re: Cooling System - MR1

    The video also shows and tells were to clamp for towing purposes

    Owner. Rider. Maintenance. 15yrs.
    2002 Yamaha. FX140. 1000cc. Cruiser. Collectors model.
    2017 Lowes Stryker 16. Mercury 50hp 4-stroke.
    Video: https://www.youtube.com/playlist?lis...CHDiKr9UqpdsAV

  2. #22
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: How to tow a 06 VX in water?

    At 3:38 (on video) it clearly shows the red flush hose & Y connector & says to block off.

    I am not sure what the rest of the mumbo jumbo you are trying to prove is going .

  3. #23
    PWCToday Newbie jeffpat's Avatar
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    Re: How to tow a 06 VX in water?

    I had no idea the cooling system was so freekin complex! No wonder we're debating this stuff!

    So it sounds like the consensus is to clamp by the Y connector. I assume that means BEFORE the Y connector?

    Thanks guys!
    Jeff

  4. #24
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: How to tow a 06 VX in water?

    Before or after doesnt matter.

  5. #25
    Frequent Poster Lee Taylor's Avatar
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    Re: Hose - FX140, Coolant Inlet

    Quote Originally Posted by Lee Taylor View Post
    On my machine it is Item 60 on the schematic / http://www.yamahapartshouse.com/oemp...318d/exhaust-2
    Correction: Item 60 should read Item 01

    Owner. Rider. Maintenance. 15yrs.
    2002 Yamaha. FX140. 1000cc. Cruiser. Collectors model.
    2017 Lowes Stryker 16. Mercury 50hp 4-stroke.
    Video: https://www.youtube.com/playlist?lis...CHDiKr9UqpdsAV

  6. #26
    Frequent Poster Lee Taylor's Avatar
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    Re: Hose - FX140, 2002, Coolant Discharge

    [QUOTE=Lee Taylor;4443639]The 1" (approximate) black one in the bottom left hand corner of the photo. The one leading to the Thermostat housing. The Thermostat housing is the silver sub-assembly hanging on the engine beneath the engine hoisting lug
    --------------------------------------------------------------------------------------------------------------
    Correction:
    ---------------------------------------------------------------------------------------------------------------
    Title did read: Re: Hose - FX140, 2002, Coolant Intake
    -------------------------------------------------------------------------------------------------------------------------
    Title changed to read: Re: Hose - FX140, 2002, Coolant Discharge
    -------------------------------------------------------------------------------------------------------------------------
    Last edited by Lee Taylor; 08-22-2017 at 09:01 AM.

    Owner. Rider. Maintenance. 15yrs.
    2002 Yamaha. FX140. 1000cc. Cruiser. Collectors model.
    2017 Lowes Stryker 16. Mercury 50hp 4-stroke.
    Video: https://www.youtube.com/playlist?lis...CHDiKr9UqpdsAV

  7. #27
    Frequent Poster Lee Taylor's Avatar
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    Banter - Waverunner, Yamaha

    Quote Originally Posted by jeffpat View Post
    I had no idea the cooling system was so freekin complex! No wonder we're debating this stuff!
    And thank you Jeff for starting the thread. I was aware of the open path for the coolant to go past the exhaust valves and into the cylinders but I was not aware that is would happen when towing. I have been towed and have towed others off of sand bars, short distances, with no ill effect. Glad to have this "hose clamp" knowledge. Also glad to have the coolant direction confirmed! Look me up Jeff if you are ever down Charleston SC way. We have LOTS of water, salt and fresh, and we run boats and skis all over the place
    Last edited by Lee Taylor; 08-22-2017 at 09:24 AM.

    Owner. Rider. Maintenance. 15yrs.
    2002 Yamaha. FX140. 1000cc. Cruiser. Collectors model.
    2017 Lowes Stryker 16. Mercury 50hp 4-stroke.
    Video: https://www.youtube.com/playlist?lis...CHDiKr9UqpdsAV

  8. #28
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: Banter - Waverunner, Yamaha

    Quote Originally Posted by Lee Taylor View Post
    I was aware of the open path for the coolant to go past the exhaust valves and into the cylinders but I was not aware that is would happen when towing.
    Not sure what you are thinking is a "open path" to go to the exhaust valves but its called a exhaust manifold.

  9. #29
    Top Dog volltrex's Avatar
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    Re: Discharge - Coolant, FX140

    Quote Originally Posted by Lee Taylor View Post
    Here is what is happening on my machine. Item 33 is protruding into the water jet stream and acting as a venturi. Cooling water is being drawn out of the system here. Here is a test I performed. I took the fitting off my garden hose (example shown in photo - part 67x). I inserted it into the back flush fitting (Item 75) and defeated the one way valve that exist within the back flush fitting. I then launched my jet ski at the dock and started the engine with the seat off. Water discharged through the back flush fitting Item 75, until I removed the garden hose fitting. My conclusion is that water comes out of those two lines (there are additional discharge lines we can discuss later) when the unit is in the water and the engine is running.
    -----------------------------------------------------------------------------------------------------

    venturi by divepassion, on Flickr
    ---------------------------------------------------------------------------------------------------------

    Back Flush by divepassion, on Flickr
    ------------------------------------------------------------------------------------------------------

    -index by divepassion, on Flickr

    Item 33 is the bilge venturi........nothing to do with the cooling system.

    The hose where the valve has been installed is the one that needs clamping.....this is an FX, but VX should be similar.

    Tow Tap.jpg


    Dave




    2007 FXHO 160 Cruiser, Sold
    2012 FXHO Cruiser

  10. #30
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: Discharge - Coolant, FX140

    Quote Originally Posted by volltrex View Post
    item 33 is the bilge venturi........nothing to do with the cooling system.

    The hose where the valve has been installed is the one that needs clamping.....this is an fx, but vx should be similar.
    x 2

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