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  1. #1

    2003 Stx1100di EMM coolant bypass

    I have a 03 STX and the EMM coolant line at the stator gets clogged often. Has anyone "T"ed off the feed line from the pump and go straight to the emm? Would this work?


  2. #2
    steve45's Avatar
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    How about installing a strainer in the cooling water inlet hose? A Groco WSB-500 works well.

  3. #3

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    I incorporated an independent cooling line for my EMM a few years back. Here is a diagram someone else posted on PWCtoday, which is exactly how I did mine. As Steve said, this will not solve your problem of clogged cooling fittings. You should have a filter log on top of your jet pump to screen larger debris. Do you ride in salt water? If so, do you flush the cooling system after every ride? That's a good filter he recommended for the fine particles.

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  4. #4

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    GlenT Can you tell me what size fitting the Tee is and a possible source to purchase? Thanks

  5. #5

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    The hose ID is 6 mm. I used a 1/4 inch brass barb'd tee. I purchased it on Amazon for $5 or 6 bucks (Interstate Pnematics FBT44). You may also need a brass 3/8 inch to 1/4 inch reducer (for the EMM exit hose) depending on what size thru hull fitting your using. I used an aftermarket one, which has a 3/8 inch nipple.

  6. #6

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    Thanks. That is exactly the info I was needing.

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