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  1. #1

    2004 XP DI - Cannot Start After Hydrolocking Motor

    Hey guys,

    I recently hydrolocked my 2004 Sea-Doo XP DI.

    Here is a video of it trying to start:



    -Once realizing the engine took on fresh water I only tried starting the engine once -- nothing happened and I don't believe any internal damage occurred
    -Once I got home I pulled the spark plugs and air cylinder hose and cleared the heads (30 ft. high water geysers)
    -I sucked/drained all fuel and oil reservoirs and lines
    -I resupplied them with fresh oil and 94 octane gas
    -I inserted new spark plugs
    -Battery is fully charged each time I try to start the jetski
    -Fuel injectors have been ultrasonically cleaned & tested are a "Like-New" condition
    -Air injectors were tested and one is rated at 97CC and another at 91CC

    The engine turns over and is close to firing, especially when I release the gas sometimes, however it doesn't quite catch. The shop that tested the air injectors said they only like to see 1-2 CC differences on the air injectors... However I'm unsure if this could be the problem as to why its not starting.

    When I pulled the plugs there is a thin film of oil on the ring.



    I'm stumped on what to test/do next... Any thoughts, ideas, comments, concerns?

    Thanks
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  2. #2

    Join Date
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    That looks to be milky on the plugs. Probably still water in the bottom of the block. And i bet you started the death clock on that 951 if you havnt bent a rod already.

    Have you pored some gas down the cylinders. A cap full or less. See if it bust off. Also what's the compression.

  3. #3
    Hawaii's Avatar
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    Not buried yet get that thing started and run it like you stole it add some oil to the plugs keep the batt chrged

  4. #4
    Hawaii's Avatar
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    If you hydro l. You ant gonna get turnover. I bet you sub merged that donkey

  5. #5
    Hawaii's Avatar
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    Im idiots action stop looking at them plugs and getter started your skis life depends upon it

  6. #6
    Hawaii's Avatar
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    Prime all lines

  7. #7
    DanSquires's Avatar
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    have you checked your fuel pressure when cranking?

  8. #8

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    You are likely fouling the plugs because there is still traces of water in crankcase. Spraying WD-40 in plug hole will speed up the process. If it doesnt start right up, dont keep cranking. Remove plugs, clean the water off them and spray more WD. You have less than a week to resolve or serious damage occurs. Seadoo manual covers this in detail, you should read it.

  9. #9
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    if you didn't clear the air compressor you're done after sinking.

    DI 951's are just money pits waiting to be discovered.

    on a 951 48 hours is the death clock for the crank and counterbalance bearings

    if water got into the tank you don't have long to clear that mess up too.

    good luck

  10. #10
    dan87951's Avatar
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    Did you take the plugs out and crank the ski over to remove as much water from the cylinders as possible? After that insert the plugs and try and start. You will probably have to remove the spark plugs a million times and dry them before it will finally start. As others have stated the moment you get that thing running head to the lake and drive it for a good hour. Time is not on your side.

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