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  1. #1
    Sly Fox DKFox's Avatar
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    Feb 2009
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    Huntsville, Alabama
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    103

    Hard to start... rotary valve clearance usually too high or too low?

    1995 SeaDoo XP with 717 engine. All stock. After warmed up good it is difficult to start, but runs like a champ until turned off again.

    I know this is usually a clearance issue between the rotary valve and the cover. When I finally get around to checking this small distance accurately in the garage... can I expect it to be too high or too low of clearance? I was trying to think through mechanics of how either one would cause the hard start.

    Somebody want to explain?? Thanks!


  2. #2
    Leaky needles and seats. Check your popoff pressure and replace needles and seat with OEM.

  3. #3
    Sly Fox DKFox's Avatar
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    Feb 2009
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    Huntsville, Alabama
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    103
    Last year when I bought the ski I replaced all fuel lines. I rebuilt the carbs with the standard Mikuni kits... but of course they don't include the needles and seats. Are there any other signs of a bad needle and seat? Like gas pouring out the bowl?? Haven't noticed that. But it makes sense that I could be loading up the carb whenever the ski is turned off.

    This ski would take two 1.2's. Last N/S I ordered was from Atlantic Jet Sports. I think ~$17 each plus way too much shipping charges. (It was a $10 shipping fee even for a single N/S, two carb screws, and a pair of wafer thin carb check valves! I would have appreciated an envelope and a $0.49 stamp!!) Anybody know of better pricing or is that still about as low as they come?

  4. #4
    Sly Fox DKFox's Avatar
    Join Date
    Feb 2009
    Location
    Huntsville, Alabama
    Posts
    103
    Last year when I bought the ski I replaced all fuel lines. I rebuilt the carbs with the standard Mikuni kits... but of course they don't include the needles and seats. Are there any other signs of a bad needle and seat? Like gas pouring out the bowl?? Haven't noticed that. But it makes sense that I could be loading up the carb whenever the ski is turned off.

    This ski would take two 1.2's. Last N/S I ordered was from Atlantic Jet Sports. I think ~$17 each plus way too much shipping charges. (It was a $10 shipping fee even for a single N/S, two carb screws, and a pair of wafer thin carb check valves! I would have appreciated an envelope and a $0.49 stamp!!) Anybody know of better pricing or is that still about as low as they come?

  5. #5

    Join Date
    Mar 2011
    Location
    Leduc Alberta Canada
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    54
    Dare I say...
    Chris at Water Craft Magic ??

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