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Thread: carb help

  1. #1

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    carb help

    rebuilt carb on 05 gti 717 now when you pull throttle on water seems like theres no change if i slowly pull throttle then hold and then mash it will rev up and run fine untill i stop then its back to the same thing


  2. #2
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    I assume to didn't check the carb pop off pressure..that controls the fuel flow. I you put in new needle seat AND spring you need to confirm the pressure.

    plenty of how to's on that posted here and on the web.

    To correctly diagnose, please list all the things you've done during the rebuild.

    first and foremost, check the spark plugs. what do they look like?

  3. #3

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    well i figured it out i dont know much about carbs im used to dealing with fuel injection. what happend was the rebuild kit i got had a differnt spring in it and i didnt realize that there were different variations but all is well

  4. #4
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    that's a common newbie pitfall, each spring in the kit is color coded, but in 90% of my carb builds, using the exisiting spring AND float arm assures good pop off with one adjustment or less. Only time I ever change springs is when the carb has a corrosion problem.

    you should still figure out how to measure pop off pressure as it's an important step in any carb rebuild.

    at the least you should do a plug chop to be sure you are getting enough fuel at wide open.

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