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  1. #1

    Xlt1200 big issues

    Hey my mate has got a xlt1200 2001 model with a 69e motor. The story is that the oil gauge stopped working and ran out of oil, so a jet ski place rebuilt tho hole motor bottom up. ski runs all ok until you go full throttle for about 5 sec then it dies down to an idle, It also has a bad flat spot at half throttle.
    Now the jet shop have look at it and rebuilt the carbs for the 2nd time and replaced reed vavles still the same no diffrent.

    1 i was thinking of an acl pump on carbys
    2 maybe pistons in back to front (seen it done before)
    3 block in fuel system

    Any help would be great thanks for your time.


  2. #2
    Just pulled off fuel flap in tank looks ok dont think this is the cause.

  3. #3
    Hydrotoys's Avatar
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    Very possible that the return and supply lines are swapped on the carbs.

  4. #4
    Ok i will check that now, how will i know. Also the white water seprater has a hos from the tank to it then a hose going to nothing is this the breather?

  5. #5
    Hydrotoys's Avatar
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    Do you not have a manual?

  6. #6
    Chris03HD's Avatar
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    Quote Originally Posted by 66V View Post
    Ok i will check that now, how will i know. Also the white water seprater has a hos from the tank to it then a hose going to nothing is this the breather?
    Off the tank is four tits. The two 90* ones are the feeds (ON/RES). The IN on the carbs, is the rear most bottom fitting/hose.
    The other two tits at the tank are vent and return line. The top line on your carbs is the return.

    Depending on if you still use the fuel selector or not, just bypass it all together and run both IN lines off tank, to the carbs. You will need to pull the sending unit in tank and extend the ON line to match the length of the RES, or just leave it as is.

  7. #7
    Well put ski in the ater just now and swaped the fuel lines over from the filter to tank vise verser, ski run no better is worse than before put back hose still holding flat out power for 5 sec then dies real quick.
    Thanks so far yfor your help this web site is great.

  8. #8
    Well going to pull it apart to look at the exhaust and fuel system, dont realy know what im looking for but maybe i will find somthing

  9. #9
    Do xlt have some sort of limp home mode to make them loose power?

  10. #10
    Chris03HD's Avatar
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    Does it still have the factory cat con? Was the temp sensor plugged back in after the stinger was reinstalled? What's the compression in all three cylinders now?
    You swapped the fuel lines around, were they wrong to begin with?
    Where the carbs just cleaned, or completely rebuilt with all new gaskets, orings, diaphram, etc.?

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