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  1. #1

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    Aug 2009
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    08 Rxtx top speed of only 52mph??

    So just picked up an 08 rxtx. Lake test and it only ran 52mph. Weird thing is the rpm display showed a max of 5000 rpm but the dial portion got up to 8000. Pulled the charger has slip is 80inlb. Just out new plugs but wondering what else could cause this? No cavitation from stand still but haven't pulled the pump yet. Seller said ski sank at one point I it's life was was taken care of ASAP. Compression is all around 135. Display is new with 2hrs and motor has 108 per candoo system. Any advice??


  2. #2

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    Aug 2009
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    Speed was GPS. Oil was over the top bend but now down between the bends.

  3. #3
    Bob 1tommygunner1927's Avatar
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    Apr 2007
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    Houston, Texas
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    Rebuild the charger.

  4. #4

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    So I found out the Display has the wrong flash code since the RPM would only hit 5k, fuel gauge was not working and I was getting t codes instead of compass directions. Would this also affect the top speed by somehow affecting the ECU?

  5. #5
    grant's Avatar
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    Feb 2014
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    pa
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    how many keys does it have. my beginner key only allows my RXP to do 37mph, that may be a rental key which i know will let it run more than 37 but not the full 68 that it should.

  6. #6

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    I rebuilt the charger, new plugs and top speed on GPs was only 60mph. 7900-8100 RPMs. Wear ring looks fairly new. Any suggestions? could the intercooler line be plugged and not cooling the air properly? It also hesitates a bit from a dead stop to full throttle also. All hoses tight, not sure what to dig into next??

  7. #7
    Mod less, ride more! troyheb's Avatar
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    Jul 2007
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    Nederland, Texas
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    How many different skis do you have, that do not run the right mph for the rpms that they are turning?
    I count 3.

  8. #8

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    Just one now with issues, the 08 rxtx 255. My 05 rxt loosened up and is running 63 all stock. It was a fresh build on the motor. I am down to 5 4tec skies now since I just sold 1.

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