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  1. #1
    Pete1027's Avatar
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    2010 RXTX 260 failing under high rpm

    Really need some help guys....

    My stock standard ski had its electronic throttle body replaced a few months ago. Dealer replaced it with a new one. I havent ridden it since and that was quite a few months ago.

    I now find the battery is flat. No probs i disconnect it and charge it up. Ski starts and runs.

    On the water it runs great, boosts really well but if i gun it and it passes over the 7000 mark is appears to hit a limiter and the revs drop down to about 3000. On one occasion i got what i think was a long beep and an engine check light but once the revs dropped down the beeping stopped and light went out.

    Any ideas as to whats wrong?

    I also noticed that scrolilng through my dash the peak recorded rpms/speed were a lot lower than what i had been doing?

    Would the battery going flat cause some sort of issue?


    Cheers.

    Pete.


  2. #2
    JT jpt7779's Avatar
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    First thing I would check is that the clamps from the SC to IC and IC to TB are tight and secure. Sounds like a huge boost leak especially since you just had the TB replaced.

  3. #3

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    Hey Pete, i had the exact same problem on my 2011 rxtx, i would be going along at 7000+ rpm for a few seconds and then i got the same long beep and and check engine light, turned out to be a over temp in the exhaust, since you have had the ski sitting for a few months and its been sitting with salt water in the exhaust i would feel safe telling you that the salt clogged or partially restricted one of the passages in the exhaust system, you should try to flush out the system really well with fresh water, i bet after a good flush it will be fine, and then make sure you don't let it sit for that long again without running fresh water through the exhaust first

  4. #4
    wotxxxsd's Avatar
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    If your ski is stock it has a junk drive shaft. They are known to strip out. Use the search function on here and you will find some threads on drive shaft failures..

    I've personally seen 3 that have stripped...

  5. #5
    stuckmoto's Avatar
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    I had similar issues a couple seasons ago when my IAT sensor went bad. Guess you haven't scrolled through the dash for codes?

  6. #6
    Pete1027's Avatar
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    The dash doesn't have any permanent codes, the engine light comes on and when the engine revs drop, the fault disappears. What RXTXRUSS says makes sense though. the engine manual states that a long beep is a over heat alarm.

  7. #7
    Pete1027's Avatar
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    I recently had the exhaust water box out with intention of putting a TDR box in. I never put the TDR box in as i found a fault with TDR box. So i put the old box back in. Maybe i have done something wrong in putting it back.

  8. #8
    www.eastcoastpwc.net Scott's Avatar
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    Make sure the water box temp sensor is connected properly

  9. #9
    wotxxxsd's Avatar
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    Sounds like you might have hooked something up wrong when you messed with the exhaust.

  10. #10
    Pete1027's Avatar
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    Ill check it out. Cheers people.

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