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  1. #1
    rxp_boy's Avatar
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    a bit of a weird problem, can I have opinions please???

    Hi everyone

    Maybe someone can give his thoughts to me, last sunday i was at sea with a friend, both RXPs , mine is an 04 and his is an 05(both stock), warmed up engine and 1st run I got 67.9 @ 8100 rpms. And also raced him and beat him.

    Later on in the day he was beating me out of the hole all the time and pulls slowly more top than me. My boat had 66 hrs and his has 25 hours. We exchanged skis and when I rode his, the trottle was much crisper than mine and pulls much more than mine too !!! made me remember my ski when was new , what can be wrong with my ski ??? used to be more powerfull than it is now !! and i am going nuts.

    Can it be the the clutch is goin out or what ???

    Please help , dont want to do anymore damage


  2. #2
    START's Avatar
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    your's perhaps more sensitive to heat than his.
    You were still at 8100?

  3. #3
    rxp_boy's Avatar
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    no didnt turn it agian, even sea was becoming rougher, but if both skis are stock why mine is more sensitive to heat

  4. #4
    Site Admin Green Hulk's Avatar
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    No two skis are the same. RXP's will not run identically. Some will be faster than others.

    Change your wear ring!

  5. #5
    rxp_boy's Avatar
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    ok jerry

    I will change wear ring but why on the same day i was running better and at the end of the day he was beating the s*** of me ??

    Cant understand

  6. #6
    Site Admin Green Hulk's Avatar
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    Too many variables to say. Install a fresh wear ring and you will be shocked at the difference it makes for you.

  7. #7

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    If your ski is under warranty get the dealer to check the slip on the clutch
    Hulk covered the wear ring look for dings on impeller.
    WE TRY TO KEEP OURS BETWEEN 5-8LBS. Somewhere in the 3 to 4lbs you will notice a drop in mid range acceleration. When hot will loose rpms especilly in the chop.

  8. #8
    rxp_boy's Avatar
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    rxpstan

    Thats exactly what i am experiencing, when its hot i feel like loosing rpms and in chop especially it like it doesnt pull like it was when jumping and engage in water agian

    But anyway I will start by changing the wear ring and see what goes and will also check slipping moment

  9. #9
    Vern's Avatar
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    Stan, what do you do to the clutch if it is at 3 - 4 lbs? Do you need to add shims to get it back to the right slip? Does the drop to 3 - 4 lbs indicate worn ceramic discs and is it better to just replace them then, or shim the clutch? And is it 'accurate' to block the jet pump impeller and measure the torque on the supercharger impeller while still in the boat, or is it necessary to pull the supercharger to get an accurate reading? My RXP is in the barn for storage and I should do this (and some other things!) this winter ... have not had any problems nor had the supercharger off yet ... knock on wood!

  10. #10
    Site Admin Green Hulk's Avatar
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    If your slipping moment falls short of specs you can shim the clutch.

    You can measure it in the boat by blocking off the pump impeller with a broom stock, but the most accurate way is to go by the book and use the cam shaft locking tool. (you must remove the valve cover and have #3 piston at TDC)

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