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Thread: low rpms?

  1. #1

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    low rpms?

    Hi guys, i am new to the form. I just bought a 05 rxp with 15 hrs on it. At full throttle it is only turning 7700 rpms but ran 68.3 on the gps (dont know if it matters or not) , i checked the oil level and it is about half way between the bends when hot. It should be around 8000rpms correct? what else chould i check?


  2. #2
    ADAMBOMB's Avatar
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    Welcome to the forums!! Does it still have stock washers in it? 7700 isnt that low. Maybe u have a bad wear ring.. I really dont think it is a sc issue but if u do have stock washers on the supercharger go ahead and change them out with the metal ones. to me i feel u have a bad wear ring. or a little to much oil.. could be a couple of things. i dont know if ur sc is slipping a little also

  3. #3

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    yes it does ordering the metal ones and the ceramic bearing soon. Where should the oil level be?

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    ADAMBOMB's Avatar
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    Quote Originally Posted by DKM View Post
    yes it does ordering the metal ones and the ceramic bearing soon. Where should the oil level be?
    When the engine is warm and the ski is level it should sit between the two bends.. i believe..

  6. #6

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    ok i will go recheck all of that. thanks alot.

  7. #7
    King_Of_Fun's Avatar
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    If the oil checks out OK, try taking 2-3mm out of the trailing edge of the impeller. This should get your rpms up to 8000. There's a nice proceduere in the how-to section... Ron

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