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  1. #1
    12timeworldchamps's Avatar
    Join Date
    Feb 2006

    rxt-x pump tunnel whats this?

    I have 54 hrs on the rxt-x and after riding today I notced I was down in rpms. Starting out, I was about 100 rpms down. After heat soak set in I was down about 200 rpms. I used to always be around 8000. I'm running a mod stock grate and nopas. So i pulled the pump and will flip the wear ring. Prop looks good and the ring has a very small bit of wear to it.

    When I pulled the pump though I did notice a greenish colored gasket with a washer at the 11 oclock position where the pump mounts to the ski. What is that for?

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  2. #2
    Vern's Avatar
    Join Date
    May 2005
    Grand Haven, MI
    That is a restrictor that reduces the water flow off the pump bleed. The water that comes off the pump bleed goes through that restrictor then to the intercooler, then to cool the exhaust and back out the waterbox and exhaust exit.

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