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  1. #1
    Hydrotoys's Avatar
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    GPRXP and the Skat pump

    Carl from Island, got me thinking about the Skat Trac Setback Magnum pump and the conversion skis, with his excellent post in the 2strk section. Basically, he was talking about improving the already excellent stock pump system on the GPR.

    Now, believe it or not, the Skat Trac Setback Yami pumps are very different internally, than the stock Yami pump. They are NOTORIOUS for burning up bearings too compared to the stock Yami pumps. Culprit NUMBER ONE, is the bearing style used in the Skat SB pump. This should not apply to the magnum pumps that are NOT setback. Those are generally the same internal system as the stock pump, and use the stock driveshafts. It's the aftermarket driveshaft system and Skat track Setback pump that I'm refering to.

    A quick inspection is in order if you have a Skat Trac setback pump.
    • Pull off the rear cone. Clean out some grease so that you can see the bearing.
    • If it has a cover over the bearing, and you can't see the balls and races, then you need to upgrade.
    • If they are open style cages, then MORE THAN LIKELY, you are okay.
    Call Dave at Impros, and quite possibly Carl at Island. I think Randy at watcon.com also has the better bearings. Do NOT used the sealed bearings. Consider using a sythetic mix of bearing grease and gear lube, trending toward the runny side inside the pumps.

    Bearings used in the skat pump. Supposedly an "upgrade" over the stock Yami bearings, but I've seen so many fail over the years, I don't like using them anymore.
    Last edited by Hydrotoys; 01-07-2008 at 05:08 AM.


  2. #2
    Hydrotoys's Avatar
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    Setback vs 2002 stock pump


    Setback with prop removed.
    Last edited by Hydrotoys; 01-07-2008 at 05:07 AM.

  3. #3
    Hydrotoys's Avatar
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    05 pump and a Skat Setback pump.


  4. #4
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    cant wait to try mine 12 vein setback 158mm. oohhhhhhhh baby

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