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  1. #1
    is thinking. grantuk's Avatar
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    Rotax Racing lightweight retainers and shims

    A full set of used Titanium valve spring retainers and shims for all Seadoo 4 tec engines which are fitted to the following RXP RXP-X RXT RXT-X and all other*models*fitted with the 4-Tec engine. These titanium retainers are the lightest on the market and still incredibly strong. At a mere 4.4 grams they are 40 percent lighter than stock. These retainers offer precise valve control for high rpm engines without the need for stiffer, power robbing springs.

    The shims are used to put more tension on the valve springs to reduce valve float even further

    If you are looking at fitting a Riva Racing or any other ECU you will need to change the valve caps/retainers.**You do not find items like this come up for sale often.**The retainers and shims have very little use.**

    $150 shipped.



  2. #2
    Steve STSPERFORMANCE's Avatar
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    what is very little use how many hours?

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