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  1. #1
    Davrac's Avatar
    Join Date
    Jan 2015
    Dubbo Australia

    Riva open loop cooling Fluctuating temp

    Hi All,

    I have an issue with a Riva Open loop kit. Kit has been installed with 160 Thermostat and been in ski for 2 years with no issue. Past 2 rides temp is fluctuating between 69C and 78C whilst cruising at 5k rpm. Previously it was constant 69-72 Temp spikes up to 86 if idling before I move and temp comes down. So far I have inspected the following -

    hose connections - Y piece and T Piece.
    verified thermostat working in boiling water

    for good measure I will be changing thermostat to rule it out.
    next step is pull pump and check water passages and strainer

    ski runs perfect otherwise. Any ideas of other areas to check?

  2. #2
    I’m thinking damage or obstruction. Curious to head what you find
    Last edited by 2Blown98; 10-25-2020 at 08:53 AM. Reason: Misspoke

  3. #3
    r1goombah's Avatar
    Join Date
    Jul 2015
    jersey shore
    swap out the temp sensor, its cheap and easy

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