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bubbling noise

  1. Coolant problem

    New Member Introductions
    hi ive got an zx9rb wich once it gets hot it sounds like a kettle boiling but no leaks anywhere the person that had it before me had the fan on a switch so could be on all the time. Ive changed the thermostat and change the coolant but it still dose it im thinking head gasket but there was no...
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