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  1. #1

    Join Date
    Aug 2013

    gwowling or rattling type sound at idle

    have a 2002 Yamaha suv 1200 that has a loud rattling sound at idle.under load it goes away.what could be causing this noise?

  2. #2
    just your normal yami chatter

  3. #3
    Myself's Avatar
    Join Date
    May 2007
    North Central Arkansas
    Pump bearings falling apart. Pull the pump for inspection.

  4. #4
    almost every gp 1200 ive worked on rattles like a spray paint can. Not 100% sure but the yamaha rings have the least amount of spring tension compared to other makes. It takes very little effort to compress them - I personally think this is cause.

  5. #5
    Chatter comes from the dampner between the engine and the pump

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