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  1. #1
    Cadet
    Join Date
    Mar 2004
    Location
    Oz
    Posts
    4

    Default Yamaha 90hp Prime Start

    I have just replaced the prime start diaphragm on my 1996 Yamaha 90hp (600 hrs) for the second time in 40 hours. Fuel has always been cleaned through CAV filter (new) and as such, no water present past filter and carby bowls showing no signs of sediment. Is there perhaps a probable cause for this continuing failure?

  2. #2
    Moderator JB's Avatar
    Join Date
    Mar 2001
    Location
    The Hideout, Whitt, TX, USA
    Posts
    45,239

    Default Re: Yamaha 90hp Prime Start

    Moving to Yammy Troubles.

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