Yamaha 90 tunning for offshore 3B

Discussion in 'Outboards' started by PetterM, Feb 27, 2009.

  1. PetterM
    Joined: Sep 2004
    Posts: 211
    Likes: 9, Points: 28, Legacy Rep: 201
    Location: Norway

    PetterM Senior Member

    Does anyone have a list of what modifications that can be done to the yamaha 90 in the blueprinting/tunning process for offshore 3B?
  2. powerabout
    Joined: Nov 2007
    Posts: 2,925
    Likes: 66, Points: 48, Legacy Rep: 719
    Location: Melbourne/Singapore/Italy

    powerabout Senior Member

    check the UIM site for the rules assuming it is a UIM class?
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