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  1. #1
    Speedling's Avatar
    Join Date
    Sep 2012
    Cedar Lake, IN

    suv1200 bore size standard?

    Got a '99 SUV 1200 triple here, it's reading 84mm bore, 68mm stroke.
    Has this thing been bored to heck or what? Looking to get some pistons and such and want to make sure it all reads correctly. What is standard bore and stroke?

  2. #2
    84mm is standard bore. Can't say on the stroke but I would bet that's standard as well...never heard of anyone stroking a NPV motor.

  3. #3
    Yamaha artisan Cutlass's Avatar
    Join Date
    Oct 2010
    Madison, WI, USA
    84mm is the standard bore and 68mm is the standard stroke.
    I've only seen a few stroked 65U engines here.

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