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  1. #1

    diference between 650 & 650x

    As the title says, what's the difference? they're the same except for the rotary valve and the 5 wire stator. will the rotary valve work on the 650 or not and would it make a difference.


  2. #2
    ...Lighting The Water On Fire Since '04 duramaxxed's Avatar
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    As far as I know, just the horsepower, the 657 has 80 horses and the X model has 85.

  3. #3
    so the 159 degree valve that the 650x has will work even if the 650 has a 147.

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    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    Quote Originally Posted by evil4g63 View Post
    As the title says, what's the difference? they're the same except for the rotary valve and the 5 wire stator. will the rotary valve work on the 650 or not and would it make a difference.
    The main difference is the cases on the 650x are 1mm taller than the 650 this was done to help with detonation issues in the original 650s.

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