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  1. #1
    XxAlexX's Avatar
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    May 2015
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    2007 Yamaha gp1300r build

    Hey guys, I have a 2007 gp1300r and I wanted some advice on preparing the hull the best way possible performance wise


  2. #2
    XxAlexX's Avatar
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    May 2015
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    Gp1300

    Quote Originally Posted by XxAlexX View Post
    Hey guys, I have a 2007 gp1300r and I wanted some advice on preparing the hull the best way possible performance wise
    So I completely striped the motor and had the crank welded. I'm ordering the 87mm pistons from Group K for the 1390 upgrade. Can anyone give me a lead way on how I should do the porting? I have pretty good knowledge on how to go about doing this but maybe someone has a few hints and tricks to get the best performance. Also can anyone help me go over everything needed to cover all the details? Thanks

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