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  1. #1
    Matt Hill's Avatar
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    GPR Head Bolt Length/Pitch?

    Guys, it's a long shot, but I'm not sure if anyone has the ability to measure some head bolts for me?

    I'm looking to replace the stock M8 bolts on a GP800R with some better hardware. I snapped a stock bolt, which I assume to be TTY last weekend. Luckily, I was able to grab a replacement while out of town at a nearby dealer, but I'd like to avoid the situation when I replace the used gasket this upcoming weekend. I'd measure the bolts myself, but I left the skis 7 hours from here at my lake house.

    I know the bolts are M8. I'm not 100% positive on lengths or thread pitch. I didn't have my gauge with me. There are of course 10 short bolts and 2 longer bolts...

    Figured I'd check here before I just winged it...

    I'd rather swap to some quality reusable hardware than use these old and stretched stockers or even just new OE bolts. I come from the automotive racing side of things and I'm used to upgrading fasteners a bit...

    I appreciate the help!


  2. #2
    VdeKock's Avatar
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    Try to find a service manual...
    at my Gp1300 the bolts are 8x55 en 8x65 for the loger ones...in mm
    pitch was M8x1.25

  3. #3
    Matt Hill's Avatar
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    Quote Originally Posted by VdeKock View Post
    Try to find a service manual...
    at my Gp1300 the bolts are 8x55 en 8x65 for the loger ones...in mm
    pitch was M8x1.25
    Thank you. I didn't realize the bolt lengths were in the manual (which I have in both print and pdf formats). I looked right past the lengths.

    I picked up some stainless ARP bolts for it.

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