BUY THIS 171cc KIT:
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BUY OUR COMPLETE 61MM BIG BORE KIT:
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BORE TOOL:
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ENGINE WORK STAND:
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Valve lash .004-.005

If you are a newby and have no idea how to install a big bore kit on your GY6. No problem. this " how to install a big bore kit" video will walk you through the entire thing. No special tools needed! If you find this video helpful and want to support us please join our patrion page!

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