Want big power? GY6 Big Bore & Stroker Explanation

A detailed explanation of engine displacement and the relationship of “bore x stroke” to the power production of your engine...
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GY6 Valve Adjustment Guide

Valve “lash” is the technical name for the gap between the valve and tappet.  The lash is critical to a...
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GY6 Camshaft Installation Guide

Installing a new performance camshaft is about a 45 minute job, and the engine doesn’t need to be removed.  Only...
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HOW TO: GY6 Big Bore Kit Prep

“How do I machine my engine cases for the big bore kit?” It’s the most common question we get about...
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Easy GY6 Cam Timing Guide

Top Dead Center refers to the piston being at the very top of its travel in the cylinder. Otherwise known...
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