The GYTR YZ125 Performance Kit is a comprehensive bolt-on engine kit developed to increase power and improve throttle response while maintaining strict Yamaha reliability standards.

The kit includes:

<ul>
	<li>GYTR CNC Ported Cylinder</li>
	<li>GYTR Two Piece Head</li>
	<li>GYTR Tuned CDI</li>
	<li>GYTR High Compression Piston Assembly (two per kit)</li>
	<li>GYTR Exhaust Valves</li>
	<li>GYTR Jetting Kit&nbsp;</li>
	<li>V Force 3 Reed Valve</li>
	<li>GYTR Silencer</li>
	<li>GYTR Pipe</li>
	<li>GYTR Carbon Fiber Ignition Cover</li>
</ul>

&nbsp;

Note: Requires high-octane race gas or 91 octane or higher pump fuel&nbsp;

<ul>
	<li>Titanium / steel exhaust system</li>
	<li>Yamaha recommended jetting specification</li>
</ul>

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GYTR YZ125 Performance Kit

Details

Designed to fit these products