High-performance replacement cylinder head kit designed for the Yamaha YZ250 (1999–onward models). It features durable C630 bronze valve seats, an unshrouded combustion chamber for improved airflow.
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High-performance replacement cylinder head kit designed for the Yamaha YZ250 (1999–onward models). It features durable C630 bronze valve seats, an unshrouded combustion chamber for improved airflow.