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.
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.