V Force 4R Reed Valve Kit Yamaha Yz65 18-21 PRE3950 Unique hammer head

Unique hammer head

Fitted with 3 x 50mm medium grit hone stones

Isuzu :1996 – 2008

Made from durable

ohv and cvh car and truck engines with recessed valvesfeatures dual cam-action

V Force 4R Reed Valve Kit Yamaha Yz65 18-21 PRE3950 Unique hammer headThe VForce4 is built upon the solid foundation that made the VForce3 reed valve system such a success for over fifteen years. While the VForce3 has been continually refined over the years (including the latest VForce3R models), this is a complete redesign of the entire system. We jokingly say, The only thing we didn't change is the bolt pattern. However this is actually quite true. All the components that go into making a VForce reed valve system have