Moto Tassinari PAIR Vforce V4144-2 Yamaha Banshee YFZ 350 V Force 4 Reed Valves

  
Moto Tassinari PAIR Vforce V4144-2 Yamaha Banshee YFZ 350 V Force 4 Reed Valves. Moto Tassinari PAIR Vforce V4144-2 Yamaha Banshee V Force 4 Reed Valve Cages (Qty 2 In Box). Yamaha RD250, RD350 and RD400 (see note below).

Yamaha RD250, 350 & 400 owners please note. Installing these reed valves will require modification of the intake port of the cylinders. While the bolt pattern is the same, the valve will not just slide in. Material removal on the intake port walls will be required. The all-new VForce4 is built upon the solid foundation that has made the VForce3 such a success for the last 10 years.

While the VForce3 has been continually refined over the years, 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 been significantly changed since the VForce3.