YAMAHA YZ YZF YZ-F WR WRF 125 250 400 426 450 FORK AIR BLEEDER VALVES. Yamaha YZ YZF WR WRF 125-450. The AS3 Performance air bleeder valves make bleeding your forks quick and easy, they screw in to the top of your forks in place of the bleeder screw and all it takes is a simple push of the button at the top of the valve.
