Vertex Top End Gasket Kit for 1990 99 KTM 250 SX EXC 810327 1987 Yamaha PW80 the Daytona 650 (2005) and the Daytona 650 (2005) and the Speed Four 600 (also Speed 4) from 2002 though 2006 1997 Yamaha YFM350FW Big Bear These sets include the head Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Winderosa Top End Gasket Set Part Number 810327 Fitment Type Unit Sale Qty Kit Style Material Color Size Finish Position Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Piston Cylinder Size Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End Tip Style Windshield Height Windshield Width Handlebar Diameter California Air Resource Board Compliance FALSE Product Disclaimer