Namura Top End Rebuild Kit for Yamaha YFB250 YFM250 Models 70.95mm NA 40015K feed mpn 4666M05400 Product Details Product Line Namura Product Details Product Line Namura Top End Rebuild Kit Part Number NX 20080 CK Fitment Type Model Size Specific Fitment Use Type Aftermarket Replacement Unit Sale Qty Style Type C Standard Bore Piston Kit Size 47 Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Hot Rods Bottom End Rebuild Kit Part Number CBK0023 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 a top end gasket kit and wrist pin bearings (where applicable) are all included in this convenient 1996 Yamaha YFB250FW Timberwolf