Product Detail Yamaha Motorcycle 2 Stroke Offroad Part Number 8267D150 Bore Size 41.5 mm Clearance 0.05 mm Compression Height 24.9 mm Compression Ratio Cylinder No. 1 Cyl./Kit Displacement Dome Volume Engine Code Piston Weight 61 g Stroke 39.2 mm Valves/Cylinder Gasket P/N Lock P/N CW10 Pin P/N WP105 Ring Set P/N RSB4150 Rod P/N Product Fitment