2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 59Get this manual
ENGINE Sportsman 500 H.OEngine Service Data (EH50PLE 498cc Fuel Injected and Carbureted)
Cylinder HeadValve Rocker arm ID Rocker Arm Rocker shaft OD Rocker shaft Oil Clearance In Cam lobe height Ex Camshaft Camshaft journal OD Camshaft journal bore ID Camshaft Oil clearance Cylinder Head Surface warpage limit Standard height In Valve Seat Contacting width Ex Valve Guide Inner Diameter Protrusion above head In Valve Margin thickness Ex Stem diameter Std Limit Std Limit In Ex Valve Stem Oil clearance Std Limit Overall length Overall length Valve Spring Squareness Inner In Ex Std Limit In Ex Std Limit Std Limit Std Limit Std Limit Std Limit Mag PTO Mag PTO Std Limit EH50PLE (498cc) .8669-.8678"(22.020-22.041 mm) .8656-.8661 (21.987-22.0 mm) .0008-.0021" (.020-.054 mm) .0039" (.10 mm) 1.2884-1.2924" (32.726-32.826 mm) 1.2766" (32.426 mm) 1.2884-1.2924" (32.726-32.826 mm) 1.2766" (32.426 mm) 1.4935-1.4941" (37.935-37.950 mm) 1.4935-1.4941" (37.935-37.950 mm) 1.4963-1.4970" (38.005-38.025 mm) 1.4963-1.4970" (38.005-38.025 mm) .0022-.0035" (.055-.090 mm) .0039" (.10 mm) .0020" (.05 mm) 3.870" (98.3 mm) .028" (.7 mm) .055" (1.4 mm) .039" (1.0 mm) .071" (1.8 mm) .2362-.2367" (6.0-6.012 mm) .689-.709" (17.5-18.0 mm) .039" (1.0 mm) .031" (.8 mm) .047" (1.2 mm) .031" (.8 mm) .2343-.2348" (5.950-5.965 mm) .2341-.2346" (5.945-5.960 mm) .0014-.0024" (.035-.062 mm) .0016-.0026" (.040-.067 mm) .0059" (.15 mm) 3.976" (101.0 mm) 3.984" (101.2 mm) 1.654" (42.0 mm) 1.575" (40.0 mm) .075" (1.9 mm)