1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 167Get this manual
!POWR! iil:! CAMSHAFT AND VALVES Rocker arm and rocker arm shaft inspection 1Measure: Rocker arm inside diameter Rocker arm shaft outside diameter CQ) Out of specification Replace the defective part(s) Rocker arm inside diameter: 16.00016.018 mm (0.62990.6306 in) Rocker arm shaft outside diameter: 15.97115.991 mm (0.62880.6296 in) Camshaft inspection 1Measure: Camshaft lobe dimensions and CQ) Out of specification Replace the camshaftCamshaft lobe dimension: IN: 30.88430.984 mm (1.21591.2198 in) CQ) IN: 25.9526.05 mm (1.0221.025 in) EX: 30.88430.984 mm (1.21591.2198 in) CQ) EX: 25.9526.05 mm (1.0221.025 in)