Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 236Get this manual

Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 236

CAMSHAFT AND VALVES

Camshaft inspection 1Measure: Camshaft lobe dimensions and Out of specification Replace the camshafta Camshaft lobe diameter: IN: 23.89523.995 mm (0.94070.9447 in) IN: 19.95020.050 mm (0.78540.7894 in) EX: 23.91724.017 mm (0.94160.9456 in) EX: 19.95020.050 mm (0.78540.7894 in) Valve guide replacement Replacement steps:
NOTE: Heat the cylinder in an oven to 200 (392 F) to ease valve guide removal and installation and to maintain the correct interference fit

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