Yamaha Marine Outboards F4A/F4 Factory Service Manual, Page 190Get this manual

CRANKCASE, CRANKSHAFT AND CAMSHAFT
2Measure: a

9Camshaft lobe dimensions and b

Out of specification Replace the camshaftCamshaft lobe dimension: IN26.73626.836 mm (1.05261.0265 in) IN: 21.95022.050 mm (0.86420.8681 in) EX: 26.53226.623 mm (1.04421.0481 in) EX: 21.95022.050 mm (0.86420.8681 in)

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