Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 234Get this manual

Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 234

CAMSHAFT AND VALVES

5Measure: Valve stem runout Out of specification Replace the valveValve stem runout limit: 0.016 mm (0.0006 in)