2004 Yamaha WaveRunner VX110 Sport and VX110 Deluxe Service Manual, Page 162Get this manual
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VALVES AND VALVE SPRINGS
4 Measure: Valve stem diameter Out of specification Replace the valveValve stem diameter a: Intake valve: 3.9753.990 mm (0.15650.1571 in) Exhaust valve: 4.4654.480 mm (0