1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 98Get this manual
IpOWRlal_p_IS_TO_N_S C_I_= Piston pin and bearing inspection 1Inspect: Piston pins Bearings Signs of heat discoloration Replace
2Measure: Piston pin outside diameter (with micrometer CD) Out of specification Replace
Piston pin outside diameter: Standard 21.99522.000 mm (0.86590.8661 in) limit 21.98 mm (0.865 in)