Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 137Get this manual

CYLINDER BODY ASSEMBLY
2Measure: Piston pin diameter (with micrometer) Out of specification ReplacePiston pin diameter 25.99526.000 mm (1.02341.0236 in)

3Measure: Piston pin boss diameter (with micrometer) Out of specification ReplacePiston pin boss diameter 26.00426.015 mm (1.02381.0242 in)

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives