1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 101Get this manual

ASSEMBLY AND ADJUSTMENT
4C alculate th shi thickn ess (T3)Shim thickness (T3)Measured value (M) mm0.2 mm P100 mm

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