Yamaha 25BMH 30HMH Factory Service Manual, Page 300Get this manual

DRIVE SHAFT
CHECKING THE PINION AND FORWARD GEAR
Check: Teeth Dogs Damagewear Replace
CHECKING THE DRIVE SHAFT
Check: Drive shaft Damagewear ReplaceMaximum runout 0.5 mm (0.020 in)

CHECKING THE BEARINGS

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