Yamaha Motor YZ250F 2005 Manuel D'atelier Du Proprietaire page 580

SWINGARM
13. Install:
• Bolt (lower chain tensioner) 1
• Washer 2
• Collar 3
• Lower chain tensioner 4
• Nut (lower chain tensioner) 5
14. Install:
• Drive chain support 1
• Drive chain support cover 2
• Bolt {drive chain support
[ = 50 mm (1.97 in)]} 3
• Nut (drive chain support) 4
• Bolt {drive chain support cover
[ = 10 mm (0.39 in)]} 5
5 - 61
CHAS
16 Nm (1.6 m · kg, 11 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)