Yamaha YZ250F(R) Owner's Service Manual page 261

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 - 57
CHAS
20 Nm (2.0 m · kg, 14 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)