Yamaha YZ426F(M)/LC Owner's Service Manual page 524

SWINGARM
10. Tighten:
Nut (connecting rod) 1
11. Tighten:
Nut (relay arm) 1
12. Install:
Cap 1
NOTE:
Install the cap with its mark a facing forward.
13. Install:
Bolt [chain tensioner (lower)] 1
Plain washer 2
Collar 3
Chain tensioner 4
Nut [chain tensioner (lower)] 5
14. Install:
Chain support 1
Support cover 2
Bolt {chain support [r= 50 mm (1.97 in)]}
3
Nut (chain support) 4
Bolt {support cover [r= 10 mm (0.39 in)]}
5
5 - 56
CHAS
80 Nm (8.0 m · kg, 58 ft · lb)
80 Nm (8.0 m · kg, 58 ft · lb)
19 Nm (1.9 m · kg, 13 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)