Yamaha YZ450FA 2011 Owner's Service Manual page 118

2. Install:
• Silencer clamp (front)
• Eexhaust pipe 2 "1"
• Bolt (exhaust pipe 2) "2"
Install and temporarily tighten the exhaust pipe
2 with its end positioned as shown with respect
to the exhaust pipe 1.
3. Install:
• Silencer clamp (rear)
• Silencer "1"
• Bolt (silencer) "2"
Bolt (silencer):
30 Nm (3.0 m•kg, 22 ft•lb)
Install and temporarily tighten the silencer so
that its joint is positioned as shown with respect
to the exhaust pipe 2.
3 - 7 mm (0.12 - 0.28 in)
4-7
EXHAUST PIPE AND SILENCER
4. Install:
•Bolt (exhaust pipe 2):
Bolt (exhaust pipe 2):
20 Nm (2.0 m•kg, 14 ft•lb)
•Silencer clamp (front):
Silencer clamp (front):
12 Nm (1.2 m•kg, 8.7 ft•lb)
•Silencer clamp (rear):
Silencer clamp (rear):
16 Nm (1.6 m•kg, 11 ft•lb)
Tighten while checking that their front and rear
joints are inserted in position.