Yamaha YZ450FA 2011, Owner'S Service Manual

Page: 117 / 318

4-6
EXHAUST PIPE AND SILENCER
Except for USA and CDN
1. Remove:
• Rivet (front) "1"
• Inner pipe "2"
• Take care not to damage the rivet fitting
holes (ø4.9 mm) "a" in removal.
• Do not hit the silencer stay "b" as it may do
damage to the silencer.
Remove the inner pipe while holding the silenc-
er in place with a vise etc.
2. Replace:
• Fiber "1"
3. Install:
• Inner pipe "1"
• Rivet (front) "2"
• Band "3"
• Apply heat-resistant sealant to the areas "a"
shown, making sure that there are no gaps in
the beads of sealant.
• Take care not to allow the fiber out of place
when installing the inner pipe.
• Install the band "3" with the mating ends "b"
positioned as shown.
INSTALLING THE SILENCER AND
EXHAUST PIPE
1. Install:
• Gasket
• Exhaust pipe "1"
• Nut (exhaust pipe) "2"
First temporarily tighten both nuts to 7 Nm (0.7
m•kg, 5.1 ft•lb). Then retighten the same nut to
10 Nm (1.0 m•kg, 7.2 ft•lb).
Nut (exhaust pipe):
10 Nm (1.0 m•kg, 7.2 ft•lb)