Installing The Exhaust Pipe And Muffler - Yamaha YZ450FP 2023 Owner's Service Manual

Engine mounting bolt (upper
side)
45 N·m (4.5 kgf·m, 33 lb·ft)
TIP
• Apply molybdenum disulfide grease to the piv-
ot shaft.
• Apply lithium-soap-based grease onto the
threads and contact surface of the pivot shaft
nut.
2
8
M
4
3
EAM30167
INSTALLING THE EXHAUST PIPE AND
MUFFLER
1. Install:
• Gasket
New
• Exhaust pipe 1 "1"
• Exhaust pipe nut "2"
Exhaust pipe nut
10 N·m (1.0 kgf·m, 7.4 lb·ft)
TIP
First temporarily tighten all nuts to 7 N·m (0.7
kgf·m, 5.2 lb·ft). Then retighten them to 10 N·m
(1.0 kgf·m, 7.4 lb·ft).
8
9
7
7
9
6
1
4
5
ENGINE REMOVAL
1 1
2. Install:
• Exhaust pipe 2 clamp
• Exhaust pipe 2 "1"
• Exhaust pipe bracket bolt "2"
2 2 2
TIP
Make sure that the clamp "3" does not ride on
the projection "a" on the exhaust pipe "4" or si-
lencer "5". Be sure to insert the projection "b" into
the slot in the exhaust pipe (or silencer).
A
4 3
A. Exhaust pipe 1 and exhaust pipe 2
B. Exhaust pipe 2 and silencer
3. Install:
• Silencer clamp
• Silencer "1"
• Silencer bolt "2"
Silencer bolt
30 N·m (3.0 kgf·m, 22 lb·ft)
5-8
1 1
B
5 3
a
b
2 2
a
b