Yamaha YZ450FX 2023, Owner'S Manual

Page: 64 / 164

ENGINE
3-16
j. Install the silencer cap “15” and rivet “16”.
TIP
• Apply heat-resistant sealant to the areas “e”
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 silencer body “17”.
6. Check:
•
Gasket “1”
Damage

Replace.
7. Check:
•
Tightening torques
8. Install:
•
Exhaust pipe protector
EAM30210
CHECKING THE COOLANT LEVEL
WARNING
EWA13030
A hot radiator is under pressure. Therefore,
do not remove the radiator cap when the en-
gine is hot. Scalding hot fluid and steam may
be blown out, which could cause serious in-
jury. When the engine has cooled, open the
radiator cap as follows:
Place a thick rag or a towel over the radiator
cap and slowly turn the radiator cap counter-
clockwise toward the detent to allow any re-
sidual pressure to escape. When the hissing
sound has stopped, press down on the radi-
12
1 3
14
17
15
e
16 15
17
1
1
Exhaust pipe nut “1”
10 N·m (1.0 kgf·m, 7.4 lb·ft)
Exhaust pipe clamp bolt “2”
12 N·m (1.2 kgf·m, 8.9 lb·ft)
Exhaust pipe clamp bolt “3”
12 N·m (1.2 kgf·m, 8.9 lb·ft)
Silencer bolt (rear) “4”
30 N·m (3.0 kgf·m, 22 lb·ft)
Exhaust pipe protector screw
10 N·m (1.0 kgf·m, 7.4 lb·ft)
LOCTITE®
T
R
.
.
1 1
2
4
3
T
R
.
.