Yamaha YZ250 2021, Owner'S Manual

Page: 54 / 148

ENGINE
3-10
TIP
Remove the inner pipe while holding the silencer
in place with a vise etc.
b. Remove the inner pipe “1”.
c. Replace the fiber “2”.
d. Install the inner pipe.
TIP
Apply heat-resistant sealant to the areas shown,
making sure that there are no gaps in the beads
of sealant.
5. Check:
• Gasket “1”
Damage

Replace.
TIP
Install the gaskets with their depressed “a” fac-
ing outward.
6. Check:
• Tightening torques
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-
ator cap and turn it counterclockwise to re-
move.
1. Stand the vehicle upright on a level surface.
2. Remove:
• Radiator cap “1”
3. Check:
•
Coolant level
Maximum level “a” or below

Add coolant
New
Fiber bolt “1”
10 N·m (1.0 kgf·m, 7.4 lb·ft)
LOCTITE®
Silencer bolt “2”
12 N·m (1.2 kgf·m, 8.9 lb·ft)
LOCTITE®
Side cover bolt
7 N·m (0.7 kgf·m, 5.2 lb·ft)
T
R
.
.
LT
LT
2
2
1
1
1