Yamaha YZ450F Manuel D'atelier Du Proprietaire page 162

COOLANT REPLACEMENT
EC353011
COOLANT REPLACEMENT
WARNING
Do not remove the radiator cap when the
engine is hot.
CAUTION:
Take care so that coolant does not splash
on painted surfaces. If it splashes, wash it
away with water.
1. Place a container under the engine.
2. Remove:
Engine guard 1
G
Coolant drain bolt 2
G
3. Remove:
Radiator cap
G
Drain the coolant completely.
4. Clean:
Cooling system
G
Thoroughly flush the cooling system
with clean tap water.
5. Install:
Copper washer
G
Coolant drain bolt
G
Engine guard
G
Bolt (engine guard)
G
6. Fill:
Radiator
G
Engine
G
To specified level.
3 - 6
INSP
ADJ
New
10 Nm (1.0 m · kg, 7.2 ft · lb)
34 Nm (3.4 m · kg, 24 ft · lb)
Recommended coolant:
High quality ethylene glycol
anti-freeze containing anti-
corrosion for aluminum engine
Coolant 1 and water (soft water) 2
mixing ratio:
50 %/50 %
Coolant capacity:
1.2 L (1.06 Imp qt, 1.27 US qt)