Changing The Coolant - Yamaha YZF-R1(B) 2012 Service Manual

EAS21130

CHANGING THE COOLANT

1. Remove:
• Lower cowlings
• Side cowlings
Refer to "GENERAL CHASSIS" on page
4-1.
2. Disconnect:
• Coolant reservoir cap "1"
3. Drain:
• Coolant
(from the coolant reservoir)
4. Remove:
• Radiator cap "2"
EWA13030
WARNING
A hot radiator is under pressure. Therefore,
do not remove the radiator cap when the
engine is hot. Scalding hot fluid and steam
may be blown out, which could cause seri-
ous injury. When the engine has cooled,
open the radiator cap as follows:
Place a thick rag or a towel over the radia-
tor cap and slowly turn the radiator cap
counterclockwise toward the detent to
allow any residual pressure to escape.
When the hissing sound has stopped,
press down on the radiator cap and turn it
counterclockwise to remove.
PERIODIC MAINTENANCE
The following procedure applies to all of the
coolant drain bolts and copper washers.
5. Remove:
• Coolant drain bolt (engine) "1"
(along with the copper washer)
6. Drain:
• Coolant
(from the engine and radiator)
7. Install:
• Coolant drain bolt (with the copper
washer
New
Coolant drain bolt
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
8. Install:
• Coolant reservoir
9. Fill:
• Cooling system
(with the specified amount of the recom-
mended coolant)
Recommended antifreeze
High-quality ethylene glycol anti-
freeze
inhibitors for aluminum engines
Mixing ratio
1:1 (antifreeze:water)
Radiator capacity (including all
routes)
2.73 L (2.89 US qt, 2.40 Imp.qt)
Coolant reservoir capacity (up
to the maximum level mark)
0.25 L (0.26 US qt, 0.22 Imp.qt)
Handling notes for coolant
Coolant is potentially harmful and should
be handled with special care.
EWA13040
WARNING
• If coolant splashes in your eyes, thor-
oughly wash them with water and consult
a doctor.
3-32
)
containing corrosion