2003 YAMAHA YZF-R1 coolant reservoir

DESCRIPTION
2-2
2
Right view13. Luggage strap holders (page 3-23)
14. Helmet holders (page 3-18)
15. Main fuse (page 6-36)
16. Electronic fuel injection fuse (page 6-36)
17. Battery (page 6-34)
18. Rear brake fluid reservoir (page 6-28)19. Air filter element (page 6-18)
20. Radiator cap (page 6-15)
21. Coolant reservoir (page 6-13)
22. Engine oil level check window (page 6-9)
23. Engine oil filler cap (page 6-9)
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4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
CO-01E
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-15
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-9
CoolantCheck coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.6-13–6-14
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-26–6-28
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-25–6-28
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-24–6-25
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-20, 6-31
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
EAU04897
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the coolant level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the motorcycle is
positioned straight up when
checking the coolant level. A slight
tilt to the side can result in a false
reading.
_
2. Check the coolant level in the
coolant reservoir.NOTE:_ The coolant should be between the
minimum and maximum level marks. _
3. If the coolant is at or below the min-
imum level mark, remove panel A
(See page 6-7 for panel removal
and installation procedures.), re-
move the reservoir cap, add cool-
ant to the maximum level mark,
and then install the reservoir cap
and the panel.
1. Maximum level mark
2. Minimum level mark
1. Coolant reservoir cap
Coolant reservoir capacity
(up to the maximum level mark):
0.24 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
64. Remove the clutch cable holder
from the coolant reservoir as
shown.
5. Remove the coolant reservoir by
removing the bolts.
6. Remove the coolant reservoir cap,
and then turn the coolant reservoir
upside down to empty it.
7. Install the coolant reservoir by in-
stalling the bolts, and then install
the clutch cable holder.8. Remove the radiator cap.
EW000067
WARNING
_ Never attempt to remove the radia-
tor cap when the engine is hot. _
9. Remove the coolant drain bolt to
drain the cooling system.
10. Loosen the radiator hose clamp
screw located at the left side of the
engine, and then pull off the hose
to drain the radiator.
1. Bolt (× 2)
2. Radiator cap
3. Coolant reservoir cap
4. Coolant reservoir
5. Clutch cable holder
1. Coolant drain bolt
2. Clamp screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 11. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
12. Install the coolant drain bolt, and
then tighten it to the specified
torque.
NOTE:_ Check the washer for damage and re-
place it if necessary. _13. Connect the radiator hose, and
then tighten the clamp screw.14. Pour the specified amount of rec-
ommended coolant into the radia-
tor and reservoir.
EC000080
CAUTION:_

If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.


If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.


If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
_
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
2.45 L
Coolant reservoir capacity
(up to the maximum level mark):
0.24 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
615. Install the radiator cap and the
coolant reservoir cap, and then
start the engine and let it idle for
several minutes. During this peri-
od, rev the engine two or three
times between 3,000–5,000 r/min,
and then turn it off.
16. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.
17. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
18. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
19. Install the cowlings and the panel.
EAU04572*
Replacing the air filter
element The air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas.
1. Remove the rider seat. (See page
3-17 for rider seat removal and in-
stallation procedures.)
2. Remove the bolt.3. Lift the front of the fuel tank, and
then tilt it back and away from the
air filter case. (Do not disconnect
the fuel hoses!)
EW000071
WARNING
_

Make sure that the fuel tank is
well supported.


Do not tilt or pull the fuel tank
too much, otherwise the fuel
hoses may come loose, which
could cause fuel leakage.
_4. Disconnect the fuel tank breather
hose and the fuel tank overflow
hose.
1. Bolt
1. Fuel tank breather hose
2. Fuel tank overflow hose
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-47
6Engine overheating
EW000070
WARNING
_

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.


After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
_CT-2AENOTE:_ If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible. _
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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