radiator YAMAHA YZF-R6 2003 Owners Manual

DESCRIPTION
2-2
2
Right view13. Luggage strap holder (page 3-27)
14. Helmet holder (page 3-21)
15. Fuse box 1 (page 6-40)
16. Main fuse (page 6-40)
17. Battery (page 6-38)
18. Throttle stop screw (page 6-23)
19. Air filter element (page 6-19)20. Front brake fluid reservoir (page 6-31)
21. Radiator cap (page 6-16)
22. Coolant drain bolt (page 6-16)
23. Engine oil filler cap (page 6-10)
24. Brake pedal (page 3-16)
25. Engine oil dipstick (page 6-10)
26. Rear brake fluid reservoir (page 6-31)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
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.
_
EW000067
WARNING
_ Never attempt to remove the radia-
tor cap when the engine is hot. _4. Install the reservoir cap, and then
install the coolant reservoir cover
by installing the bolts.NOTE:_

The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.


If the engine overheats, see page
6-53 for further instructions.
_
EAU04970
To change the coolant
1. Place the motorcycle on a level
surface and let the engine cool if
necessary.
2. Remove panel A and cowling A.
(See pages 6-5–6-8 for panel and
cowling removal and installation
procedures.)
3. Place a container under the en-
gine to collect the used coolant.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 4. Loosen the clamp screw, and then
disconnect the air intake duct.5. Remove the radiator cap.
EW000067
WARNING
_ Never attempt to remove the radia-
tor cap when the engine is hot. _
6. Remove the coolant drain bolt to
drain the cooling system.
7. Loosen the clamp screw, and then
disconnect the radiator hose to
drain the radiator.
1. Clamp screw
2. Air intake duct
1. Radiator cap
1. Coolant drain bolt
2. Clamp screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
68. Remove the coolant reservoir cov-
er by removing the bolts.
9. Remove cowling B. (See page 6-5
for cowling removal and installa-
tion procedures.)10. Pull the fuel hoses upward to re-
move them from the guide.
11. Remove the coolant reservoir by
removing the bolts.
12. Remove the coolant reservoir cap,
and then turn the coolant reservoir
upside down to empty it.
13. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
14. Install the coolant reservoir by in-
stalling the bolts.
15. Connect the radiator hose, and
then tighten the clamp screw.
1. Coolant reservoir cover
2. Bolt (× 2)
1. Fuel hose (× 2)
1. Coolant reservoir cap
2. Coolant reservoir
3. Bolt (× 2)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6 16. 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. _17. Pour the recommended coolant
into the reservoir to the maximum
level mark, and then install the
coolant reservoir cap.
18. Install the coolant reservoir cover
by installing the bolts.
19. Insert the fuel hoses into the guide
and place them in their original po-
sition.20. Install cowling B.
21. Pour the recommended coolant
into the radiator until it is full.
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:
2.15 L
Coolant reservoir capacity
(up to the maximum level mark):
0.25 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
622. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
23. 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.
24. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
25. Connect the air intake duct, and
then tighten the clamp screw.
26. Install the panel and the cowling.
EAU04946*
Checking the air filter element The air filter element should be
checked at the intervals specified in the
periodic maintenance and lubrication
chart. Check the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
1. Remove the rider seat. (See page
3-19 for rider seat removal and in-
stallation procedures.)
2. Remove the fuel tank bolts and
slightly lift the fuel tank.
1. Bolt (× 2)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU04981
Replacing the fuses The main fuse and fuse box 1 are locat-
ed under the rider seat. (See page 3-19
for rider seat removal and installation
procedures.)Fuse box 2 is located under panel B.
(See page 6-7 for panel removal and
installation procedures.)If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.1. Spare main fuse
2. Main fuse
3. Fuse box 1
4. Electronic fuel injection fuse
5. Turn signal light, taillight, license plate light,
auxiliary light and hazard fuse
6. Spare fuse
1. Fuse box 2
2. Headlight fuse
3. Radiator fan fuse
4. Ignition fuse
5. Signaling system fuse
6. Odometer, clock and immobilizer system fuse
(backup fuse)
7. Spare fuse (× 2)
Specified fuses:
Main fuse: 40 A
Fuse box 1:
Electronic fuel injection
fuse: 15 A
Turn signal light,
taillight, license plate
light, auxiliary light and
hazard fuse: 10 A
Fuse box 2:
Headlight fuse: 20 A
Signaling system fuse: 15 A
Radiator fan fuse: 15 A
Ignition fuse: 15 A
Odometer, clock and
immobilizer system fuse
(backup fuse): 10 A
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-53
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.
@aNOTE:@ 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.
U5SLE0.book Page 53 Wednesday, September 11, 2002 11:46 AM

SPECIFICATIONS
8-4
8
Battery
Model GT9B-4
Voltage, capacity 12 V, 8 Ah
Headlight typeHalogen bulb
Bulb voltage, wattage × quantity
Headlight 12 V, 55 W × 2
Tail/brake light LED
Turn signal light 12 V, 10 W × 4
Auxiliary light 12 V, 5 W × 2
License plate light 12 V, 5 W × 1
Meter lighting LED
Neutral indicator light LED
High beam indicator light LED
Turn signal indicator light LED
Fuel level warning light LED
Oil level warning light LED
Coolant temperature warning
light LED
Engine trouble warning light LED
Shift timing indicator light LED
Immobilizer system
indicator light LEDFuses
Main fuse 40 A
Headlight fuse 20 A
Signaling system fuse 15 A
Radiator fan fuse 15 A
Ignition fuse 15 A
Electronic fuel injection fuse 15 A
Turn signal light, taillight,
license plate light, auxiliary
light and hazard fuse 10 A
Odometer, clock and
immobilizer system fuse
(backup fuse) 10 A
U5SLE0.book Page 4 Wednesday, September 11, 2002 11:46 AM