2018 YAMAHA YZF-R1 radiator

Description
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EAU10421
Right view
43
567
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1
8,9,10
1. Battery (page 7-31)
2. Front brake fluid reservoir (page 7-24)
3. Document storage space (page 4-40)
4. Radiator cap (page 7-15)
5. Engine oil filler cap (page 7-12)
6. Brake pedal (page 4-32)
7. Rear brake fluid reservoir (page 7-24)
8. Fast compression damping adjuster (YZF-R1) (page 4-44) 9. Slow compression damping
adjuster (YZF-R1) (page 4-44)
10.Rebound damping adjuster (YZF-R1) (page 4-44)
BX4-9-E1_1.book 2 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment
7-15
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67
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12 10. Check the oil filler cap O-ring for
damage, and replace it if neces-
sary.
11. Install and tighten the oil filler cap.
12. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
TIPAfter the engine is started, the oil pres-
sure and coolant temperature warning
light should go off if the oil level is suffi-cient.
NOTICE
ECA22490
If the oil pressure and coolant tem-
perature warning light flickers or re-
mains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer checkthe vehicle.
13. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
14. Install the cowling and panel.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilledwater at a 1:1 ratio.
EAU20097
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold. 1. Park the vehicle on a level surface.
2. With the vehicle in an upright posi- tion, look at the coolant level in the
1. Engine oil filler cap
2. O-ring
21
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 2.25 L (2.38 US qt, 1.98 Imp.qt)
BX4-9-E1_1.book 15 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment7-16
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reservoir.
3. If the coolant is at or below the minimum level mark, remove the
coolant reservoir cap. WARNING!
Remove only the coolant reser-
voir cap. Never attempt to re-
move the radiator cap when the
engine is hot.
[EWA15162]
4. Add coolant to the maximum level mark. NOTICE: 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 cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will be reduced.
[ECA10473]
5. Install the coolant reservoir cap.
EAU33032
Changing the coolant
The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove
the radiator cap when the engine is
hot.
[EWA10382]
1. Maximum level mark
2. Minimum level mark1
2
1. Coolant reservoir cap
1
BX4-9-E1_1.book 16 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment
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EAU66592
Replacing the fusesThe main fuse and ABS motor fuse are
located under the rider seat.
To access the ABS motor fuse1. Remove the passenger seat and rider seat. (See page 4-38.)
2. Remove the panel by removing the screws. 3. Remove the starter relay cover by
pulling it upward.
The fuse boxes, which contain the fus-
es for the individual circuits, are located
under panel A. (See page 7-8.)1. Main fuse
2. ABS motor fuse
3. Starter relay cover
4. ABS motor spare fuse1 2
4
3
1. Screw
2. Panel
1. Starter relay cover1
1
2
1
1. Hazard fuse
2. Fuel injection system fuse
3. Electronic throttle valve fuse
4. Backup fuse
5. Sub radiator fan motor fuse
6. Radiator fan motor fuse
7. Spare fuse
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2
3
4
5
6 7
BX4-9-E1_1.book 33 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment7-34
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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. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15132]
3. Turn the key to “ON” and turn on the electrical circuit in question to check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
1. Ignition fuse
2. Signaling system fuse
3. ABS ECU fuse
4. ABS solenoid fuse
5. Headlight fuse
6. Terminal fuse 1
7. Spare fuse
8. SCU fuse (YZF-R1M)
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Specified fuses:
Main fuse:50.0 A
Terminal fuse 1:
2.0 A
Headlight fuse: 7.5 A
Signaling system fuse: 7.5 A
Ignition fuse:
15.0 A
Radiator fan motor fuse: 15.0 A
Sub radiator fan motor fuse: 10.0 A
ABS motor fuse:
30.0 A
Hazard fuse: 7.5 A
ABS ECU fuse: 7.5 A
ABS solenoid fuse:
15.0 A
SCU fuse: 7.5 A (YZF-R1M)
Fuel injection system fuse: 15.0 A
Backup fuse: 7.5 A
Electronic throttle valve fuse: 7.5 A
BX4-9-E1_1.book 34 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment7-38
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Engine overheating
WARNING
EWAT1041

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.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily
used instead, provided that it is changed to the recommended coolantas 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 TIP.)
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.
BX4-9-E1_1.book 38 ページ ２０１８年４月２７日　金曜日　午後４時３分

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Specifications
EAU70621
Dimensions:Overall length: 2055 mm (80.9 in)
Overall width: 690 mm (27.2 in)
Overall height: 1150 mm (45.3 in)
Seat height:
855 mm (33.7 in) (YZF-R1)
860 mm (33.9 in) (YZF-R1M)
Wheelbase:
1405 mm (55.3 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius: 3.3 m (10.83 ft)Weight:Curb weight:200 kg (441 lb) (YZF-R1)
201 kg (443 lb) (YZF-R1M)Engine:Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train: DOHC
Cylinder arrangement: Inline
Number of cylinders:
4-cylinder
Displacement: 998 cm
3
Bore  stroke:
79.0  50.9 mm (3.11  2.00 in)
Compression ratio:
13.0 : 1
Starting system: Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:YAMALUBE
Type: Full synthetic
SAE viscosity grades:
10W-40, 15W-50
Recommended engine oil grade: API service SG type or higher, JASO stan-
dard MA
Engine oil quantity: Oil change:
3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter removal: 4.10 L (4.33 US qt, 3.61 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
2.25 L (2.38 US qt, 1.98 Imp.qt)Air filter:Air filter element:Oil-coated paper element
Fuel:Recommended fuel:Premium unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity:
17 L (4.5 US gal, 3.7 Imp.gal)
Fuel reserve amount: 3.0 L (0.79 US gal, 0.66 Imp.gal)Fuel injection:Throttle body:
ID mark: 2CR4 10Spark plug(s):Manufacturer/model:NGK/LMAR9E-J
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, multiple-discDrivetrain:Primary reduction ratio:
1.634 (67/41)
Final drive: Chain
Secondary reduction ratio: 2.563 (41/16)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.600 (39/15)
2nd: 2.176 (37/17)
BX4-9-E1_1.book 1 ページ ２０１８年４月２７日　金曜日　午後４時３分

Specifications
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Brake/tail light: LED
Front turn signal light:
LED
Rear turn signal light: LED
Auxiliary light: LED
License plate light:
LED
Meter lighting: LED
Neutral indicator light: LED
High beam indicator light:
LED
Turn signal indicator light: LED
Stability control indicator light: LED
Oil pressure and coolant temperature warning
light:
LED
Fuel level warning light:
LED
Engine trouble warning light: LED
Steering damper and suspension warning
light: LED
ABS warning light: LED
Immobilizer system indicator light:
LED Shift timing indicator light:
LED
Fuse(s):Main fuse:50.0 A
Terminal fuse 1: 2.0 A
Headlight fuse:
7.5 A
Signaling system fuse: 7.5 A
Ignition fuse: 15.0 A
Radiator fan motor fuse:
15.0 A
Sub radiator fan motor fuse: 10.0 A
Hazard fuse: 7.5 A
ABS ECU fuse:
7.5 A
Fuel injection system fuse: 15.0 A
SCU fuse: 7.5 A (YZF-R1M)
ABS motor fuse:
30.0 A
ABS solenoid fuse: 15.0 A
Backup fuse: 7.5 A
Electronic throttle valve fuse:
7.5 A
BX4-9-E1_1.book 3 ページ ２０１８年４月２７日　金曜日　午後４時３分