Page 70 of 115

PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
6
EAU00658
TiresTo maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EW000082
WARNING
@ l
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
l
The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
@
CE-??E
CE-??E
EWA00012
WARNING
@ Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your motorcycle, you should
keep the following precautions in
mind. l
NEVER OVERLOAD THE
MOTORCYCLE! Operation of an
overloaded motorcycle may re-
sult in tire damage, loss of con-
trol, or severe injury. Make surethat the total weight of rider,
passenger, cargo, and accesso-
ries does not exceed the speci-
fied maximum load for the
vehicle.
l
Do not carry along loosely
packed items, which can shift
during a ride.
l
Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.
l
Adjust the suspension and tire
air pressure with regard to the
load.
l
Check the tire condition and air
pressure before each ride.
@
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg*250 kPa
2.50 kg/cm
2
2.50 bar250 kPa
2.50 kg/cm
2
2.50 bar
90 kg–
maximum*250 kPa
2.50 kg/cm
2
2.50 bar290 kPa
2.90 kg/cm
2
2.90 bar
High-speed riding250 kPa
2.50 kg/cm
2
2.50 bar250 kPa
2.50 kg/cm
2
2.50 bar
Maximum load* 201 kg
* Total weight of rider, passenger, cargo and accesso-
ries
E_5jj_Periodic.fm Page 19 Wednesday, February 2, 2000 5:18 PM
Page 78 of 115

PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
EAU00744
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:@ When checking and adjusting the drive
chain slack, the motorcycle should be
positioned straight up and there should
be no weight on it. @
2. Shift the transmission into the neu-
tral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain
slack as shown.
4. If the drive chain slack is incorrect,
adjust it as follows.
EAU01251
To adjust the drive chain slack
1. Loosen the axle nut and the chain
puller locknut on each side of the
swingarm.
2. To tighten the drive chain, turn the
adjusting bolt on each side of the
swingarm in direction
a. To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction
b, and then
push the rear wheel forward.
a. Drive chain slack
Drive chain slack:
40–50 mm
1. Axle nut
2. Adjusting bolt
3. Locknut
4. Alignment marks
E_5jj_Periodic.fm Page 27 Wednesday, February 2, 2000 5:18 PM
Page 104 of 115

8-1
8
EAU01038
8-SPECIFICATIONSSpecificationsCS-01E
Model YZF-R1
Dimensions
Overall length 2,035 mm
Overall width 695 mm
Overall height 1,105 mm
Seat height 815 mm
Wheelbase 1,395 mm
Ground clearance 140 mm
Minimum turning radius 3,400 mm
Basic weight (with oil and full
fuel tank)
194 kg
Engine
Engine type Liquid-cooled 4-stroke, DOHC
Cylinder arrangement Forward-inclined parallel
4-cylinder
Displacement 998 cm
3
Bore ´ stroke 74 ´ 58 mm
Compression ratio 11.8:1
Starting system Electric starter
Lubrication system Wet sumpEngine oil
Ty p e
Recommended engine oil
classification API Service SE, SF, SG or
higher
Quantity
Without oil filter cartridge
replacement 2.7 L
With oil filter car tridge
replacement 2.9 L
Total amount (dry engine) 3.6 L
-20 -10 0
10 20 30
40
50 °C
SAE 10W–30
SAE 15W–40SAE 20W–40SAE 20W–50
SAE 10W–40
CAUTION:Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled
“Energy Conserving”) contain anti-friction additives which
will cause clutch and/or starter clutch slippage, resulting in
reduced component life and poor engine performance.
E_5jj_Spec.fm Page 1 Wednesday, February 2, 2000 5:19 PM
Page 106 of 115

SPECIFICATIONS
8-3
8
Maximum load* 201 kg
Tire air pressure
(measured on cold tires)
Up to 90 kg*
Front 250 kPa (2.50 kg/cm
2, 2.50 bar)
Rear 250 kPa (2.50 kg/cm2, 2.50 bar)
90 kg–maximum*
Front 250 kPa (2.50 kg/cm2, 2.50 bar)
Rear 290 kPa (2.90 kg/cm2, 2.90 bar)
High-speed riding
Front 250 kPa (2.50 kg/cm2, 2.50 bar)
Rear 250 kPa (2.50 kg/cm2, 2.50 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Ty p e C a s t
Size 17 ´ MT 3.50
Rear
Ty p e C a s t
Size 17 ´ MT 6.00
Brakes
Front
Type Dual disc brake
Operation Right hand
Fluid DOT 4Rear
Type Single disc brake
Operation Right foot
Fluid DOT 4
Suspension
Fr o n t
Ty p e Te l e s c o p i c f o r k
Rear
Type Swingarm (link suspension)
Spring/shock absorber
Front Coil spring / oil damper
Rear Coil spring / gas-oil damper
Wheel travel
Front 135 mm
Rear 130 mm
Electrical system
Ignition system T.C.I. (digital)
Charging system
Type A.C. magneto
Standard output 14 V, 365 W@ 5,000 r/min
Battery
Model GT12B-4
Voltage, capacity 12 V, 10 Ah
Headlight typeQuartz bulb (halogen)
E_5jj_Spec.fm Page 3 Wednesday, February 2, 2000 5:19 PM
Page 108 of 115
SPECIFICATIONS
8-5
8
EAU01064
Conversion tableCS-02E All specification data in this manual are listed in SI and
METRIC UNITS.
Use this table to convert METRIC unit data to IMPERIAL
unit data.
ExampleMETRIC MULTIPLIER IMPERIAL
** mm´ 0.03937 = ** in
2 mm´ 0.03937 = 0.08 in
Conversion tableMETRIC TO IMPERIAL
Metric unit Multiplier Imperial unit
Torquem·kg
m·kg
cm·kg
cm·kg7.233
86.794
0.0723
0.8679ft·lb
in·lb
ft·lb
in·lb
Weightkg
g2.205
0.03527lb
oz
Speed km/h 0.6214 mi/h
Distancekm
m
m
cm
mm0.6214
3.281
1.094
0.3937
0.03937mi
ft
yd
in
in
Volume,
Capacitycc (cm3)
cc (cm3)
L (liter)
L (liter)0.03527
0.06102
0.8799
0.2199oz (IMP liq.)
cu·in
qt (IMP liq.)
gal (IMP liq.)
Miscellaneouskg/mm
kg/cm2
Centigrade (°
C)55.997
14.2234
9/5 + 32 lb/in
psi (lb/in
2)
Fahrenheit (°
F)
E_5jj_Spec.fm Page 5 Wednesday, February 2, 2000 5:19 PM