2005 YAMAHA YZF-R1 Front

PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
EAU22580
Checking the brake fluid level Front brake
Rear brake
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.
Observe these precautions:


When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.


Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.


Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.


Be careful that water does not en-
ter the brake fluid reservoir when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.


Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.


As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
1. Minimum level mark
Recommended brake fluid:
DOT 4
U5VYE1E0.book Page 22 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
EAUM1650
Lubricating the swingarm
pivots The swingarm pivots must be lubricat-
ed at the intervals specified in the peri-
odic maintenance and lubrication chart.
EAU23271
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
CAUTION:
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
Recommended lubricant:
Lithium-soap-based grease
U5VYE1E0.book Page 27 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
EAU23280
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23290
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
U5VYE1E0.book Page 28 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6 3. Remove the socket (together with
the bulb) by pulling it out.
4. Remove the defective bulb by pull-
ing it out.
5. Insert a new bulb into the socket.
6. Install the socket (together with the
bulb) by pushing it in.7. Install the auxiliary light bulb cover
by installing the quick fastener.
NOTE:To install the quick fastener, push the
center pin out so that it will protrude
from the fastener head, insert the fas-
tener into the auxiliary light bulb cover,
and then push the protruding pin in untilit is flush with the fastener head.
8. Install the panel.
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
1. Auxiliary light bulb socket
1. Auxiliary light bulb
U5VYE1E0.book Page 37 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAU33921
To remove the front wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the wheel axle pinch bolts,
the axle bolt, and then the brake
caliper bolts.
2. Lift the front wheel off the ground
according to the procedure on
page 6-37.3. Remove the brake hose holder on
each side by removing the bolt and
nut.
4. Remove the brake caliper on each
side by removing the bolts.
5. Remove the axle bolt, push the
wheel axle out from the left side,
and then remove the wheel.
1. Front wheel axle pinch bolt
1. Brake hose holder
2. Bolt and nut
3. Brake caliper bolt
4. Brake caliper
5. Axle bolt
U5VYE1E0.book Page 38 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
6
CAUTION:
ECA11050
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will beforced shut.
EAU33931
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle.
3. Lower the front wheel so that it is
on the ground.
4. Install the brake calipers by install-
ing the bolts, and then tightening
them to the specified torque.
NOTE:Make sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brakediscs.
5. Install the brake hose holders by
installing the bolts and nuts.
6. Secure the wheel axle by installing
the axle bolt, and then tightening
the axle bolt to the specified
torque.NOTE:While tightening the axle bolt, hold the
wheel axle with a 19-mm hexagonwrench to keep it from turning.
7. Tighten wheel axle pinch bolt B,
and then tighten pinch bolt A to the
specified torque.8. Retighten pinch bolt B to the spec-
ified torque.
9. Tap the outer side of the right fork
leg with a rubber mallet to align it
with the end of the wheel axle.
10. Tighten wheel axle pinch bolt D,
and then tighten pinch bolt C to the
specified torque.
11. Retighten pinch bolt D to the spec-
ified torque.
1. Wheel axle
Tightening torque:
Brake caliper bolt:
35 Nm (3.5 m·kgf, 25 ft·lbf)
Tightening torque:
Axle bolt:
91 Nm (9.1 m·kgf, 66 ft·lbf)
Tightening torque:
Wheel axle pinch bolt:
21 Nm (2.1 m·kgf, 15 ft·lbf)
Tightening torque:
Wheel axle pinch bolt:
21 Nm (2.1 m·kgf, 15 ft·lbf)
U5VYE1E0.book Page 39 Tuesday, September 7, 2004 9:09 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
612. While applying the front brake,
push down hard on the handlebar
several times to check for proper
fork operation.
EAU25080
Rear wheel
EAU25311
To remove the rear wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the axle nut.2. Lift the rear wheel off the ground
according to the procedure on
page 6-37.
3. Remove the axle nut.
4. Loosen the locknut on each side of
the swingarm.
5. Turn the drive chain slack adjust-
ing bolts fully in direction (a) and
push the wheel forward.
6. Remove the drive chain from the
rear sprocket.
NOTE:

If the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.


The drive chain cannot be disas-sembled.
7. While supporting the brake caliper
bracket, pull the wheel axle out,
and then remove the wheel.
1. Front wheel axle pinch bolt A
2. Front wheel axle pinch bolt B
3. Front wheel axle pinch bolt C
4. Front wheel axle pinch bolt D
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Brake caliper
5. Brake caliper bracket
U5VYE1E0.book Page 40 Tuesday, September 7, 2004 9:09 AM

SPECIFICATIONS
8-2
8
Gear ratio:
1st:
38/15 (2.533)
2nd:
33/16 (2.063)
3rd:
37/21 (1.762)
4th:
35/23 (1.522)
5th:
30/22 (1.364)
6th:
33/26 (1.269)Chassis:Frame type:
Diamond
Caster angle:
24.00 °
Trail:
97.0 mm (3.82 in)Front tire:Type:
Tubeless
Size:
120/70 ZR17M/C (58W)
Manufacturer/model:
MICHELIN/Pilot POWER C
Manufacturer/model:
DUNLOP/D218FLRear tire:Type:
Tubeless
Size:
190/50 ZR17M/C (73W)Manufacturer/model:
MICHELIN/Pilot POWER G
Manufacturer/model:
DUNLOP/D218L
Loading:Maximum load:
202 kg (445 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
290 kPa (42 psi) (2.90 kgf/cm²)
Loading condition:
90–202 kg (198–445 lb)
Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
290 kPa (42 psi) (2.90 kgf/cm²)
High-speed riding:
Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
290 kPa (42 psi) (2.90 kgf/cm²)Front wheel:Wheel type:
Cast wheel
Rim size:
17M/C x MT3.50
Rear wheel:Wheel type:
Cast wheel
Rim size:
17M/C x MT6.00Front brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
130.0 mm (5.12 in)
U5VYE1E0.book Page 2 Tuesday, September 7, 2004 9:09 AM