Yamaha Yzf R1 2007 Manual

							STEERING HEAD
4-59
EAS23090
STEERING HEAD
Removing the lower bracket
Order Job/Parts to remove Q’ty Remarks
Front cowling Refer to GENERAL CHASSIS on page 4-1.
Side cowling Refer to GENERAL CHASSIS on page 4-1.
Front wheel Refer to FRONT WHEEL on page 4-8.
Front fork legs Refer to FRONT BRAKE on page 4-20.
Handlebar Refer to HANDLEBARS on page 4-45.
1 Main switch lead coupler 2 Disconnect.
2 Upper bracket bolt 2
3 Left handlebar assembly 1
4 Right handlebar assembly 1
5 Steering stem nut 1
6 Upper bracket 1
7 Front brake hose joint 1
8 Horn lead connector 1 Disconnect.
9Horn 1
10 Horn bracket 1
11 Lower bracket cover 1
12 Lock washer 1
13 Upper ring nut 1
14 Rubber washer 1
15 Lower ring nut 1
16 Lower bracket 1 
						

							STEERING HEAD
4-60
17 Bearing cover 1
18 Bearing inner race 2
19 Upper bearing 1
20 Lower bearing 1
21 Dust seal 1
22 Bearing outer race 2
For installation, reverse the removal proce-
dure.
Removing the lower bracket
Order Job/Parts to remove Q’ty Remarks 
						

							STEERING HEAD
4-61
EAS23110
REMOVING THE LOWER BRACKET
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
2. Remove:
 Upper ring nut “1”
(with the steering nut wrench “2”)
WARNING
EWA13730
Securely support the lower bracket so that 
there is no danger of it falling.
EAS23130
CHECKING THE STEERING HEAD
1. Wash:
 Bearings
 Bearing races
2. Check:
 Bearings “1”
 Bearing races “2”
Damage/pitting → Replace.
3. Replace: Bearings
 Bearing races
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Remove the bearing races “1” from the 
steering head pipe with a long rod “2” and 
hammer.
b. Remove the bearing race “3” from the lower 
bracket with a floor chisel “4” and hammer.
c. Install a new dust seal and new bearing 
races.
CAUTION:
ECA14270
If the bearing race is not installed properly, 
the steering head pipe could be damaged.
NOTE:
 Always replace the bearings and bearing 
races as a set.
 Whenever the steering head is disassem-
bled, replace the rubber seal.
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4. Check:
 Upper bracket
 Lower bracket
(along with the steering stem)
Bends/cracks/damage → Replace.
EAS23140
INSTALLING THE STEERING HEAD
1. Lubricate:
 Upper bearing
 Lower bearing
Steering nut wrench
90890-01403
Spanner wrench
YU-33975
Recommended cleaning solvent
Kerosene 
						

							STEERING HEAD
4-62
 Bearing races
2. Install:
 Lower ring nut “1”
 Rubber washer “2”
 Upper ring nut “3”
 Lock washer “4”
Refer to CHECKING AND ADJUSTING 
THE STEERING HEAD on page 3-27.
3. Install:
 Upper bracket
 Steering stem nut
NOTE:
Temporarily tighten the steering stem nut.
4. Install:
 Front fork legs
Refer to INSTALLING THE FRONT FORK 
LEGS on page 4-58.
NOTE:
Temporarily tighten the upper and lower 
bracket pinch bolts.
Recommended lubricant
Lithium-soap-based grease 
						

							REAR SHOCK ABSORBER ASSEMBLY
4-63
EAS23160
REAR SHOCK ABSORBER ASSEMBLY
Removing the rear shock absorber assembly
Order Job/Parts to remove Q’ty Remarks
Rider seat Refer to GENERAL CHASSIS on page 4-1.
Passenger seat Refer to GENERAL CHASSIS on page 4-1.
Fuel tank Refer to FUEL TANK on page 7-1.
1 Self-locking nut/bolt 1/1
2 Self-locking nut/bolt 1/1
3 Self-locking nut/bolt 1/1/1
4 Self-locking nut 1
5 Rear shock absorber assembly 1
6 Oil seal/bearing/collar 4/3/4
7 Collar/self-locking nut/bolt 1/1/1
8 Connecting arm 1
9 Oil seal/bearing/collar 2/1/1
10 Catalytic converter pipe stay 1
11 Relay arm 1
For installation, reverse the removal proce-
dure. 
						

							REAR SHOCK ABSORBER ASSEMBLY
4-64
EAS23180
HANDLING THE REAR SHOCK ABSORBER
WARNING
EWA13740
This rear shock absorber contains highly 
compressed nitrogen gas. Before handling 
the rear shock absorber, read and make 
sure you understand the following informa-
tion. The manufacturer cannot be held 
responsible for property damage or per-
sonal injury that may result from improper 
handling of the rear shock absorber.
 Do not tamper or attempt to open the rear 
shock absorber.
 Do not subject the rear shock absorber to 
an open flame or any other source of high 
heat. High heat can cause an explosion 
due to excessive gas pressure.
 Do not deform or damage the rear shock 
absorber in any way. Rear shock absorber 
damage will result in poor damping per-
formance.
EAS23190
DISPOSING OF A REAR SHOCK 
ABSORBER
1. Gas pressure must be released before dis-
posing of a rear shock absorber. To release 
the gas pressure, drill a 2–3-mm hole 
through the rear shock absorber at a point 
15–20 mm from its end as shown.
WARNING
EWA13760
Wear eye protection to prevent eye damage 
from released gas or metal chips.
EAS23230
REMOVING THE REAR SHOCK ABSORBER 
ASSEMBLY
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that 
the rear wheel is elevated.2. Remove:
 Rear shock absorber assembly lower bolt 
“1”
 Relay arm-to-swingarm bolt “2”
NOTE:
While removing the rear shock absorber 
assembly lower bolt, hold the swingarm so that 
it does not drop down.
3. Remove:
 Rear shock absorber upper bracket nut “1”
 Rear shock absorber assembly
NOTE:
Lower the swingarm, and the remove the rear 
shock absorber assembly from between the 
swingarm and frame.
EAS23240
CHECKING THE REAR SHOCK ABSORBER 
ASSEMBLY
1. Check:
 Rear shock absorber rod
Bends/damage → Replace the rear shock 
absorber assembly.
 Rear shock absorber
Gas leaks/oil leaks → Replace the rear 
shock absorber assembly.
Spring
Damage/wear → Replace the rear shock 
absorber assembly.
 Bushings
Damage/wear → Replace. 
						

							REAR SHOCK ABSORBER ASSEMBLY
4-65
 Dust seals
Damage/wear → Replace.
Bolts
Bends/damage/wear → Replace.
EAS23260
CHECKING THE CONNECTING ARM AND 
RELAY ARM
1. Check:
 Connecting arm “1”
 Relay arm “2”
Damage/wear → Replace.
2. Check:
 Bearings
Oil seals
Damage/pitting → Replace.
3. Check:
Collars
Damage/scratches → Replace.
EAS23270
INSTALLING THE RELAY ARM
1. Lubricate:
Collars
 Bearings
2. Install:
 Bearing “1”
 Oil seals “2”
(to the relay arm)
 Relay arm “3”
 Connecting arm “4”
EAS23310
INSTALLING THE REAR SHOCK 
ABSORBER ASSEMBLY
1. Lubricate:
Collars
 Bearings
2. Install:
 Rear shock absorber assembly
NOTE:
Install the connecting arm front bolt from the 
left.
3. Tighten:
 Rear shock absorber upper bracket nut
 Rear shock absorber assembly lower nut
 Relay-arm-to-swingarm nut
Recommended lubricant
Lithium soap base grease
Installed depth “a”
1.0 mm (0.04 in)
Installed depth “b”
4.0 mm (0.16 in)
A. Left side
B. Right side
Recommended lubricant
Molybdenum disulfide grease
Rear shock absorber upper 
bracket nut
92 Nm (9.2 m·kg, 67 ft·lb)
Rear shock absorber assembly 
lower nut
44 Nm (4.4 m·kg, 32 ft·lb)
Relay-arm-to-swingarm nut
44 Nm (4.4 m·kg, 32 ft·lb) 
						

							SWINGARM
4-66
EAS23330
SWINGARM
Removing the swingarm
Order Job/Parts to remove Q’ty Remarks
Rear wheel Refer to REAR WHEEL on page 4-14.
Rear shock absorber assemblyRefer to REAR SHOCK ABSORBER 
ASSEMBLY on page 4-63.
Drive sprocket Refer to ENGINE REMOVAL on page 5-1.
1 Right footrest bracket 1
2 Drive chain adjusting bolt/locknut 2/2
3 Drive chain guard 1
4 Rear fender 1
5 Brake hose holder 1
6 Pivot shaft nut/washer 1/1
7 Pivot shaft ring nut/washer 1/1
8 Pivot shaft  1
9 Swingarm 1
10 Drive chain 1
11 Dust cover 2
12 Washer 1
13 Drive chain guide 1
14 Spacer 1
15 Bearing 2 
						

							SWINGARM
4-67
For installation, reverse the removal proce-
dure.
Removing the swingarm
Order Job/Parts to remove Q’ty Remarks 
						

							SWINGARM
4-68
EAS23350
REMOVING THE SWINGARM
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that 
the rear wheel is elevated.
2. Remove:
 Relay arm-to-swingarm bolt “1”
 Connecting arm bolt “2”
 Rear shock absorber assembly lower bolt 
“3”
NOTE:
When removing the rear shock absorber 
assembly lower bolt, hold the swingarm so that 
it does not drop down.
3. Measure:
 Swingarm side play
 Swingarm vertical movement
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a. Measure the tightening torque of the pivot 
shaft nut, pivot shaft ring nut, and pivot 
shaft.
b. Measure the swingarm side play “A” by 
moving the swingarm from side to side.
c. If the swingarm side play is out of specifica-
tion, check the spacers, bearings, washers, 
and dust covers.d. Check the swingarm vertical movement “B” 
by moving the swingarm up and down.
If swingarm vertical movement is not 
smooth or if there is binding, check the 
spacers, bearings, washers, and dust cov-
ers.
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4. Remove:
 Drive chain
Refer to REMOVING THE DRIVE CHAIN 
on page 4-72.
5. Remove:
 Pivot shaft nut
 Swingarm pivot shaft ring nut “1”
NOTE:
Loosen the swingarm pivot shaft ring nut with 
the ring nut wrench “2”.
6. Remove:
 Swingarm pivot shaft “1”
Pivot shaft nut
105 Nm (10.5 m·kg, 76 ft·lb)
Pivot shaft ring nut
65 Nm (6.5 m·kg, 47 ft·lb)
Pivot shaft
7 Nm (0.7 m·kg, 5.1 ft·lb)
Swingarm side play (at the end
of the swingarm)
1.0 mm (0.04 in)
Ring nut wrench
90890-01507
YM-01507