Yamaha Yzf R1 2007 Manual

							GENERATOR
5-31
12 Stator coil assembly lead holder 1
13 Idler gear 1
14 Idler gear shaft 1
15 Washer 1
16 Bearing 1
For installation, reverse the removal proce-
dure.
Removing the generator
Order Job/Parts to remove Q’ty Remarks 
						

							GENERATOR
5-32
EAS24490
REMOVING THE GENERATOR
1. Remove:
Plug
 Generator rotor cover “1”
NOTE:
 While pushing generator rotor, remove the 
generator rotor cover.
 Loosen each bolt 1/4 of a turn a time, in 
stages and in a crisscross pattern.
 After all of the bolts are fully loosened, 
remove them.
2. Remove:
 Generator rotor and starter clutch assem-
bly “1”
3. Remove:
 Idle gear shaft bolt “1”
 Idle shaft
 Idle gear “2”
EAS24500
INSTALLING THE GENERATOR
1. Install:
 Idle gear shaft
 Idle gear “1”
Washer
 Idle gear shaft bolt “2”
2. Install
 Generator rotor and starter clutch assem-
bly “1”
3. Install:
 Generator rotor cover gasket 
 Generator rotor cover “1”
Idle gear shaft bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
LOCTITE®
Generator rotor cover bolt (M6)
12 Nm (1.2 m·kg, 8.7 ft·lb)
Generator rotor cover bolt (M8)
22 Nm (2.2 m·kg, 16 ft·lb)
New 
						

							GENERATOR
5-33
NOTE:
 First tighten the M8 bolts and then tighten the 
M6 bolts.
 Tighten the generator rotor cover bolts in 
stages and in a crisscross pattern. 
						

							STARTER CLUTCH
5-34
EAS24550
STARTER CLUTCH
Removing the starter clutch
Order Job/Parts to remove Q’ty Remarks
1 Generator rotor 1
2 Damper 3
3 Driven gear 1
4 Washer 1
5 Starter clutch drive gear 1
6 Collar 1
7 Washer 1
8Spacer 1
9O-ring 1
For assembly, reverse the removal proce-
dure. 
						

							STARTER CLUTCH
5-35
EAS24560
REMOVING THE STARTER CLUTCH
1. Remove:
 Spacer “1”
 O-ring “2”
 Washer “3”
2. Remove:
 Starter clutch drive gear “1”
 Collar “2”
 Washer “3”
3. Remove:
 Driven gear “1”
 Dampers “2”
 Generator rotor “3”
EAS4C81007
CHECKING THE DAMPER
1. Check:
 Dampers “1”
Damage/wear → Replace.
EAS24570
CHECKING THE STARTER CLUTCH
1. Check:
 Starter clutch rollers “1”
Damage/wear → Replace.
2. Check:
 Starter clutch idle gear “1”
 Starter clutch drive gear “2”
Burrs/chips/roughness/wear → Replace 
the defective part(s).
3. Check:
 Starter clutch gear’s contacting surfaces
Damage/pitting/wear → Replace the starter 
clutch gear.
4. Check:
 Starter clutch operation
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Install the starter clutch drive gear “1” onto 
the starter clutch “2” and hold the starter 
clutch. 
						

							STARTER CLUTCH
5-36
b. When turning the starter clutch drive gear 
clockwise “A”, the starter clutch and the 
starter clutch drive gear should engage, 
otherwise the starter clutch is faulty and 
must be replaced.
c. When turning the starter clutch drive gear 
counterclockwise “B”, it should turn freely, 
otherwise the starter clutch is faulty and 
must be replaced.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS24600
INSTALLING THE STARTER CLUTCH
1. Install:
 Generator rotor “1”
 Damper “2”
 Driven gear “3”
NOTE:
 The hole side of the damper is installed to 
the generator side.
 Lubricate the engine oil “4”.
2. Install
 Starter clutch drive gear “1”
 Collar “2”
 Washer “3”
Refer to CHECKING THE STARTER 
CLUTCH on page 5-35.3. Install:
 Washer “1”
 O-ring “2” 
 Spacer “3”
NOTE:
Lubricate the engine oil to O-ring.
New 
						

							CRANKSHAFT POSITION SENSOR
5-37
EAS24520
CRANKSHAFT POSITION SENSOR
Removing the crankshaft position sensor
Order Job/Parts to remove Q’ty Remarks
Rider seat  Refer to GENERAL CHASSIS on page 4-1.
Side cowlings  Refer to GENERAL CHASSIS on page 4-1.
Lower cowlings Refer to GENERAL CHASSIS on page 4-1.
Fuel tank Refer to FUEL TANK on page 7-1.
Engine oilDrain.
Refer to CHANGING THE ENGINE OIL on 
page 3-11.
1 Crankshaft position sensor lead coupler 1
2 Crankshaft position sensor 1
3O-ring 1
4 Pickup rotor cover 1
5Gasket 1
6Cover 1
For installation, reverse the removal proce-
dure. 
						

							CRANKSHAFT POSITION SENSOR
5-38
EAS24530
REMOVING THE CRANKSHAFT POSITION 
SENSOR
1. Disconnect:
 Crankshaft position sensor lead coupler
2. Remove:
 Crankshaft position sensor
O-ring
 Pickup coil rotor cover “1”
NOTE:
Loosen each bolt 1/4 of a turn at a time, in 
stages and in a crisscross pattern.
After all of the bolts are fully loosened, remove 
them.
EAS24540
INSTALLING THE CRANKSHAFT POSITION 
SENSOR
1. Install:
Gasket 
 Pickup rotor cover “1”
 O-ring 
 Crankshaft position sensor2. Connect
 Crankshaft position sensor lead coupler
Pickup rotor cover
12 Nm (1.2 m·kg, 8.7 ft·lb)
Crankshaft position sensor bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
LOCTITE®
New
New 
						

							ELECTRIC STARTER
5-39
EAS24780
ELECTRIC STARTER
Removing the starter motor
Order Job/Parts to remove Q’ty Remarks
Rider seat Refer to GENERAL CHASSIS on page 4-1.
Fuel tank Refer to FUEL TANK on page 7-1.
Air filter case Refer to GENERAL CHASSIS on page 4-1.
Throttle body  Refer to THROTTLE BODIES on page 7-4.
1 Starter motor lead 1 Disconnect.
2 Starter motor 1
For installation, reverse the removal proce-
dure. 
						

							ELECTRIC STARTER
5-40
Disassembling the starter motor
Order Job/Parts to remove Q’ty Remarks
1O-ring 1
2Front cover 1
3 Lock washer 1
4 Washer 1
5 Star ter motor yoke 1
6 Armature assembly 1
7Gasket 2
8 Brush holder 1
9 Rear cover 1
For assembly, reverse the removal proce-
dure.