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...

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”...

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.
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EAS24600
INSTALLING THE STARTER CLUTCH
1. Install:
 Generator rotor “1”
 Damper “2”
 Driven gear “3”...

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...

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...

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.