Yamaha 2007 R6 Service

ENGINE REMOVAL
5-2
12 Exhaust pipe assembly bracket (right side) 1
13 EXUP servo motor bracket 1
14 EXUP servo motor cover 1
15 EXUP servo motor coupler 1 Disconnect.
16 EXUP servo motor 1
For installation, reverse the removal proce-
dure.
Removing the exhaust pipe assembly
Order Job/Parts to remove Q’ty Remarks
LSLT
12
10
1
2
35
4
6 8
(8)7 9
New
LT
T R..20 Nm (2.0 m  
kg, 14 ft  Ib)
T R..20 Nm (2.0 m  
kg, 14 ft  Ib)
T R..20 Nm (2.0 m  
kg, 14 ft  Ib)
New
T R..7 Nm (0.7 m  
kg, 5.1 ft  Ib)
T...

ENGINE REMOVAL
5-3
Disconnecting the leads and hoses
Order Job/Parts to remove Q’ty Remarks
Fuel tank Refer to “FUEL TANK” on page 7-1.
Air filter case Refer to “AIR FILTER CASE” on page 7-5.
Canister (for California only) Refer to “THROTTLE BODIES” on page 7-8.
Throttle body Refer to “THROTTLE BODIES” on page 7-8.
Air cut-off valveRefer to “AIR INDUCTION SYSTEM” on 
page 7-15.
Starter motorRefer to “ELECTRIC STARTER” on page 
5-33.
Thermostat Refer to “THERMOSTAT” on page 6-7.
Radiator Refer to...

ENGINE REMOVAL
5-4
6 Negative battery terminal 1 Disconnect.
7 Engine ground terminal 1 Disconnect.
8 Oil level switch coupler 1 Disconnect.
9 Crankshaft position sensor coupler 1 Disconnect.
10 Neutral switch coupler 1 Disconnect.
11 Speed sensor 1
12 Stator coil assembly coupler 1 Disconnect.
13 Clutch cable 1 Disconnect.
14 Cylinder identification sensor coupler 1 Disconnect.
15 Ignition coil coupler 4 Disconnect.
For installation, reverse the removal proce-
dure.
Disconnecting the leads and hoses...

ENGINE REMOVAL
5-5
Removing the engine
Order Job/Parts to remove Q’ty Remarks
NOTE:
Place a suitable stand under the engine.
1 Engine mounting bolt (front right side) 2
2 Engine mounting collar (outside) 2
3 Engine mounting collar (inside) 2
4 Engine mounting bolt (front left side) 2
5 Engine mounting nut (rear upper side) 1
6 Engine mounting collar (outside) 1
7 Engine mounting collar (inside) 1
8 Engine mounting bolt (rear upper side) 1
9 Engine mounting nut (rear lower side) 1
10 Engine mounting...

ENGINE REMOVAL
5-6
EAS23720
INSTALLING THE ENGINE
1. Install:
•Engine “1”
•Engine mounting bolt (rear lower side) “2”
•Engine mounting bolt (rear upper side) “3”
•Engine mounting collars (inside) “4”
•Engine mounting collars (outside) “5”
•Engine mounting nut (rear lower side) “6”
(temporarily tighten)
•Engine mounting nut (rear upper side) “7”
(temporarily tighten)
•Engine mounting bolts (front left side) “8”
(temporarily tighten)
•Engine mounting collars (inside) “9”
•Engine mounting collars (outside)...

CAMSHAFTS
5-7
EAS23760
CAMSHAFTS
Removing the cylinder head cover
Order Job/Parts to remove Q’ty Remarks
Radiator Refer to “RADIATOR” on page 6-1.
Throttle body Refer to “THROTTLE BODIES” on page 7-8.
Air cut-off valve/Reed valve assemblyRefer to “AIR INDUCTION SYSTEM” on 
page 7-15.
1 Ignition coil 4
2 Spark plug 4
3 Cylinder identification sensor 1
4 Cylinder head cover 1
5 Cylinder head cover gasket 1
6 Timing chain guide (upper side) 1
For installation, reverse the removal proce-
dure.
2
1
4
63 (6)...

CAMSHAFTS
5-8
Removing the camshafts
Order Job/Parts to remove Q’ty Remarks
Pickup rotor cover Refer to “PICKUP ROTOR” on page 5-30.
1 Camshaft sprocket bolt 4 Loosen.
2 Timing chain tensioner 1
3 Timing chain tensioner gasket 1
4 Intake camshaft cap 3
5 Exhaust camshaft cap 3
6 Camshaft sprocket 2
7 Intake camshaft 1
8 Exhaust camshaft 1
9Pin 2
10 Timing chain guide (intake side) 1
11 Timing chain guide (exhaust side) 1
For installation, reverse the removal proce-
dure.
T R..10 Nm (1.0 m  
kg, 7.2 ft ...

CAMSHAFTS
5-9
EAS23810
REMOVING THE CAMSHAFTS
1. Remove:
•Pickup rotor cover
Refer to “PICKUP ROTOR” on page 5-30.
2. Align:
•TDC mark on the pickup rotor
(with the crankcase mating surface)



 
 
 








 
 



 
 



 
 







a. Turn the crankshaft clockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the TDC mark “a” on the 
pickup rotor with the crankcase mating sur-
face “b”.
NOTE:
TDC on the compression stroke can be found 
when the camshaft lobes are turned away from 
each...

CAMSHAFTS
5-10
3. Measure:
•Camshaft runout
Out of specification → Replace.4. Measure:
•Camshaft-journal-to-camshaft-cap clearance
Out of specification → Measure the camshaft 
journal diameter.



 
 
 








 
 



 
 



 
 



 



a. Install the camshaft into the cylinder head 
(without the camshaft caps).
b. Position a strip of Plastigauge
® “1” onto the 
camshaft journal as shown.
c. Install the camshaft caps.
NOTE:
•Tighten the camshaft cap bolts in stages and in 
a crisscross pattern, working...

CAMSHAFTS
5-11
         
5. Measure:
•Camshaft journal diameter “a”
Out of specification → Replace the camshaft.
Within specification → Replace the cylinder 
head and the camshaft caps as a set.
EAS23870
CHECKING THE TIMING CHAIN, CAMSHAFT 
SPROCKETS, AND TIMING CHAIN GUIDES
1. Check:
•Timing chain “1”
Damage/stiffness → Replace the timing 
chain and camshaft and camshaft sprocket 
as a set.
2. Check:
•Camshaft sprocket
More than 1/4 tooth wear “a” → Replace the 
camshaft...