Yamaha 2007 R6 Service

ENGINE
3-8
b. Turn all of the bypass air screws in fully.
c. Using the throttle body with the lowest vacu-
um pressure as the standard, turn out the by-
pass air screws of the other throttle bodies to 
adjust them.
NOTE:
Do not turn out the bypass air screw of the 
throttle body with the lowest vacuum pressure.
After each step, rev the engine two or three 
times, each time for less than a second, and 
check the synchronization again.
If an air screw was removed, turn the screw 3/4 
turn in and be sure...

ENGINE
3-9
1. Remove:
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 “AIR FILTER CASE” on page 7-5.
Canister (for California only)
Refer to “THROTTLE BODIES” on page 7-8.
Air induction system solenoid
Refer to “AIR INDUCTION SYSTEM” on 
page 7-15.
2. Remove:
Ignition coils
Spark plugs
CAUTION:
ECA13320
Before removing the spark plugs, blow away 
any dirt accumulated in the spark plug wells 
with compressed air to prevent it...

ENGINE
3-10
Radiator
Refer to “RADIATOR” on page 6-1.
4. Remove:
Ignition coils
Spark plugs
CAUTION:
ECA13340
Before removing the spark plugs, use com-
pressed air to blow away any dirt accumulat-
ed in the spark plug wells to prevent it from 
falling into the cylinders.
5. Install:
Compression gauge “1”
Extension “2”
6. Measure:
Compression pressure
Out of specification → Refer to steps (c) and 
(d).



 
 
 








 
 



 
 



 
 







a. Set the main switch to “ON”.
b. With the throttle...

ENGINE
3-11
4. Check:
Engine oil level
The engine oil level should be between the 
minimum level mark “a” and maximum level 
mark “b”.
Below the minimum level mark → Add the 
recommended engine oil to the proper level.
NOTE:
Before checking the engine oil level, wait a few 
minutes until the oil has settled.
Do not screw the dipstick in when inspecting 
the oil level.
5. Start the engine, warm it up for several min-
utes, and then turn it off.
6. Check the engine oil level again.
NOTE:
Before checking...

ENGINE
3-12
d. Lubricate the O-ring “1” of the new oil filter 
cartridge with a thin coat of engine oil.
CAUTION:
EC2C01006
Make sure the O-ring “1” is positioned cor-
rectly in the groove of the oil filter cartridge.
e. Tighten the new oil filter cartridge to specifi-
cation with an oil filter wrench.
f. Insert the fuel tank breather hose (except for 
California) and fuel tank overflow hose into 
the guide and place them in their original po-
sition.
g. Install the shift arm “1” by aligning the match...

ENGINE
3-13
2. Start the engine, warm it up for several min-
utes, and then turn it off.
CAUTION:
ECA13410
When the engine is cold, the engine oil will 
have a higher viscosity, causing the engine 
oil pressure to increase. Therefore, be sure 
to measure the engine oil pressure after 
warming up the engine.
3. Remove:
Left lower side cowling
Left bottom cowling
Refer to “GENERAL CHASSIS” on page 4-1.
4. Remove:
Main gallery bolt “1”
WARNING
EWA12980
The engine, muffler and engine oil are ex-
tremely...

ENGINE
3-14



 
 
 








 
 



 
 



 
 







Handlebar side
a. Turn the adjusting bolt “1” in direction “a” or 
“b” until the specified clutch lever free play is 
obtained.
NOTE:
If the specified clutch lever free play cannot be 
obtained on the handlebar side of the cable, use 
the adjusting nut on the engine side.
         



 
 
 








 
 



 
 



 
 







Engine side
a. Loosen the locknut “1”.
b. Turn the adjusting nut “2” in direction “a” or “b”...

ENGINE
3-15
EAS21010
CHECKING THE THROTTLE BODY JOINTS
The following procedure applies to all of the 
throttle body joints and intake manifolds.
1. Remove:
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 “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.
2. Check:
Throttle body joints “1”
Cracks/damage → Replace.
3....

ENGINE
3-16
EAS21080
CHECKING THE EXHAUST SYSTEM
The following procedure applies to all of the ex-
haust pipe assembly and gaskets.
1. Remove:
Side cowlings
Bottom cowlings
Refer to “GENERAL CHASSIS” on page 4-1.
2. Check:
Exhaust pipe assembly “1”
Muffler “2”
Cracks/damage → Replace.
Gaskets “3”
Exhaust gas leaks → Replace.
3. Check:
Tightening torque
Exhaust pipe assembly and cylinder head 
nuts “4”
Exhaust pipe assembly and exhaust pipe as-
sembly bracket bolts “5”
Exhaust pipe assembly and...

ENGINE
3-17
2. Check:
EXUP system operation



 
 
 








 
 



 
 



 
 







a. Activate the diagnostic mode and select the 
diagnostic code number “53”.
Refer to “FUEL INJECTION SYSTEM” on 
page 8-33.
b. Set the engine stop switch to “”.
c. Check that the EXUP valve operates proper-
ly.
NOTE:
Check that the projection “a” on the EXUP valve 
pulley contacts the stopper “b” (fully open posi-
tion). If the projection does not contact the stop-
per, adjust the EXUP cable free play.
  ...