Yamaha 2007 R6 Service

ELECTRICAL COMPONENTS
8-88



 
 
 








 
 



 
 



 
 







Charging method using a variable-current 
(voltage) charger
a. Measure the open-circuit voltage prior to 
charging.
NOTE:
Voltage should be measured 30 minutes after 
the engine is stopped.
b. Connect a charger and ammeter to the bat-
tery and start charging.
NOTE:
Set the charging voltage at 16–17 V. If the set-
ting is lower, charging will be insufficient. If too 
high, the battery will be over-charged.
c. Make sure that the current...

ELECTRICAL COMPONENTS
8-89
10.Install:
•Fuel tank bracket
•Rider seat
Refer to “GENERAL CHASSIS” on page 4-1.
EAS28040
CHECKING THE RELAYS
Check each switch for continuity with the pocket 
tester. If the continuity reading is incorrect, re-
place the relay.
1. Disconnect the relay from the wire harness.
2. Connect the pocket tester (Ω × 1) and battery 
(12 V) to the relay terminal as shown.
Check the relay operation.
Out of specification → Replace.
Starter relay
1.
Relay unit (starting circuit cut-off...

ELECTRICAL COMPONENTS
8-90
Headlight relay (dimmer)
Radiator fan motor relay
ET2C01021
CHECKING THE TURN SIGNAL RELAY
1. Check:
•Turn signal relay input voltage
Out of specification → The wiring circuit from 
the main switch to the turn signal relay cou-
pler is faulty and must be repaired.



 
 
 








 
 



 
 



 
 



 



a. Connect the pocket tester (DC 20 V) to the 
turn signal relay terminal as shown.
b. Turn the main switch to “ON”.
c. Measure the turn signal relay input voltage.
  ...

ELECTRICAL COMPONENTS
8-91
b. Turn the main switch to “ON”.
c. Measure the turn signal relay output voltage.
         
EAS28050
CHECKING THE RELAY UNIT (DIODE)
1. Check:
•Relay unit (diode)
Out of specification → Replace.
NOTE:
The pocket tester or the analog pocket tester 
readings are shown in the following table.



 
 
 








 
 



 
 



 
 



 



a. Disconnect the relay unit coupler from the 
wire harness.
b. Connect the pocket tester (Ω × 1) to the relay 
unit...

ELECTRICAL COMPONENTS
8-92
c. Check the relay unit (diode) for continuity.
d. Check the relay unit (diode) for no continuity.
         
EAS28100
CHECKING THE IGNITION COILS
The following procedure applies to all of the igni-
tion coils.
1. Check:
•Primary coil resistance
Out of specification → Replace.



 
 
 








 
 



 
 



 
 







a. Remove the ignition coil from the spark plug.
b. Connect the pocket tester (Ω × 1) to the igni-
tion coil as shown.
c. Measure...

ELECTRICAL COMPONENTS
8-93
d. Crank the engine by pushing the start switch 
“” and gradually increase the spark gap un-
til a misfire occurs.
         
EAS28120
CHECKING THE CRANKSHAFT POSITION 
SENSOR
1. Disconnect:
•Crankshaft position sensor coupler
(from the wire harness)
2. Check:
•Crankshaft position sensor resistance
Out of specification → Replace the crank-
shaft position sensor.



 
 
 








 
 



 
 



 
 







a. Connect the pocket tester (Ω × 100) to...

ELECTRICAL COMPONENTS
8-94
This check is likely to produce sparks, 
therefore, make sure no flammable gas or 
fluid is in the vicinity.
b. Check the starter motor operation.
         
EAS28150
CHECKING THE STATOR COIL
1. Disconnect:
•Stator coil coupler
(from the wire harness)
2. Check:
•Stator coil resistance
Out of specification → Replace the stator coil.



 
 
 








 
 



 
 



 
 







a. Connect the pocket tester (Ω × 1) to the stator 
coil coupler as...

ELECTRICAL COMPONENTS
8-95
EAS28180
CHECKING THE HORN
1. Check:
•Horn resistance
Out of specification → Replace.



 
 
 








 
 



 
 



 
 







a. Disconnect the horn leads from the horn ter-
minals.
b. Connect the pocket tester (Ω × 1) to the horn 
terminals.
c. Measure the horn resistance.
         
2. Check:
•Horn sound
Faulty sound → Adjust or replace.



 
 
 








 
 



 
 



 
 







a. Connect a battery (12 V) to the horn.
b. Turn the adjusting...

ELECTRICAL COMPONENTS
8-96
•Fuel sender coupler
(from the wire harness)
2. Remove:
•Fuel tank
3. Remove:
•Fuel pump
(from the fuel tank)
4. Check:
•Fuel sender resistance



 
 
 








 
 



 
 



 
 







a. Connect the pocket tester (Ω × 1) to the fuel 
sender terminal as shown.
b. Measure the fuel sender resistance.
         
EAS28240
CHECKING THE SPEED SENSOR
1. Check:
•Speed sensor output voltage
Out of specification → Replace.



 
 
 








 
 



 
 



 
...

ELECTRICAL COMPONENTS
8-97
EAS28260
CHECKING THE COOLANT TEMPERATURE 
SENSOR
1. Remove:
•Coolant temperature sensor
Refer to “THERMOSTAT” on page 6-7.
WARNING
EWA14130
Handle the coolant temperature sensor 
with special care.
Never subject the coolant temperature sen-
sor to strong shocks. If the coolant temper-
ature sensor is dropped, replace it.
2. Check:
•Coolant temperature sensor resistance
Out of specification → Replace.



 
 
 








 
 



 
 



 
 







a. Connect the pocket tester (Ω ×...