Yamaha 2007 R6 Service

ELECTRIC STARTING SYSTEM
8-8
3. Main switch
4. Ignition fuse
6. Main fuse
7. Battery
8. Starter relay
10.Starter motor
11.Engine ground
13.Relay unit
14.Starting circuit cut-off relay
16.Neutral switch
17.Sidestand switch
64.Engine stop switch
65.Start switch
70.Clutch switch 

ELECTRIC STARTING SYSTEM
8-9
EAS27180
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION
If the engine stop switch is set to “” and the main switch is set to “ON” (both switches are closed), the 
starter motor can only operate if at least one of the following conditions is met:
•The transmission is in neutral (the neutral switch is closed).
•The clutch lever is pulled to the handlebar (the clutch switch is closed) and the sidestand is up (the 
sidestand switch is closed).
The starting circuit cut-off relay...

ELECTRIC STARTING SYSTEM
8-10
a. WHEN THE TRANSMISSION IS IN 
NEUTRAL
b. WHEN THE SIDESTAND IS UP AND THE 
CLUTCH LEVER IS PULLED TO THE 
HANDLEBAR
1. Battery
2. Main fuse
3. Main switch
4. Ignition fuse
5. Engine stop switch
6. Relay unit (starting circuit cut-off relay)
7. Relay unit (diode)
8. Clutch switch
9. Sidestand switch
10. Neutral switch
11. Start switch
12. Starter relay
13. Starter motor
14. Engine ground 

ELECTRIC STARTING SYSTEM
8-11
EAS27190
TROUBLESHOOTING
The starter motor fails to turn.
NOTE:
•Before troubleshooting, remove the following part(s):
1. Rider seat
2. Fuel tank
3. Air filter case
4. Canister (for California only)
5. Side cowlings
6. Thermostat
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 OK →
NG ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓ 1. Check the fuses.
(Main and ignition)
Refer to “CHECKING THE FUS-
ES” on page 8-85.Replace the fuse(s).
2. Check the battery.
Refer to “CHECKING AND...

ELECTRIC STARTING SYSTEM
8-12
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓ 8. Check the main switch.
Refer to “CHECKING THE 
SWITCHES” on page 8-81.Replace the main switch.
9. Check the engine stop switch.
Refer to “CHECKING THE 
SWITCHES” on page 8-81.Replace the right handlebar switch.
10.Check the neutral switch.
Refer to “CHECKING THE 
SWITCHES” on page 8-81.Replace the neutral switch.
11.Check the sidestand switch.
Refer to “CHECKING THE 
SWITCHES” on...

CHARGING SYSTEM
8-13
EAS27200
CHARGING SYSTEM
EAS27210
CIRCUIT DIAGRAM
ON
OFF
G/Y L/W
R/W
R/BB Br R
RR R
R/W L/W
B
Br
Br
R
RR
R
R
B
WWW
WWWR
RRR
R
B
BBB
A
R/WL/W2R/B
G/Y
L/W
(BLACK)
R/W
L/W3
R/W
(BLUE)
(BLUE)
R/W
R/GBr/L
Br/L
L/YL/B2
R/W
G/YL/W2R/WR/BBBr WWW
Br/L
Br/L
Br
R/YR/Y
R/Y WWW
BR
WWW
63 62
64 6513 12
6 2
5
4 31
89 7
10 11
85
86(RED) L/YL/B2(RED)L/Y L/B
R
Br/LR
Br/L 

CHARGING SYSTEM
8-14
1. AC magneto
2. Rectifier/regulator
6. Main fuse
7. Battery
11.Engine ground 

CHARGING SYSTEM
8-15
EAS27230
TROUBLESHOOTING
The battery is not being charged.
NOTE:
•Before troubleshooting, remove the following part(s):
1. Rider seat
2. Fuel tank
3. Bottom cowlings
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓
 
 NG →
OK ↓ 1. Check the fuse.
(Main)
Refer to “CHECKING THE FUS-
ES” on page 8-85.Replace the fuse.
2. Check the battery.
Refer to “CHECKING AND 
CHARGING THE BATTERY” on 
page 8-86.•Clean the battery terminals.
•Recharge or replace the battery.
3. Check the stator...

CHARGING SYSTEM
8-16 

LIGHTING SYSTEM
8-17
EAS27240
LIGHTING SYSTEM
EAS27250
CIRCUIT DIAGRAM
(RED) L/YL/B2
(RED)L/Y L/BR
Br/LR
Br/L
LL
Gy B Gy
B/L
B BL/BB ON
OFF
W W
G/Y L/W
R/W
R/BB Br
B
L
B
LR
RR RR/W L/WYL/RB Y L
B Br YB BB
R/LB
G/W
BrGRG/Y2R/W
Ch
ChB
B
B/L Y/GLP
B/WO/R
W
B/LL/Y
DgB
L
B/L
W/Y
L
B/LW/B
R/YB/GY/B2R/Y
Ch
ChB
B
Dg
DgB
BO
BB
B
B
B
B/G
B/YB Y
Gy/R
B/GB
B/YBL/R L/RB
Y/B1
B/W
Y/L
B/R R/G
BrG/W
L/W2Sb/W
B/YDg
Ch L
B/L
W/RL
W
B/LG/W
O/G
R/LR/BR/LL/BR/LW/L
R/LG/BR/LO/BR/LSb/WR/LBr/B
R/LBr/Y
Gy/GBr/R
R/W
Br/R
Br/R...