Yamaha Fz1n Service Manual

ELECTRIC STARTING SYSTEM
8-7
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
8-8
a. WHEN THE TRANSMISSION IS IN NEU-TRAL
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. Starting circuit cut-off relay
7. Diode
8. Clutch switch
9. Sidestand switch
10.Neutral switch
11.Start switch
12.Starter relay
13.Starter motor 

ELECTRIC STARTING SYSTEM
8-9
EAS27190
TROUBLESHOOTING
The starter motor fails to turn.
NOTE:
 Before troubleshooting, remove the following part(s):
1 Rider and passenger seat
2 Fuel tank
3 Air filter caseNG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
1 Check the fuses.
(Main and ignition)
Refer to CHECKING THE FUSES 
on page 8-97. Replace the fuse(s).
2 Check the battery. Refer to CHECKING AND 
CHARGING THE BATTERY on 
page 8-97.  Clean the battery terminals.
 Recharge or replace the...

ELECTRIC STARTING SYSTEM
8-10
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 8-93. Replace the immobilizer kit.
9 Check the engine stop switch. Refer to CHECKING THE 
SWITCHES on page 8-93. Replace the right handlebar switch.
10 Check the neutral switch. Refer to CHECKING THE 
SWITCHES on page 8-93. Replace the neutral switch.
11 Check the sidestand switch. Refer to CHECKING THE 
SWITCHES on page 8-93. Replace the sidestand...

CHARGING SYSTEM
8-11
EAS27200
CHARGING SYSTEM
EAS27210
CIRCUIT DIAGRAM 

CHARGING SYSTEM
8-12
2. Rectifier/regulator
3. A.C.magneto
6. Fuse (main)
7. Battery 

CHARGING SYSTEM
8-13
EAS27230
TROUBLESHOOTING
The battery is not being charged.
NOTE:
 Before troubleshooting, remove the following part(s):
1 Rider and passenger seatNG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
NG→
OK ↓
1 Check the fuse.
(Main)
Refer to CHECKING THE FUSES 
on page 8-97. Replace the fuse.
2 Check the battery. Refer to CHECKING AND 
CHARGING THE BATTERY on 
page 8-97.  Clean the battery terminals.
 Recharge or replace the battery.
3 Check the stator coil. Refer to CHECKING THE STATOR 
COIL on...

CHARGING SYSTEM
8-14 

LIGHTING SYSTEM
8-15
EAS27240
LIGHTING SYSTEM
EAS27250
CIRCUIT DIAGRAM (FZ1-N) 

LIGHTING SYSTEM
8-16
1. Main switch
6. Fuse (main)
7. Battery
23.ECU
49.High beam indicator light
52.Meter light
61.Pass switch
62.Dimmer switch
72.Auxiliary light
73.Headlight
74.License plate light
75.Tail/brake light
76.Headlight relay (on/off)
77.Fuse (tail light))
81.Fuse (headlight)