Yamaha YZF-R1 1998, Service Manual, Page: 406 / 418

8 - 60
– +
ELEC
SELF-DIAGNOSIS
EB812040
3. Fuel level indicator light
CIRCUIT DIAGRAM
B/R L
B/Y B/L
Y/L B/R
W/B B/Y
Br/W
Br
L/Y
B
G
B
G/W
B
Dg
Dg
B
B
Ch
B
B
Dg
Dg
B
B
L
B
G/W Br
R/G B/L
Y Sb
L/Y
G/Y Y/B W B/R
L Dg
G/R
Ch
B/L
G/Y
R/W B/Y Sb
O B/R Y/B
Gy L/R
B
R
B
B/Y Sb L/Y
L/W R/B
B
Y L W/R
W Gy B
Y L B/L
WIRE HARNESS HEADLIGHT SUB-WIRE HARNESS
A
R/Y
R/Y
B L/Y W/G
W W/Y Br G/W
Y/B
Dg
Ch R/G
Sb L
L/R
G/R
Br/L
R/L G/Y
G/R
Br/L
Ch Sb L/R
G/W R/G L Dg
G/Y
Br
B
W
L/Y W/Y
W/G R/Y
R/Y
B/R Y/B
OFF
(GREEN) (GREEN)
L/B
B
B/L
B
(BLACK) (BLACK)
B
B
(BLUE) (BLUE)
G/W
L/Y
B
R/B
L/R
R/B
R/W
O
L L
L
Y
Y
B
W
P
B Y
Ch
Dg
Ch
Br
Dg
L
Br
Y/B Sb
Sb Sb
B
B
B
Gy
B/Y
G/Y
B/R
B/L
O/
Y/B
L/Y
Y/B
L/Y
B/
W
L/Y
B/L
B/L
B/L
W/R
Gy
A
W W
A
A
Dg
A
Br
A
L
O
O
A
A
A
G/R
G/Y
B/R
Br/W
R/G
B/L G/W
G/R
A
B/R
R/L
A
G/W
A
G/Y
A
R/G
A
B/L
A
A
D
C
F
E
G
`
a
W
c b b
N
O
P
Q
T
U
V
R
S
M
D Fuel sender
G Ignitor unit
O Fuel level indicator light
S Combination meter
EB812403
YES
NO
1.Fuel level indicator light LED
• Check the LED of the fuel level indicator
light.
Refer to “CHECKING THE LEDs”.
• Is the fuel level indicator light LED OK?
Repair the fuel level
indicator light LED.
EB812404
YES
NO
2.Fuel sender
• Disconnect the fuel sender coupler from
the wire harness.
• Connect the pocket tester (W
×
1) to the
fuel sender coupler as shown.
Tester positive probe
→
green 1
Tester negative probe
→
black 2
• Check the fuel sender for continuity.
• Is the fuel sender OK?
Replace the fuel
sender.