Yamaha YZF-R1K Service Manual page 389

EB812030
2. EXUP
CIRCUIT DIAGRAM
B/R L Y/L B/R
B/Y B/L W/B B/Y
L Y B/L
E EXUP servomotor
G Ignitor unit
EB812400
1.Wire harness
• Check the wire harness for continuity.
Refer to "CIRCUIT DIAGRAM".
• Is the wire harness OK?
8
B
R/B R/B
B/L B/R B Y/B O
R/W
G/Y Sb B/Y R/W L/R Gy
Gy W L/B
W/R Y L
L/R
G/Y
B/Y
B/R
E
G
L L
W/R W/R
B/L
B/L
F
Y
L
Y
B/L
L/B Y/B Sb
W B
YES
Repair or
the wire harness.
SELF-DIAGNOSIS
EB812402
2.EXUP servomotor
• Check the EXUP servomotor for continu-
ity.
Refer to "EXUP SYSTEM".
• Is the EXUP servomotor OK?
B
O O
Replace the ignitor
R/B
unit.
B
Gy Gy
Gy Gy
B/L
NO
replace
8 - 60
ELEC
NO
YES
Replace the EXUP
servomotor.
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