Yamaha YZF-R1 Series Service Manual page 479

TIP
The digital circuit tester readings are shown in
the following table.
Continuity
Positive tester probe
sky blue "1"
Negative tester probe
black/yellow "2"
No continuity
Positive tester probe
black/yellow "2"
Negative tester probe
sky blue "1"
Continuity
Positive tester probe
sky blue "1"
Negative tester probe
blue/yellow "3"
No continuity
Positive tester probe
blue/yellow "3"
Negative tester probe
sky blue "1"
Continuity
Positive tester probe
sky blue "1"
Negative tester probe
sky blue/white "4"
No continuity
Positive tester probe
sky blue/white "4"
Negative tester probe
sky blue "1"
Continuity
Positive tester probe
blue/black "5"
Negative tester probe
blue/yellow "3"
No continuity
Positive tester probe
blue/yellow "3"
Negative tester probe
blue/black "5"
Br/W L/W
L/R L/W R/W L/B L/Y Sb B/Y Sb/W
R/W L R/L
8-44
ELECTRICAL COMPONENTS
a. Disconnect the relay unit coupler from the
wire harness.
b. Connect the digital circuit tester (Ω) to the
relay unit terminal as shown.
c. Check the relay unit (diode) for continuity.
d. Check the relay unit (diode) for no continu-
ity.
EAS30558
CHECKING THE IGNITION COILS
The following procedure applies to all of the igni-
tion coils.
1. Check:
• Primary coil resistance
Out of specification → Replace.
Primary coil resistance
0.85–1.15 Ω
a. Disconnect the ignition coil coupler from
the ignition coil.
b. Connect the digital circuit tester (Ω) to the
ignition coil as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
Ignition coil terminal "1"
• Negative tester probe
Ignition coil terminal "2"
c. Measure the primary coil resistance.
2. Check:
• Secondary coil resistance
Out of specification → Replace.
Secondary coil resistance
8.50–11.50 kΩ
a. Connect the digital circuit tester (Ω) to the
ignition coil as shown.
1
2