Yamaha Star XVS13AA(C) 2011 Service Manual page 515

c. Measure the spark plug cap resistance.
L LLL L LLL L L LLL L L LLL L
EAS28100
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
2.16–2.64 Ω
M MMM M MMM M M MMM M M MMM M
a. Disconnect the ignition coil connectors from
the ignition coil terminals.
b. Connect the pocket tester (Ω × 1) to the igni-
tion coil as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
black/red "1"
• Negative tester probe →
orange or gray/red "2"
c. Measure the primary coil resistance.
L LLL L LLL L L LLL L L LLL L
2. Check:
• Secondary coil resistance
Out of specification → Replace.
L LLL L L LLL L LLL
M MMM M M MMM M MMM
L LLL L L LLL L LLL
8-108
ELECTRICAL COMPONENTS
Secondary coil resistance
8.64–12.96 kΩ
M MMM M MMM M M MMM M M MMM M
a. Disconnect the spark plug cap from the igni-
tion coil.
b. Connect the pocket tester (Ω × 1k) to the ig-
nition coil as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
black/red "1"
• Negative tester probe →
spark plug lead "2"
c. Measure the secondary coil resistance.
L LLL L LLL L L LLL L L LLL L
EAS28120
CHECKING THE CRANKSHAFT POSITION
SENSOR
1. Disconnect:
• Crankshaft position sensor coupler
(from the wire harness)
2. Check:
• Crankshaft position sensor resistance
Out of specification → Replace the crank-
shaft position sensor/stator assembly.
Crankshaft position sensor resis-
tance
248–372 Ω
M MMM M MMM M M MMM M M MMM M
a. Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
M MMM M M MMM M MMM
L LLL L L LLL L LLL
M MMM M M MMM M MMM