Yamaha Royal Star Tour Deluxe XVZ13CTTC Supplementary Service Manual page 50

• Measure the primary coil resistance.
Primary coil resistance
3.57 ~ 4.83 Ω at 20 °C (68 °F)
• Connect the pocket tester (Ω × 1k) to the
ignition coil as shown.
• Measure the secondary coil resistance.
Positive tester probe → spark plug lead 1
Negative tester probe →
• Measure the secondary coil resistance.
Secondary coil resistance
10.71 ~ 14.49 kΩ at 20 °C (68 °F)
• Is the ignition coil OK?
YES
ignition coil base 2
NO
Replace the ignition
coil.
– 43 –
IGNITION SYSTEM
EAS00748
7. Pickup coil resistance
• Disconnect the pickup coil coupler from
the wire harness.
• Connect the pocket tester (Ω × 100) to the
pickup coil terminal as shown.
Positive tester probe → gray 1
Negative tester probe → black 2
• Measure the pickup coil resistance.
Pickup coil resistance
189 ~ 231 Ω at 20 °C (68 °F)
(between gray and black)
• Is the pickup coil OK?
YES
EAS00749
8. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
– +
ELEC
2
1
Gy
B
NO
Replace the pickup
coil.
NO
Replace the main
switch.