Yamaha VMX12 2001 Service Manual page 405

• Measure the secondary coil resistance.
Secondary coil resistance
10.56 ~ 15.84 kΩ at 20 °C
• Is the ignition coil OK?
YES
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 → orange 1
Negative tester probe → black 2
• Measure the pickup coil resistance.
Pickup coil resistance
80.8 ~ 121.2 Ω at 20 °C
(between orange and black)
• Is the pickup coil OK?
YES
NO
Replace the ignition
coil.
NO
Replace the pickup
coil.
IGNITION SYSTEM
EAS00749
8. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
EAS00750
9. Engine stop switch
• Check the engine stop switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the engine stop switch OK?
EAS00751
10.Neutral switch
• Check the neutral switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the neutral switch OK?
EAS00752
11.Sidestand switch
• Check the sidestand switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the sidestand switch OK?
8 - 13
ELEC
YES
Replace the
switch.
YES
Replace the
handlebar switch.
YES
Replace the neutral
switch.
YES
Replace the
stand switch.
– +
NO
main
NO
right
NO
NO
side-