Yamaha VK540EF 2000 Manuel D'atelier page 328

IGNITION SYSTEM
MAIN SWITCH
1. Disconnect:
S Main switch coupler
2. Connect:
S Pocket tester
3. Check:
S Main switch continuity
Faulty ! Repalce.
Switch position
OFF
ON
Color code
Switch
position
Br B
OFF
ON
START
Continuity
7-7
ELEC
Continuity
Yes
No
B / W R / W R