Yamaha YQ50 Service Manual page 162

7.Connections
Check all connections in the starter system.
Refer to "WIRING DIAGRAM".
IGNITION AND STARTING SYSTEM
LW B
OFF
ON
B YB L
LW YR LR
MEETS
SPECIFICATION
8-12
DOES NOT MEET
SPECIFICATION
Starter switch defect © Replace right handle-
bar switch.
POOR CONNECTIONS
Repair.
ELEC