Yamaha 2009 XP500Y TMAX Service Manual page 299

IGNITION SYSTEM
1. Crankshaft position sensor
4. Main switch
11.Ignition fuse
14.Battery
15.Main fuse
20.Engine stop switch
28.Sidestand switch
29.ECU (engine control unit)
30.Ignition coil
31.Spark plug
39.Lean angle sensor
8-2