Yamaha MTN850-A 2017 Service Manual page 359

IGNITION SYSTEM
3. Main switch
4. Main fuse
13.Ignition fuse
18.Battery
19.Engine ground
20.Fuel injection system fuse
23.Joint connector
24.Joint coupler
25.Relay unit
30.ECU (Engine Control Unit)
31.Ignition coil #1
32.Ignition coil #2
33.Ignition coil #3
34.Spark plug
40.Crankshaft position sensor
45.Lean angle sensor
70.Gear position switch
73.Sidestand switch
74.Handlebar switch (right)
76.Start/engine stop switch
A. Wire harness
D. Negative battery sub-wire harness
8-2