2009 Yamaha F40 Outboard Service Manual, Page 106Get this manual
Electrical system
ECM coupler layout
434241403938373635 525150494847464544
1716 15141312 1110 3433323130292827262524232221201918
No1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Connecting part
Connecting part Tachometer (remote control) ISC ISC Pulser coil Engine start switch Diagnostic flash indicator Oil pressure alert indicator Ground Alert buzzer Ignition coil #3 Ignition coil #2 Ignition coil #1 Main relay (high-pressure fuel pump) Main relay Main relay Overheat alert indicator Ground Vapor shut-off valve Fuel injector #3 Fuel injector #2 Fuel injector #1