2009 Yamaha F40 Outboard Service Manual, Page 92Get this manual
Electrical system
Electrical component and wiring harness routing 5-1
Port view 5-1 Starboard view 5-3 Front view 5-5 Rear view 5-6 Top view 5-7 Bottom cowling (tiller handle model) 5-8 Bottom cowling (remote control model) 5-9 Tiller handle (tiller handle model) 5-10
Circuit diagram 5-12 ECM coupler layout 5-13 Checking the electrical component 5-14
Checking by use of YDIS 5-14 Measuring the peak voltage 5-14 Checking by using the digital tester 5-15
Engine control units and components 5-15