2009 Yamaha F40 Outboard Service Manual, Page 122Get this manual

Electrical system 4Remove the neutral switch5Check the neutral switch continuity
b c9Check the wiring harness for continuityNeutral switch continuity:

Position

Terminal e

b 6Disconnect the engine ECM coupler f
Wiring harness continuity: Terminal 1Terminal 26 Terminal 2Terminal 10 10Connect the engine ECM coupler b11Connect the thermo sensor coupler a

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