2009 Yamaha F40 Outboard Service Manual, Page 117Get this manual
Fuel control units and componentsCharging units and components Lighting coil output peak voltage: Green (G)Green (G) Unloaded rmin Cranking 1500 DC 14.0 45.0 2 149
3500 102.0
To prevent the engine from starting when cranking it, make sure to remove the clip from the engine shut-off switch3Measure the lighting coil resistanceLighting coil resistance (reference data): 0.5610.759 at 20 (68 F) 4Disconnect the test harness a, and then connect the Rectifier Regulator coupler a
Wiring harness continuity: Terminal 1Terminal 49 Terminal 2Terminal 10Install the vapor shut-off valve, and then connect the vapor shut-off valve coupler a11Connect the engine ECM coupler and the main relay coupler b