2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 216Get this manual
1H-7 Ignition System:
Ignition Coil Operating Signal Inspection
Z9J0111806009
CKP Sensor Inspection
Special tool (A): 0993088730 (36-pin test cord set)Stevens peak reading voltmeter CD-77 Tester knob indication SEN 50 1) Disconnect all injector connectors from the fuel injectors2) Connect the test cord between the ECM and the wire harness as shown in figure then turn ignition switch ON3) Connect the tester probe Red (+) to each terminal, one at time to test each circuitWire color (engine Terminal harness) No.1 Ignition coil 42 No.2 Ignition coil 54 Bl No.3 Ignition coil 41 GrY No.4 Ignition coil 53 LgR 4) Connect the tester probe Black () to No51 terminal (or to body ground)5) Crank the engine and measure the voltageIf out of specification, inspect the related partsRefer to "Ignition System Symptom Diagnosis" (Page 1H-4) and "Ignition System Troubleshooting" (Page 1H-5)Ignition coil operating signal Standard: Approx5 V(A)