Honda BF35A-BF45A Outboard Motors Shop Manual., Page 289Get this manual
From page 2-7 6Disconnect the pulse generator coil wire connector, and check for resistanceResistance: 288 352 Q
Abnormal
Replace the pulse generator coil
7Check for voltage leakage caused by damaged high tension wire insulationCheck the ignition coil resistances (see base shop manual)Resistance: Primary: 0.19 0.23 C2 Secondary: 2.8 3.4 kQ
Abnormal
Replace the ignition coil