1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 113Get this manual
4-7 ELECTRICAL
TROUBLESHOOTING
NOTE: Before troubleshooting the electric starter system, make sure of the followingBattery is fully charged All cableswires are securely connected Shift is in "NEUTRAL" positionCircuit check schematic
Starter motor relay
Sub cable
30A Fuse
Starter motor
Battery GND
Neutral switch
GND Neutral switch
Ignition switch
Starter motor will not run
Measure voltage at terminal1It must be above 12VIs result OK?
Battery cable failure