1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 115Get this manual
4-9 ELECTRICAL NEUTRAL SWITCH Check for continuityinfinity of the neutral switch09930-99320Digital tester Tester range(Continuity) REVERSE FORWARD
Neutral switch in remo-con box 1Disconnect neutral switch lead wire from ignition switch and remo-con box wiring lead2Check continuityinfinity between switch brown wire leads while operating remo-con handleShift position Neutral Forward Reverse Tester indicates Continuity Infinity Infinity