Suzuki outboard motors 1988 2003 repair manual., Page 102Get this manual
4-40 FUEL SYSTEM DESCRIPTIONOPERATION
See Figure 75
The throttle valve sensor (TVS) is located on the top of the throttle body and is connected to the upper end of the throttle valve shaftAs the throttle valve shaft turns, the sensor resistance changesthe resistance change of the voltage returning to the ECU is measure of the throttle valve opening angleThe throttle valve opening angle signal serves as one of the signals for determining ignition timing and fuel injection duration time (fuel injection amount) in the ECUvalve
05004G4A
Fig76 Connect the tester positive probe to the white lead of the test cord and the negative lead to the yellow lead
2Slowlv move the throttle lever to the ooen nosition, then check to see if the resistance changes linearly within the specifications according to the TVS shaft turning angle: TVS resistance: 0-6 kilo ohms (linear change)
-The above resistance range specification is minimum maximum reference only for an uninstalled TVSWhen the TVS is installed on the throttle body, the actual resistance may be shown as narrower range than the above specificationIf the resistance changes suddenly at any point, the TVS must be replaced1Throttle valve sensor 2Throttle valve 3Throttle stop screw
05004G40
DT150 AND DT200
See Figure 77