Suzuki DT-140 Throttle Valve sencor set up 1989 K model

[GRIZZLY EN2]

I have a problem setting up my new t.v.s. In my book it shows a three wire sensor my engine has a 2 wire so is the new one and the test wire from suz.problem book diaigram shows three wire callibrations . does anyone know how to set up two wire T.V.S. Thanks Grizzly EN2