1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 164Get this manual
I I0 I ELEC
INDICATION SYSTEM
Speed sensor 1Check: Speed sensor output voltage and pulses Out of specification -7 ReplaceSpeed sensor output voltage (dependant on the paddlewheel position): Less than 400 mV11_6 -12 Output pulse: pulsesone-full turn Checking steps: Apply DC voltage (12 V) to the white three-pin connector (between the redl white and black leads) Rotate the paddlewheel by hand and measure the voltage between the black and yellow leadsNOTE: As the paddlewheel is rotated, squarewave voltage signal is produced11.612 V