2007 Yamaha Apex Factory Service Manual, Page 621Get this manual

2007 Yamaha Apex Factory Service Manual, Page 621

THROTTLE BODIES fWhile slowly opening the throttle, check that the throttle position sensor resistance is within the specified
at 20C (68F) (yellow blackblue) 2Adjust: throttle position sensor angle aConnect the throttle position sensor coupler to
the wire harnessbConnect the digital circuit tester to the throttle position sensorTester positive probe yellow terminal
Tester negative probe blue terminal Digital circuit tester 90890-03174 cMeasure the throttle position sensor voltagedAdjust
the throttle position sensor angle so the measured voltage is within the specified rangeThrottle position sensor voltage