Yamaha YZF-R1(B) 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

ELECTRICAL COMPONENTS8-143▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Connect the pocket tester (Ω × 100) to thecoolant temperature sensor as shown.b. Immerse the coolant temperature sensor“1” in a container filled with coolant “2”.TIPMake sure the coolant temperature sensor ter-minals do not get wet.c. Place a thermometer “3” in the coolant.d. Slowly heat the coolant, then let it cooldown to the specified temperature.e. Measure the coolant temperature sensorresistance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS14B1086CHECKING THE THROTTLE POSITIONSENSOR1. Remove:• Throttle position sensor(from the throttle body)2. Check:• Throttle position sensor maximum resis-tanceOut of specification → Replace the throt-tle position sensor.▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Connect the pocket tester (Ω × 1 k) to thethrottle position sensor terminal as shown.b. Measure the throttle position sensor maxi-mum resistance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲3. Install:• Throttle position sensorTIPWhen installing the throttle position sensor,adjust its angle properly. Refer to “ADJUST-ING THE THROTTLE POSITION SENSOR”on page 7-19.EAS14B1087CHECKING THE ACCELERATOR POSITIONSENSOR1. Remove:• Accelerator position sensor(from the throttle body)2. Check:• Accelerator position sensor maximumresistanceOut of specification → Replace the accel-erator position sensor.Pocket tester90890-03112Analog pocket testerYU-03112-CThrottle position sensor resis-tance1.2–2.8 kΩPocket tester90890-03112Analog pocket testerYU-03112-C• Positive tester probeBlue “1”• Negative tester probeBlack/Blue “2”Accelerator position sensorresistance1.2–2.8 kΩ