Yamaha YZF-R1(B) 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

ELECTRICAL COMPONENTS8-144▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Connect the pocket tester (Ω × 1 k) to theaccelerator position sensor terminal asshown.b. Measure the accelerator position sensormaximum resistance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲3. Install:• Accelerator position sensorTIPWhen installing the accelerator position sen-sor, adjust its angle properly. Refer to“ADJUSTING THE ACCELERATOR POSI-TION SENSOR” on page 7-19.EAS14B1061CHECKING THE THROTTLE SERVOMOTOR1. Remove:• Air filter caseRefer to “AIR FILTER CASE” on page 7-5.2. Check:• Throttle servo motor resistanceOut of specification → Replace the throt-tle body assembly.▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Disconnect the throttle servo motor couplerfrom wire harness.b. Connect the digital circuit tester to thethrottle servo motor coupler.c. Measure the throttle servo motor resis-tance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS28370CHECKING THE AIR INDUCTION SYSTEMSOLENOID1. Check:• Air induction system solenoid resistanceOut of specification → Replace.▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Disconnect the air induction system sole-noid coupler from the air induction systemsolenoid.b. Connect the pocket tester (Ω × 1) to the airinduction system solenoid terminal asshown.Pocket tester90890-03112Analog pocket testerYU-03112-C• Positive tester probeBlue “1”• Negative tester probeBlack/Blue “2”Throttle servo motor resistance1.23–1.67 ΩDigital circuit tester90890-03174Model 88 Multimeter withtachometerYU-A1927• Positive tester probeYellow/Red “1”• Negative tester probeLight green/Red “2”Solenoid resistance18–22 Ω at 20 °C (68 °F)Pocket tester90890-03112Analog pocket testerYU-03112-C