Yamaha YZF-R1P Service Manual

Contents

8 - 15– +ELECELECTRIC STARTING SYSTEMEAS00757TROUBLESHOOTINGCheck:1. main and ignition fuses2. battery3. starter motor4. starting circuit cut-off relay5. starter relay6. main switch7. engine stop switch8. neutral switch9. sidestand switch10.clutch switch11.start switch12.wiring connections(of the entire starting system)NOTE:_• Before troubleshooting, remove the followingpart(s):1. seat2. fuel tank3. left side cowling• Troubleshoot with the following specialtool(s).EAS00738EAS00739EAS00758The starter motor fails to turn.Pocket testerYM-031121. Main and ignition fuses• Check the main and ignition fuses for con-tinuity.Refer to “CHECKING THE FUSES” inchapter 3.• Are the main and ignition fuses OK?YES NOReplace the fuse(s).2. Battery• Check the condition of the battery.Refer to “CHECKING AND CHARGINGTHE BATTERY” in chapter 3.Minimum open-circuit voltage12.8 V or more at 20 °C (68 °F)• Is the battery OK?YES NO• Clean the batteryterminals.• Recharge orreplace the bat-tery.3. Starter motor• Connect the positive battery terminal 1and starter motor lead 2 with a jumperlead 3.WARNING_• A wire that is used as a jumper leadmust have at least the same capacity ormore as that of the battery lead, other-wise the jumper lead may burn.• This check is likely to produce sparks,therefore make sure nothing flammableis in the vicinity.• Does the starter motor turn?YES NORepair or replace thestarter motor.