Yamaha YZF-R1 2007 Service Manual

ELECTRIC STARTING SYSTEM8-9EAS27190TROUBLESHOOTINGThe starter motor fails to turn.NOTE:• Before troubleshooting, remove the following part(s):1 Rider seat2 Passenger seat3 Fuel tank4 Air filter caseNG→OK↓NG→OK↓NG→OK↓NG→OK↓NG→OK↓NG→OK↓NG→OK↓1 Check the fuses.(Main and ignition)Refer to "CHECKING THE FUSES"on page 8-89.Replace the fuse(s).2 Check the battery.Refer to "CHECKING ANDCHARGING THE BATTERY" onpage 8-89.• Clean the battery terminals.• Recharge or replace the battery.3 Check the starter motor operation.Refer to "CHECKING THESTARTER MOTOR OPERATION"on page 8-97.Repair or replace the starter motor.4 Check the starter motor.Refer to "CHECKING THESTARTER MOTOR" on page 5-41.Repair or replace the starter motor.5 Check the starting circuit cut-offrelay.Refer to "CHECKING THERELAYS" on page 8-92.Replace the starting circuit cut-offrelay.6 Check the starter relay.Refer to "CHECKING THERELAYS" on page 8-92.Replace the starter relay.7 Check the main switch.Refer to "CHECKING THESWITCHES" on page 8-85.Replace the main switch/immobilizerassembly.Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk