Yamaha Yzf R1 2007 Manual
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Page 331
CHARGING SYSTEM 8-12 2. AC magneto 3. Rectifier/regulator 4. Main fuse 8. Battery 88.Ground 89.Battery negative lead
Page 332
CHARGING SYSTEM 8-13 EAS27230 TROUBLESHOOTING The battery is not being charged. NOTE: Before troubleshooting, remove the following part(s): 1Rider seat 2 Fuel tank 3 Air filter case NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ 1 Check the fuse. (Main) Refer to CHECKING THE FUSES on page 8-85.Replace the fuse. 2 Check the battery. Refer to CHECKING AND CHARGING THE BATTERY on page 8-85. Clean the battery terminals. Recharge or replace the battery. 3 Check the stator coil Refer to CHECKING THE STATOR...
Page 333
CHARGING SYSTEM 8-14
Page 334
LIGHTING SYSTEM 8-15 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM
Page 335
LIGHTING SYSTEM 8-16 1. Main switch 4. Main fuse 8. Battery 19.ECU (engine control unit) 51.High beam indicator light 54.Meter light 62.Dimmer switch 71.Headlight 72.Auxiliary light 74.License plate light 76.Tail/brake light 77.Headlight relay (on/off) 78.Headlight relay (dimmer) 81.Headlight fuse 88.Ground 89.Battery negative lead
Page 336
LIGHTING SYSTEM 8-17 EAS27260 TROUBLESHOOTING Any of the following fail to light: headlight, high beam indicator light, taillight, license light or meter light. NOTE: Before troubleshooting, remove the following part(s): 1Rider seat 2 Fuel tank 3 Side cowlings NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ 1 Check the each bulbs and bulb sockets condition. Refer to CHECKING THE BULBS AND BULB SOCKETS on page 8- 84.Replace the bulb(s) and bulb socket(s). 2 Check the fuses. (Main, headlight...
Page 337
LIGHTING SYSTEM 8-18 NG→ OK↓ NG→ OK↓ 8 Check the headlight relay (dimmer). Refer to CHECKING THE RELAYS on page 8-88.Replace the headlight relay. 9 Check the entire lighting system’s wiring. Refer to LIGHTING SYSTEM on page 8-15.Properly connect or repair the lighting system’s wiring. This circuit is OK.
Page 338
SIGNALING SYSTEM 8-19 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM
Page 339
SIGNALING SYSTEM 8-20 1. Main switch 4. Main fuse 8. Battery 9. Fuel injection system fuse 12.Starting circuit cut-off relay 13.Neutral switch 15.Fuel pump 19.ECU (engine control unit) 33.Speed sensor 43.Fuel level warning light 44.Oil level warning light 45.Neutral indicator light 46.Tacho meter 47.Shift timing indicator light 48.Multi-function meter 50.Coolant temperature indicator light 52.Left turn signal indicator light 53.Right turn signal indicator light 57.Front brake light switch 60.Turn signal...
Page 340
SIGNALING SYSTEM 8-21 EAS27290 TROUBLESHOOTING Any of the following fail to light: turn signal light, brake light or an indicator light. The horn fails to sound. NOTE: Before troubleshooting, remove the following part(s): 1Rider seat 2 Passenger seat 3 Fuel tank 4Side cowling NG→ OK↓ NG→ OK↓ NG→ OK↓ NG→ OK↓ Check the signaling system The horn fails to sound. NG→ OK↓ NG→ OK↓ 1 Check the fuses. (Main, fuel injection system, head- light, Turn signal light, signal) Refer to CHECKING THE FUSES on page...