Yamaha Fz6 N Service Manual
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LIGHTING SYSTEM 8-18 NG→ OK ↓ 8. Check the entire lighting system’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the lighting system’s wiring. This circuit is OK.
SIGNALING SYSTEM 8-19 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ChB P G/L Y/L R/GLgB/W G/L Y/L R/G G/R G/RLgB/W R/B R/LG/BR/LG/BR/LG/B R/B R/L G/B R/B23R/L R/L R/LR/BR/L24 25 26 27 R/WBr/RR/W Br/R 15L Y B/L D G/W G/WD Br/W Br/W D P/W P/W D B/L B/L B/LBr/W LB/LP/W 16 2021 B/LG/WB/L B/L L A B/W A Y/L D YY C LL C R/L C G/B C R/B B/L 22 R/L B/L G/WBr/WYP/WB/L G/WBr/WYP/WB/L 18 L L P/W P/W R/B R/L G/B L B/Y B/LY/GL B/R Y/B W/Y B/L B/L L G/Y R/B R/L G/B L B/L35 3637 37 Y/L 19Gy B Gy B/L R/B 17B B L W R/W P/BGy/GB/L R/B Y/L R/L Y/G Y/G L/Y R/W Gy Gy Y Y Br/W Br/W G/W G/W R/WL/R B/YBB/GG/WW Ch Dg B BBr/R R/B R/B G/B G/B L/W P/B P/B Gy/G Gy/G O/B O/B Gy/B Gy/B B/W R/W B/W YW/YG/WGy/GB/LB/RB/YL/Y Y/LP/B Y/RBG/Y R/BGy/B Br/W Y/GP/WLB/W R/WR/LL/WGyBr/RBY/BG/BO/B Ch38 39 40 42 44 45 46 47 48 49 50 50 43 41R/Y LgY/LWG/W R/WR/G G/R Ch DgB/WR/YYG/L B L/R B W W B R/W R/W B G/W G/W A L/RBL/RB B R/GR/G B/W Y/L B B/GB B/Y B Dg A G/L G/L A Dg B Ch B Lg Lg B/Y 51 B/Y 62 65 OFF RUN 77 FREE PUSH R/Y 67 B B B 7 R R/W210G/YL/W R/WR/BB Br G/YW/L R/WR/BBBr R R/WL/W 9 78R R/W2 L/G L/G R/W R/W 69 B Br/L 64 Y L B HI LO W/L W/L Y/B Br BrOFF ON 8 L N R 63 YL BL L/W Br/L 61 Br/W Br/L Br/L OFF ON ON Y Y B Dg Y L/B Br/WR/Y Ch L/Y G BB/YBrR/YGY/B R/Y R/Y Dg Y L/BBr/WR/Y ChB/RBB/YBr 13 B BBrYBr G/Y 5B R R L/W L/W R/B B84B/Y B/Y 12B BL/GB 71 72 73 74 75 76 70 B/R B/R11 R/Y R/Y66 Ch B 85 R28 Br R/W2 Y Y L/BDg B Br/WBr/G Br/GBr/GBr/W Br/WCh Ch Dg Dg Ch Dg BG/W R/W B R/L G G B B L/YB/Y Dg B W Br B R/W Sb Sb R/L R/L 52 68 L/R R/L W/L R/B L/W R Lg B/Y Sb B/R L/GR/WL/YL/W Br/R WB R/B L/Y SbSb R/W AG/R G/R B 14 BL W W G/W G/W G/L Lg Lg 82Ch B Ch B 80 79 81 79 83 B B B B L/R Dg B Dg B L/R BB BB B/Y B B/G B BB/G B/Y Dg Ch B R R R Br/BBr/B 2W W W WW W 4R WW WW WW 53 54 56 55 57R Br/LBB1 58 R/G BB3 BB4 BB BB Br/L BB BB B2 B1 Br/BLG/Y R/W BB B2 BB2 BB3 BB1 BB4Br/RB 59 R/W 3 B L B L L L B G/Y R/W R Br/L B B B B/W BBB R/GY/LG/L R/W R B W W W B 6 BB2 B2Y/L B B2R/GY/LLgR/WBr/RBr/R ON OFF1 60 G/L R/G R/G R/WL/RYBG-G/WWChDg B/L WIRE SUB LEAD2D MAIN HARNESS WIRE SUB LEAD1 C MAIN HARNESS CORD HEAD LIGHT2 B MAIN HARNESS CORD HEAD LIGHT1A MAIN HARNESS OFF 30 Br/W W/R W/R 29 W/Y Sb B LgW/RSb B LgWRSb SbB 31 Br/WG/WW/BB B1 Lg W/Y W/R Y/W L Lg Lg Br B/W B/W B R/Y G/W Y R/W B1 L W/B W/B R R R W/L W/L GG L L B1 B1 Y/W Y/W B B R/W3 R/W3 R/YW/LGB/WR/W WL/WB/WSb Y 33 BrR/W3W/BR 32BY/W L/W 34GL GL BR/W R RW/LG BR/W3 W
SIGNALING SYSTEM 8-20 1. Main switch 7. Main fuse 10.Battery 11.Starting circuit cut-off relay 13.Neutral switch 14.Fuel pump 22.ECU (engine control unit) 30.ABS ECU 32.Rear wheel sensor 40.Fuel level warning light 41.Oil level warning light 42.Neutral indicator light 43.Tachometer 44.Multi-function meter 46.Coolant temperature warning light 48.Left turn signal indicator light 49.Right turn signal indicator light 50.Meter light 52.Oil level switch 55.Front brake light switch 62.Signal fuse 64.Ignition fuse 65.Tail fuse 66.Turn signal relay 67.Rear brake light switch 69.Tail/brake light 74.Hazard switch 75.Turn signal switch 76.Horn switch 77.Horn 82.Front left turn signal light 83.Front right turn signal light 84.Rear left turn signal light 85.Rear right turn signal light
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): 1.Seat 2.Front cowling inner panel 3.Fuel tank 4.Side coverNG→ 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, ignition, signaling and tail) Refer to CHECKING THE FUSES on page 8-113. Replace the fuse(s). 2. Check the battery. Refer to CHECKING AND CHARGING THE BATTERY on page 8-114. Clean the battery terminals. Recharge or replace the battery. 3. Check the main switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the main switch. 4. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the horn switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the left handlebar switch. 2. Check the horn. Refer to CHECKING THE HORN on page 8-125. Replace the horn.
SIGNALING SYSTEM 8-22 NG→ OK ↓ The tail/brake light fails to come on. NG → OK ↓ NG→ OK ↓ NG→ OK ↓ NG→ OK ↓ The turn signal light, turn signal indicator light or both fail to blink. NG → OK ↓ NG→ OK ↓ 3. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the tail/brake light bulb and socket. Refer to CHECKING THE BULBS AND BULB SOCKETS on page 8-112. Replace the tail/brake light bulb, socket or both. 2. Check the front brake light switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the front brake light switch. 3. Check the rear brake light switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the rear brake light switch. 4. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the turn signal indicator light bulb and socket. Refer to CHECKING THE LEDS on page 8-113. Replace the turn signal indicator light bulb, socket or both. 2. Check the turn signal switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the left handlebar switch.
SIGNALING SYSTEM 8-23 NG→ OK ↓ NG→ OK ↓ NG→ OK ↓ The neutral indicator light fails to come. NG → OK ↓ NG→ OK ↓ NG→ OK ↓ 3. Check the hazard switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the left handlebar switch. 4. Check the turn signal/hazard relay. Refer to CHECKING THE RELAYS on page 8-117. The turn signal relay is faulty and must be replaced. 5. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the neutral indicator light bulb and socket. Refer to CHECKING THE LEDS on page 8-113. Replace the neutral indicator light bulb, socket or both. 2. Check the neutral switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the neutral switch. 3. Check the starting circuit cut-off relay. Refer to CHECKING THE RELAYS on page 8-117. Replace the starting circuit cut-off relay.
SIGNALING SYSTEM 8-24 NG→ OK ↓ The oil level warning light fails to come. NG → OK ↓ NG→ OK ↓ NG→ OK ↓ The fuel level warning light fails to come. NG → OK ↓ NG→ OK ↓ 4. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the oil level warning light bulb and socket. Refer to CHECKING THE LEDS on page 8-113. Replace the oil level warning light bulb, socket or both. 2. Check the oil level switch. Refer to CHECKING THE SWITCHES on page 8-109. Replace the oil level switch. 3. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the fuel level warning light bulb and socket. Refer to CHECKING THE LEDS on page 8-113. Replace the fuel level warning light bulb, socket or both. 2. Check the fuel sender. Refer to CHECKING THE FUEL SENDER on page 8-126. Replace the fuel pump assembly.
SIGNALING SYSTEM 8-25 NG→ OK ↓ The speedometer fails to operate. NG → OK ↓ NG→ OK ↓ NOTE: Repair or replace if there is an open or short circuit. Between rear wheel se nsor and ABS ECU coupler. (yellow/white-yellow/white) (black-black) Between ABS ECU coupler and ECU coupler. (white/yellow-white/yellow) Between ECU coupler and meter assembly. (yellow/blue-yellow/blue) 3. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. This circuit is OK. 1. Check the speed sensor. Refer to CHECKING THE SPEED SENSOR on page 8-126. Replace the speed sensor. 2. Check the entire signaling sys- tem’s wiring. Refer to CIRCUIT DIAGRAM on page 8-1. Properly connect or repair the signal- ing system’s wiring. Replace the meter assembly.
COOLING SYSTEM 8-27 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ChB P G/L Y/L R/GLgB/W G/L Y/L R/GLgB/W R/B R/LG/BR/LG/BR/LG/B R/B R/L G/B R/B23R/L R/L R/LR/BR/L24 25 26 27 R/WBr/RR/W Br/R 15L Y B/L D G/W G/WD Br/W Br/W D P/W P/W D B/L B/L B/LBr/W LB/LP/W 16 2021 B/LG/WB/L B/L L A B/W A Y/L D YY C LL C R/L C G/B C R/B B/L 22 R/L B/L G/WBr/WYP/WB/L G/WBr/WYP/WB/L 18 L L P/W P/W R/B R/L G/B L B/Y B/LY/GL B/R Y/B B/L W/Y W/Y B/L B/L L G/Y R/B R/L G/B L B/L W/Y L B/L 29 30 31 31 Y/L 19Gy B Gy B/L 28 R/B 17B B L W R/W P/BGy/GB/L R/B W L/Y B/L Y/L R/L Y/G Y/G L/Y R/W Gy Gy Y Y Br/W Br/W G/W G/W R/WL/R B/YBB/GG/WW Ch Dg B BBr/R R/B R/B G/B G/B L/W P/B P/B Gy/G Gy/G L O/B O/B Gy/B Gy/B B/W R/W B/W YW/YG/WGy/GB/LB/RB/YL/Y Y/LP/BBG/Y R/BGy/B Br/W Y/GP/WLB/W R/WR/LL/WGyBr/RBY/BG/BO/B Ch32 33 34 36 37 37 38 39 40 35 B L/R B W W B R/W R/W B G/W G/W A L/RBL/RB B R/GR/G B/W Y/L B B/GB B/Y B DgAG/LG/L A Dg B Ch B Lg Lg B/Y 50 53 OFF RUN 65 FREE PUSH R/Y 55 B B 7 BB10G/YL/W R/WR/BB Br G/YW/L R/WR/BBBr R R/WL/W 9 66R L/G L/G R/W R/W 57 B Br/L 52 Y L B HI LO W/L W/L Y/B Br BrOFF ON 8 L N R 51 YL BL L/W Br/L Br/L OFFON ON Y Y B Dg Y L/B Br/WR/Y Ch L/Y G BB/YBrR/YGY/B R/Y R/Y Dg Y L/BBr/WR/Y ChB/RBB/YBr 13 B BBrYBr G/Y 5B R R L/W L/W R/B B72B/Y B/Y 12B BL/GB 59 60 61 62 63 64 58 B/R B/R11 R/Y R/Y54 Ch B 73 R Y Y L/BDg B Br/WBr/G Br/GBr/GBr/W Br/WCh Ch Dg Dg Ch Dg BG/W R/W B R/L G G B B L/YB/Y Dg B W Br B R/W Sb Sb R/L R/L 41 56 L/R R/L W/L R/B L/W R Lg B/Y Sb B/R L/GR/WL/YL/W Br/R WB R/B L/Y SbSb R/W B 14 BL W W G/W G/W G/L Lg Lg 70Ch B Ch B 68 67 69 67 71 B B B B L/R Dg B Dg B L/R BB BB B/Y B B/G B BB/G B/Y Dg Ch B R R R Br/BBr/B 2W W W WW W 4R WW WW WW 42 43 45 44 46R Br/LBB1 47 R/G BB3 BB4 BB BB Br/L BB BB B2 B1 Br/BLG/Y R/W BB B2 BB2 BB3 BB1 BB4Br/RB 48 R/W 3 B L B L L L B G/Y R/W R Br/L BBB R/GY/LG/L R/W R B W W W B 6 BB2 B2Y/L B B2R/GY/LLgR/WBr/RBr/R ON OFF1 49 G/L R/G R/G R/WL/RYBG-G/WWChDg B/L WIRE SUB LEAD2D MAIN HARNESS WIRE SUB LEAD1 C MAIN HARNESS CORD HEAD LIGHT2 B MAIN HARNESS CORD HEAD LIGHT1A MAIN HARNESS OFF Lg WB/WG/WY/L Dg G/L R/WChR/GB/Y Lg W B/WG/WY/L Dg G/LR/WChR/GY