AIR INDUCTION SYSTEM
7-18
EAS27060
CHECKING THE AIR INDUCTION SYSTEM
Air injection
The air induction system burns unburned
exhaust gases by injecting fresh air (second-
ary air) into the exhaust port, reducing the
emission of hydrocarbons. When there is neg-
ative pressure at the exhaust port, the reed
valve opens, allowing secondary air to flow into
the exhaust port. The required temperature for
burning the unburned exhaust gases is
approximately 600 to 700
°
C (1112 to 1292
°
F).
Air cut-off valve
The air cut-off valve is controlled by the signals
from the ECU in accordance with the combus-
tion conditions. Ordinarily, the air cut-off valve
opens to allow the air to flow during idle and
closes to cut-off the flow when the vehicle is
being driven. However, if the coolant tempera-
ture is below the specified value, the air cut-off
valve remains open and allows the air to flow
into the exhaust pipe until the temperature
becomes higher than the specified value.
1. Check:
• Hoses
Loose connections
→
Connect properly.
Cracks/damage
→
Replace.
2. Check:
• Reed valve
• Reed valve stopper
• Reed valve seat
Cracks/damage
→
Replace the reed
valve assembly.
3. Measure:
• Reed valve bending limit “a”
Out of specification
→
Replace the reed
valve assembly.
4. Check:
• Air cut-off valve
Cracks/damage
→
Replace.
5. Check
• Air induction system solenoid
Refer to “CHECKING THE AIR INDUC-
TION SYSTEM SOLENOID” on page 8-
200.
EAS39P1712
INSTALLING THE AIR INDUCTION SYSTEM
1. Install:
• Reed valve plate
TIP
Align the projection “a” on the cylinder head
cover “1” with the hole “b” in the reed valve
plate.
A. From the air filter case
B. To the cylinder head
Reed valve bending limit
0.4 mm (0.016 in)
Summary of Contents for Fazer FZ8-SA
Page 1: ...SERVICE MANUAL FZ8NA FZ8SA 2011 1BD 28197 E0 ...
Page 6: ......
Page 8: ......
Page 33: ...FEATURES 1 24 ...
Page 48: ...SPECIAL TOOLS 1 39 ...
Page 67: ...TIGHTENING TORQUES 2 18 ...
Page 75: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 26 ...
Page 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 EAS20410 LUBRICATION DIAGRAMS ...
Page 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 2 3 4 5 6 7 8 1 ...
Page 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Page 84: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 ...
Page 85: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Oil pipe 3 Drive axle ...
Page 86: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 ...
Page 88: ...COOLING SYSTEM DIAGRAMS 2 39 EAS20420 COOLING SYSTEM DIAGRAMS ...
Page 89: ...COOLING SYSTEM DIAGRAMS 2 40 1 Thermostat 2 Water pump 3 Radiator 4 Radiator fan 5 Oil cooler ...
Page 90: ...COOLING SYSTEM DIAGRAMS 2 41 ...
Page 91: ...COOLING SYSTEM DIAGRAMS 2 42 1 Radiator cap 2 Radiator 3 Oil cooler 4 Thermostat ...
Page 92: ...CABLE ROUTING 2 43 EAS20430 CABLE ROUTING Handlebar front view FZ8NA ...
Page 94: ...CABLE ROUTING 2 45 Handlebar front view FZ8SA ...
Page 96: ...CABLE ROUTING 2 47 Handlebar right side view ...
Page 98: ...CABLE ROUTING 2 49 Engine right side view ...
Page 100: ...CABLE ROUTING 2 51 Handlebar left side view ...
Page 102: ...CABLE ROUTING 2 53 Engine left side view ...
Page 104: ...CABLE ROUTING 2 55 Rear frame left side view ...
Page 106: ...CABLE ROUTING 2 57 Frame top view ...
Page 108: ...CABLE ROUTING 2 59 Frame top view ...
Page 110: ...CABLE ROUTING 2 61 Frame top view ...
Page 112: ...CABLE ROUTING 2 63 Fuel tank left and bottom view ...
Page 114: ...CABLE ROUTING 2 65 Front brake right side view ...
Page 116: ...CABLE ROUTING 2 67 Front brake left side ...
Page 118: ...CABLE ROUTING 2 69 Rear brake ...
Page 120: ...CABLE ROUTING 2 71 Hydraulic unit top view ...
Page 122: ...CABLE ROUTING 2 73 Hydraulic unit front view ...
Page 124: ...CABLE ROUTING 2 75 Hydraulic unit left side view ...
Page 126: ...CABLE ROUTING 2 77 ...
Page 129: ......
Page 164: ...PERIODIC MAINTENANCE 3 35 ...
Page 262: ...CHAIN DRIVE 4 95 ...
Page 358: ...TRANSMISSION 5 93 ...
Page 387: ...THROTTLE BODIES 7 14 ...
Page 388: ...AIR INDUCTION SYSTEM 7 15 EAS27040 AIR INDUCTION SYSTEM ...
Page 395: ......
Page 396: ...IGNITION SYSTEM 8 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Page 398: ...IGNITION SYSTEM 8 3 ...
Page 405: ...IGNITION SYSTEM 8 10 ...
Page 406: ...ELECTRIC STARTING SYSTEM 8 11 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 408: ...ELECTRIC STARTING SYSTEM 8 13 ...
Page 414: ...CHARGING SYSTEM 8 19 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 416: ...CHARGING SYSTEM 8 21 ...
Page 419: ...CHARGING SYSTEM 8 24 ...
Page 420: ...LIGHTING SYSTEM 8 25 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Page 422: ...LIGHTING SYSTEM 8 27 ...
Page 426: ...SIGNALING SYSTEM 8 31 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 428: ...SIGNALING SYSTEM 8 33 ...
Page 435: ...SIGNALING SYSTEM 8 40 ...
Page 436: ...COOLING SYSTEM 8 41 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ...
Page 438: ...COOLING SYSTEM 8 43 ...
Page 442: ...FUEL INJECTION SYSTEM 8 47 EAS27331 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Page 444: ...FUEL INJECTION SYSTEM 8 49 ...
Page 504: ...FUEL PUMP SYSTEM 8 109 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Page 506: ...FUEL PUMP SYSTEM 8 111 ...
Page 510: ...IMMOBILIZER SYSTEM 8 115 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Page 512: ...IMMOBILIZER SYSTEM 8 117 ...
Page 521: ...IMMOBILIZER SYSTEM 8 126 ...
Page 522: ...ABS ANTI LOCK BRAKE SYSTEM 8 127 EAS28790 ABS ANTI LOCK BRAKE SYSTEM EAS27730 CIRCUIT DIAGRAM ...
Page 524: ...ABS ANTI LOCK BRAKE SYSTEM 8 129 ...
Page 526: ...ABS ANTI LOCK BRAKE SYSTEM 8 131 EAS27740 ABS COMPONENTS CHART ...
Page 528: ...ABS ANTI LOCK BRAKE SYSTEM 8 133 EAS27750 ABS COUPLER LOCATION CHART ...
Page 532: ...ABS ANTI LOCK BRAKE SYSTEM 8 137 EAS27810 BASIC PROCESS FOR TROUBLESHOOTING ...
Page 570: ...ELECTRICAL COMPONENTS 8 175 EAS27973 ELECTRICAL COMPONENTS ...
Page 572: ...ELECTRICAL COMPONENTS 8 177 ...
Page 574: ...ELECTRICAL COMPONENTS 8 179 EAS27981 CHECKING THE SWITCHES ...
Page 576: ...ELECTRICAL COMPONENTS 8 181 ...
Page 598: ...ELECTRICAL COMPONENTS 8 203 ...
Page 606: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...