AIR INDUCTION SYSTEM
7-15
EAS27050
CHECKING THE PRESSURE REGULATOR
1. Check:
• Pressure regulator
Damage
→
Replace.
EAS27060
CHECKING THE AIR INDUCTION SYSTEM
Air injection
The air induction system burns unburned ex-
haust gases by injecting fresh air (secondary air)
into the exhaust port, reducing the emission of
hydrocarbons. When there is negative pressure
at the exhaust port, the reed valve opens, allow-
ing secondary air to flow into the exhaust port.
The required temperature for burning the un-
burned 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 be-
ing driven. However, if the coolant temperature
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.
• Pipes
Cracks/damage
→
Replace.
2. Check:
• Reed valve
• Reed valve stopper
• Reed valve seat
Cracks/damage
→
Replace the reed valve.
3. Check:
• Air cut-off valve
Cracks/damage
→
Replace.
4. Check:
• Air induction system solenoid
Refer to “CHECKING THE AIR INDUCTION
SYSTEM SOLENOID” on page 8-232.
EAS27070
INSTALLING THE AIR INDUCTION SYSTEM
1. Install:
• Reed valve plate “1”
NOTE:
Align the notch “a” in each plate with the projec-
tion “b” of each reed valve seat on the cylinder
head cover.
A. From the air filter case
B. To the reed valve
A
B
B
a
b
1
Summary of Contents for FJR13AEV(C)
Page 1: ...SERVICE MANUAL FJR13AV C FJR13AEV C LIT 11616 19 83 3P6 28197 10 ...
Page 6: ......
Page 8: ......
Page 79: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 30 ...
Page 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 EAS20410 LUBRICATION DIAGRAMS 5 6 7 1 2 3 4 ...
Page 84: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 1 3 2 ...
Page 85: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Drive axle 3 Oil delivery pipe 1 ...
Page 86: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 6 5 4 3 2 1 ...
Page 88: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 1 2 3 4 5 6 7 8 9 ...
Page 90: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 4 5 3 2 1 9 8 6 7 ...
Page 94: ...COOLING SYSTEM DIAGRAMS 2 45 A A 7 1 2 3 4 5 5 7 8 6 8 9 10 11 12 ...
Page 100: ...CABLE ROUTING FJR13A 2 51 A B C D E 1 1 2 3 4 5 6 7 8 9 11 10 12 ...
Page 102: ...CABLE ROUTING FJR13A 2 53 A B C D 1 2 3 4 6 5 7 8 9 10 11 12 ...
Page 110: ...CABLE ROUTING FJR13A 2 61 D A B B C E 1 2 3 4 ...
Page 120: ...CABLE ROUTING FJR13AE 2 71 B C 1 A D E G 1 2 3 4 5 6 7 8 9 14 13 10 11 12 15 F ...
Page 122: ...CABLE ROUTING FJR13AE 2 73 A B C D E 1 2 3 4 6 5 8 7 9 11 10 12 13 ...
Page 130: ...CABLE ROUTING FJR13AE 2 81 D B C A E E F I 3 4 5 2 1 6 H G ...
Page 136: ...CABLE ROUTING FJR13AE 2 87 ...
Page 139: ......
Page 198: ...GENERAL CHASSIS 4 11 b a 1 2 ...
Page 298: ...SHAFT DRIVE 4 111 ...
Page 321: ...CAMSHAFTS 5 20 ...
Page 434: ...BALANCERS 5 133 ...
Page 450: ...WATER PUMP 6 15 ...
Page 461: ...THROTTLE BODIES 7 10 ...
Page 462: ...AIR INDUCTION SYSTEM 7 11 EAS27040 AIR INDUCTION SYSTEM 1 2 3 4 5 1 1 1 1 2 2 5 2 3 3 4 7 8 6 ...
Page 471: ......
Page 483: ...IGNITION SYSTEM 8 12 ...
Page 499: ...ELECTRIC STARTING SYSTEM 8 28 ...
Page 501: ...CHARGING SYSTEM 8 30 2 Rectifier regulator 3 AC magneto 7 Main fuse 8 Battery ...
Page 503: ...CHARGING SYSTEM 8 32 ...
Page 527: ...COOLING SYSTEM 8 56 ...
Page 571: ...FUEL INJECTION SYSTEM 8 100 ...
Page 577: ...FUEL PUMP SYSTEM 8 106 ...
Page 583: ...WINDSHIELD DRIVE SYSTEM 8 112 ...
Page 589: ...ACCESSORY BOX SYSTEM 8 118 ...
Page 599: ...ABS ANTI LOCK BRAKE SYSTEM 8 128 ...
Page 629: ...ABS ANTI LOCK BRAKE SYSTEM 8 158 ...
Page 673: ...YCC S Yamaha Chip Controlled Shift SYSTEM FJR13AE only 8 202 ...
Page 676: ...ELECTRICAL COMPONENTS 8 205 FJR13A 1 17 16 18 19 3 2 4 5 6 7 8 9 10 11 12 13 14 15 ...
Page 678: ...ELECTRICAL COMPONENTS 8 207 FJR13AE 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 16 18 19 20 17 ...
Page 680: ...ELECTRICAL COMPONENTS 8 209 FJR13AE 1 19 18 17 20 21 3 2 4 5 6 8 7 9 10 11 12 13 14 15 16 ...
Page 717: ......
Page 718: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...