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GEN
INFO
FEATURES
AIR INDUCTION SYSTEM
The air induction system (AI system) introduces fresh air into the exhaust port in order to burn the
unburned gas (which is present in the exhaust gas) in the exhaust pipe. The burning of the
unburned gases in this manner enhances the efficiency of the catalyst and results in cleaner
exhaust gases.
The AI system takes a portion of the air from the air cleaner, sends it to the reed valve via the air
cut-off valve, and introduces it directly into the exhaust port through the reed valve.
The air cut-off valve is controlled by the signals from the ECU in accordance with the combustion
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 motorcycle is being 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.
The reed valve is provided on the cylinder head cover above the cylinders, and sends air to the
exhaust pipe through the inside of the cylinder head.
1
Air cut-off valve
2
Reed valve
3
Exhaust port
4
Resonator
12
4
3
Summary of Contents for FJR1300
Page 1: ...LIT 11616 16 18 5JW 28197 10 FJR1300R FJR1300RC SERVICE MANUAL ...
Page 6: ......
Page 82: ...2 22 SPEC TIGHTENING TORQUES Cylinder head tightening sequence Crankcase tightening sequence ...
Page 89: ...2 29 SPEC 1 Crankshaft 2 Main axle 3 Drive axle OIL FLOW DIAGRAMS ...
Page 90: ...2 30 SPEC 1 Oil nozzle 2 Main gallery bolt 3 Crankshaft OIL FLOW DIAGRAMS ...
Page 91: ...2 31 SPEC 1 Main axle 2 Drive axle 3 Oil delivery pipe OIL FLOW DIAGRAMS ...
Page 92: ...2 32 SPEC 1 Exhaust camshaft 2 Oil check bolt 3 Intake camshaft OIL FLOW DIAGRAMS ...
Page 94: ...2 34 SPEC 1 Crank pin 2 Crankshaft OIL FLOW DIAGRAMS ...
Page 97: ...2 37 SPEC 1 Main axle 2 Drive axle 3 Middle drive shaft OIL FLOW DIAGRAMS ...
Page 98: ...2 38 SPEC COOLING SYSTEM DIAGRAMS 1 Radiator COOLING SYSTEM DIAGRAMS ...
Page 99: ...2 39 SPEC 1 Water jacket joint 2 Oil cooler COOLING SYSTEM DIAGRAMS ...
Page 101: ...2 41 SPEC 1 Coolant reservoir 2 Radiator 3 Water pump COOLING SYSTEM DIAGRAMS ...
Page 107: ...2 47 SPEC CABLE ROUTING 1 Tail brake light lead ...
Page 196: ...3 80 CHK ADJ ADJUSTING THE HEADLIGHT BEAMS ...
Page 288: ...4 92 CHAS 3 Install bearing 1 to the swingarm Installed depth a 4 0 mm 0 16 in SWINGARM ...
Page 531: ...8 35 ELEC LIGHTING SYSTEM ...
Page 570: ......
Page 571: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...