7-46
AIR INDUCTION SYSTEM
FI
EAS00507
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, 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).
EAS0097
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 motorcycle 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 be-
comes higher than the specified value.
A From the air cleaner
B To the cylinder head
Содержание YZF-R1S
Страница 1: ......
Страница 50: ...2 22 TIGHTENING TORQUES SPEC Cylinder head tightening sequence Crankcase tightening sequence ...
Страница 55: ...2 27 1 Radiator fan 2 Radiator 3 Water pump COOLING SYSTEM DIAGRAMS SPEC EAS00033 COOLING SYSTEM DIAGRAMS ...
Страница 56: ...2 28 1 Thermostat 2 Radiator cap 3 Radiator 4 Oil cooler COOLING SYSTEM DIAGRAMS SPEC ...
Страница 57: ...2 29 ENGINE OIL LUBRICATION CHART SPEC ENGINE OIL LUBRICATION CHART ...
Страница 61: ...2 33 1 Main axle 2 Oil delivery pipe 3 Drive axle LUBRICATION DIAGRAMS SPEC ...
Страница 62: ...2 34 1 Cylinder head 2 Crankshaft LUBRICATION DIAGRAMS SPEC ...
Страница 267: ...5 45 CRANKSHAFT POSITION SENSOR ENG 5 Install Srider seat Sfuel tank Refer to SEATS and FUEL TANK in chap ter 3 ...
Страница 346: ...7 2 FUEL INJECTION SYSTEM FI 7 WIRING DIAGRAM ...
Страница 401: ...8 8 IGNITION SYSTEM ELEC EAS00735 IGNITION SYSTEM CIRCUIT DIAGRAM ...
Страница 420: ...8 27 LIGHTING SYSTEM ELEC EAS00780 LIGHTING SYSTEM CIRCUIT DIAGRAM ...
Страница 427: ...8 34 SIGNALING SYSTEM ELEC EAS00793 SIGNALING SYSTEM CIRCUIT DIAGRAM ...
Страница 436: ...8 43 COOLING SYSTEM ELEC EAS00807 COOLING SYSTEM CIRCUIT DIAGRAM ...
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