7-14
VIEW 1. (NO FLOW)
VIEW 2. (FLOW)
AIR INDUCTION SYSTEM
CARB
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.
EAS00508
AIR CUTOFF VALVE
The air cutoff valve is operated by the intake gas
pressure through the piston valve diaphragm.
Normally, the air cutoff valve is open to allow
fresh air to flow into the exhaust port. During
sudden deceleration (the throttle valve sudden-
ly closes), negative pressure is generated and
the air cutoff valve is closed in order to prevent
after-burning.
Additionally, at high engine speeds and when
the pressure decreases, the air cutoff valve au-
tomatically closes to guard against a loss of per-
formance due to self-EGR.
VIEW 1. (NO FLOW)
When decelerating (the throttle closes), the valve will
close.
VIEW 2. (FLOW)
During normal operation the valve is open.
A From the air cleaner
B To the reed valve
C To the carburetor joint
Summary of Contents for FZS1000(N) 2001
Page 1: ......
Page 2: ......
Page 8: ......
Page 9: ......
Page 11: ...GEN INFO ...
Page 20: ......
Page 22: ...SPEC ...
Page 43: ...2 21 TIGHTENING TORQUES SPEC Crankcase tightening sequence ...
Page 49: ...2 27 COOLING SYSTEM DIAGRAMS SPEC 1 Radiator cap 2 Thermostat 3 Thermo unit ...
Page 50: ...2 28 COOLING SYSTEM DIAGRAMS SPEC 1 Radiator ...
Page 55: ...2 33 LUBRICATION DIAGRAMS SPEC 1 Cylinder head 2 Crankshaft ...
Page 56: ...2 34 LUBRICATION DIAGRAMS SPEC 1 Main axle 2 Oil delivery pipe 3 Drive axle ...
Page 65: ......
Page 127: ......
Page 128: ......
Page 203: ......
Page 207: ...ENG ...
Page 293: ......
Page 294: ......
Page 296: ...COOL ...
Page 309: ......
Page 311: ...CARB ...
Page 328: ......
Page 365: ...8 35 SIGNAL SYSTEM ELEC EAS00793 SIGNAL SYSTEM CIRCUIT DIAGRAM ...
Page 391: ......
Page 401: ......