AIR INDUCTION SYSTEM
7-13
EBS30235
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.
2. Check:
• Reed valve
• Reed valve stopper
• Reed valve seat
Cracks/damage
→
Replace the reed valve
assembly.
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 9-96.
EBS30236
INSTALLING THE AIR INDUCTION SYSTEM
1. Install:
• Reed valve plate “1”
TIP
Align the notch “a” in the reed valve plate with
the projection “b” of the reed valve seat on the
cylinder head.
A. From the air filter case
B. To the reed valve
A
B
a
b
1
Summary of Contents for 2016 Grizzly yf700gg
Page 6: ......
Page 8: ......
Page 11: ...IDENTIFICATION 1 2 ...
Page 37: ...ENGINE SPECIFICATIONS 2 6 Air induction system Solenoid resistance 18 22 Ω ...
Page 58: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 EBS30023 LUBRICATION DIAGRAMS 6 7 8 9 3 4 3 2 1 5 ...
Page 60: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 1 2 3 4 5 ...
Page 62: ...COOLING SYSTEM DIAGRAMS 2 31 EBS20021 COOLING SYSTEM DIAGRAMS 1 2 3 10 9 8 6 7 5 4 ...
Page 78: ...CABLE ROUTING 2 47 Front and rear brake hoses F 3 F 3 F 3 3 I G H 4 4 B C D 2 E D 2 A 1 ...
Page 80: ...CABLE ROUTING 2 49 ...
Page 83: ......
Page 119: ...PERIODIC MAINTENANCE 3 36 A Headlight left and right B Handle mounted light b a 1 A b a 1 B ...
Page 120: ...PERIODIC MAINTENANCE 3 37 ...
Page 197: ...REAR ARMS AND REAR SHOCK ABSORBER ASSEMBLIES 4 74 7 9 8 9 7 3 5 4 5 3 6 2 10 10 1 ...
Page 198: ...REAR ARMS AND REAR SHOCK ABSORBER ASSEMBLIES 4 75 ...
Page 203: ...ENGINE INSPECTION 5 2 Top cover Refer to GENERAL CHASSIS 2 on page 4 6 ...
Page 244: ...ELECTRIC STARTER 5 43 a b b 1 2 3 ...
Page 316: ...AIR INDUCTION SYSTEM 7 9 EBS20057 AIR INDUCTION SYSTEM 3 4 1 2 3 4 1 2 ...
Page 352: ...REAR CONSTANT VELOCITY SHAFT ASSEMBLIES FINAL DRIVE ASSEMBLY AND REAR DRIVE SHAFT 8 31 ...
Page 355: ......
Page 365: ...ELECTRIC STARTING SYSTEM 9 10 ...
Page 369: ...CHARGING SYSTEM 9 14 ...
Page 417: ...FUEL PUMP SYSTEM 9 62 ...
Page 434: ...ELECTRICAL COMPONENTS 9 79 1 2 3 5 7 8 9 10 11 12 13 14 15 16 17 18 19 4 6 ...
Page 454: ...ELECTRICAL COMPONENTS 9 99 ...
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