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Vacuum Switch Valve Removal; Vacuum Switch Valve Installation; Vacuum Switch Valve Test - Kawasaki KLX250R Owner's Manual

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ENGINE TOP END 4-5
Clean Air System {KLX250H6F - United States and Canada)
Vacuum Switch Valve Removal
•Remove:
Seat
Radiator cover (Left and Right)
Fuel Tank
•Remove the air hoses [A] and vacuum hose [B], and re-
move the vacuum switch valve [C].
Vacuum Switch Valve Installation
•Install the air hoses and vacuum hose to the vacuum
switch valve.
•Install the hoses correctly (see Cable, Wire, and Hose
Routing).
Vacuum Switch Valve Test
•Remove the vacuum switch valve.
•Connect the vacuum gauge [A] and syringe [BJ or fork oil
level gauge to the vacuum hoses as shown.
Special Tool - Fork Oil Level Gauge: 57001-1290
Air Flow [C]
•Gradually raise the vacuum (lower the pressure) applied
to the vacuum switch valve, and check the valve opera-
tion. When the vacuum is low, the vacuum switch valve
should permit air to flow. When the vacuum raises to
valve closing pressure, it should stop air flow.
Spring [AJ
Diaphragm [B]
Valve [C]
Low Vacuum [DJ
Secondary Air Flow [E]
*If the vacuum switch valve does not operate as described,
replace it with a new one.
NOTE
O
To check air flow through the vacuum switch valve, just
blow through the air cleaner hose.
Vacuum Switch Valve
Closin~f>ressure
(Open - Close)
Standard:
60 - 70.7 kPa (450 - 530 mmHg)
GE04038BS1
C
GE04018BS1
C
GE04019BS1
C
I
I
I

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Klx250

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