Air Suction Valve Removal
Remove:
- Air Switching Valve (See Air Switching Valve Removal)
- Air Suction Valve Cover Bolts [A]
- Clamp [B]
- Air Suction Valve Cover [C]
- Remove the air suction valve [A].
Air Suction Valve Installation
- Install the air suction valve [A] so that its side where stopper is fixed with the screws [B] faces the front [C].
- Install the clamp [A] as shown.
Tighten:
Torque - Air Suction Valve Cover Bolts: 9.8 №m (1.0 kgf·m 87 in·lb)
Air Suction Valve Inspection
- Remove the air suction valve (See Air Suction Valve Removal).
- Visually inspect the reeds [A] for cracks, folds, warps, heat damage or other damage.
If there is any doubt as to the condition of the reeds, replace the air suction valve as an assembly.
- Check the reed contact areas [B] of the valve holder for grooves, scratches, any signs of separation from the holder or heat damage.
- If there is any doubt as to the condition of the reed contact areas, replace the air suction valve as an assembly.
- If any carbon or other foreign particles have accumulated between the reed and the reed contact area, wash the valve assembly clean with a high-flash point solvent.
Caution: Do not scrape off the deposits with a scraper as this could damage the rubber, requiring replacement of the suction valve assembly.
Air Switching Valve Removal
- Remove fuel tank (See Fuel Tank Removal in the Fuel System (DFI) chapter).
- Separate the air switching valve hose [A] from the air suction valve cover.
- Disconnect the connector [A].
- Separate the air switching valve hose [B] from the air cleaner housing, and remove the air switching valve [C].
Caution: Never drop the air switching valve, especially on a hard surface. Such a shock to the valve can damage it.
Air Switching Valve Installation
- Install the air switching valve [A] with hoses [B] as shown.
- Install the clamp [C] so that its pinch heads face the right.
- Connect the air switching valve lead connector.
Air Switching Valve Operation Test
- Refer to the Air Suction System Damage Inspection in the Periodic Maintenance chapter.
Air Switching Valve Unit Test
- Refer to the Air Switching Valve Unit Test in the Electrical System chapter.
Clean Air System Hose Inspection
- Be certain that all the hoses are routed without being flattened or kinked, and are connected correctly to the air cleaner housing, air switching valve and air suction valve cover.
If they are not, correct them. Replace them if they are damaged.