Removing
1. Loosen the clamp on the air hose (90/1).
2. Remove the vacuum hose (100a) from the membrane mechanism of the vacuum advance ignition of the hydraulic valve (100).
3. Unhook the connecting rod (200) on the hydraulic valve.
4. Remove two screws (60/2) and move the exhaust gas recirculation valve to the side (60).
5. Remove three screws (105/1).
6. Pull out the hydraulic valve body (105a) from the cross pipe of the air filter.
Installation
1. Check the O-ring for damage and replace if necessary.
2. Slide the hydraulic valve housing together with the O-rings into the cross tube of the air filter. To do this, loosen the bolts of the air cleaner cross tube holder and then tighten them again.
3. Screw on the hydraulic valve body.
4. Screw on the exhaust gas recirculation valve.
5. Attach the connecting rod to the hydraulic valve.
6. Attach the vacuum hose.
7. Attach the air hose and secure it with a clamp.