Withdrawal
1. Place a cloth under the regulator. Be prepared to collect spilled fuel.
2. Relieve fuel system pressure.
3. Disconnect the vacuum hose from the regulator.
4. Disconnect the fuel line from the regulator; plug the line to prevent leakage or ingress of dirt.
5. Remove 2 fixing bolts and remove the regulator.
6. Remove the O-ring from the regulator.
For installation:
7. Install a new O-ring on the regulator; lightly coat the ring with a thin layer of clean, fresh oil.
8. Install the regulator, making sure the O-ring is not damaged. Tighten the bolts to 12 Nm.
9. Connect the fuel line.
10. Install the vacuum hose.