You can shut down a management VPLS without deleting the service parameters.
When a management VPLS is disabled, all associated user VPLS services are also disabled (to prevent loops). If this is not desired, first un-manage the user VPLS service by removing them from the managed-vlan-list or moving the spoke-SDPs on to another tunnel SDP.
— config>service
— vpls service-id
— shutdown
— config>service# vpls 1
— config>service>vpls# shutdown
— config>service>vpls# exit