There are a few threads and posts here and there discussing tank removal. This varies from the early (external fuel pump/filter and "chin pad" on top) to the later (in-tank pump/filter and painted top) V11s. The whole process is best begun with the tank very close to empty. Less fuel to spill and less plastic tank deformation while it is off the mounts. Prepare somewhere to place your precious tank while the maintenance is completed.   Fuel tank removal post in "How To . . ." by al_roe