You can get any install instructions on the product page at the bottom of the “Description” tab. They also ship with the new tank.
CONFIRMING THE TANK PRIOR TO PAINTING. The outer surface of the tank is sprayed with a thick coating of catalyzed polyester primer. This buff tan color must not be sanded through! Underneath this tan layer is a white epoxy primer, DO NOT sand through this white primer as the structural matrix is just below it. Sanding through the white primer can cause leaks to occur, especially around the bottom edges of the tank.
If your tank has a place for your pump to bolt on (I.E. 1098, GSXR, 749-999, etc) DO NOT PAINT OR PRIMER THE GRAY PRIMER AREAS. This can cause the pump to not seal. These areas are precision molded within thousandths of an inch and must be maintained as is, also DO NOT SCRATCH these surfaces.
Install all necessary plumbing and hardware before mounting on the bike, then fuel it to capacity and run at least half of it through by running the engine BEFORE PAINTING THE TANK.
Following the above procedure first will greatly help avoid any costly re-painting repair.
All tanks come with a set of instructions, please read them in full to avoid costly mistakes.