Motolectric HICAP | Triumph Triple Install
You do not need to remove the tank entirely from the motorcycle but you do need to remove the rear fixing bolt and prop up the tank with a block of wood or other suitable strong item so that you have access under the tank to the rear of the engine. Be sure that you use something that is sturdy enough and take pains to secure it in place because the tank is very heavy and it would be dangerous if it could fall while you're working on the bike.