Disconnect the battery, removing the negative terminal first. There is a bolt holding the battery in at the front you will need to undo before you can lift it out. Once it's out, disconnect the fuse boxes from the battery case, then unclip the battery case. I removed the air box lid to give me a bit more room. It's a pig to get it out, try and keep all the wires held back. Getting the case back in is a ****. Disconnect the air box from the outlet and two inlets. The air box has no screws so just pulls out. Remember to double check you have everything connected up again afterwards.