Getting Access
Well from here it's difficult to even see where the fuel filter is. First things first. Lets get clear of that plastic cover. 4x nuts to undo with your 10mm socket. Put the nuts somewhere safe and if you can remove the washers too.
Around the oil filler cap is a rubber drip catcher. It's best to remove this if you haven't removed all the washers otherwise when the engine cover pops off it will send the washers all over.
Put the oil filler cap back on to stop debris getting into the engine.