Ok LOL. Not a very great pic off a how to. But gives you an idea.
The red screws hold on the plate that covers the spark plugs. The leads go under this. There is 4 Allen key bolts to take out. Take them out and pull off the plate.
Then pull off the HT leads. Be careful don't break them. (little tip. I used to mark them with tip ex, 1 mark for the first lead, 2 marks for the second lead and so on) And put them aside.
Then take off all the Allen keys around the rocker cover. Ive marked a few out in yellow. But there is more around the back ect.
Then take off the breather pipe there should be a jubilee clip on the pipe. Mine has not got one as i am working on my engine.
The cover will come off. Just a little wiggle as it is held on with sealer.
Just remember to clean the two contact surfaces before you replace it.
Here's the pic sorry my engine is a bit different. It does not have a dizzy cap and only 4 leads, as it has been converted into a single spark with throttle boddies and electric engine management ect. But its nearly the same. Plus mine is all dirty lol.
Hope this helps. If you get stuck let me no.