The CD is acually pretty easy to navigate. When you get the CD in your computer, you can open it up in windows explorer. The manuals are broken down into their individual sections like this:
As you can see down the left hand side are the different chapters and such listed on the CD. You can easily navigate to the chapter you want on the CD.
If you want to see what is in the engine section, just click on that folder and on the right hand side you can see the different sub-sections within the "Engine" chapter:
From there, you can open up the PDF file of whatever section or sub-section you want to. The sections are all book marked for ease of use so you can click on the bookmarks on the left hand side to go to that sepcific section of that chapter:
You can also click on the "Search" Button in Adobe PDF (also included on the CD). You can type in whatever you are looking for.... like "flywheel" and that will bring up in that chapter wherever the word "flywheel" is located in that chapter:
So, it is fairly easy to navigate through and find what you are looking for. The full manual is also included on the CD as one whole book. So, if you do not know what chapter the part you are looking for is in, you can open up the full manual and do a search in the full manual to find what you are looking for. Hope this helps.