Here is a graphic that shows the best tightening sequence plus the correct screw length for the Norton Commando timing cover.
This is also available as a PDF download in case you want to print it out to keep handy in your workshop!

Just click here to download
This article is from a series of Handy Workshop Guides I have put together.
These may be of interest to you:
Categories: Handy Workshop Guides, motorcycles, Tech Articles