Originally Posted by Blakebird
it's a very understressed engine with a low rpm threshold in normal use - they should stay put forever. Checking them won't take any time, easy to get to them.
would you rather have screw and locknut that you have to check every 7,500 miles?
I agree,my 82 CB900F has shims and they haven't budged in 15K miles,I would love to see somebody rack up some big miles and check the cam chains though.Like to see how the tensioners hold up.The old system was a weak point.