o0norton0o said:It looks like your crankcase doesn't have the perch cast into the timing side to support a tensioner like my '70 commando does.
Now, seeing LAB's post, I have the feeling that I'm mistaken... lol
20M3S late...06-1537......
...tensioner boss????? at 4-5 oclock with 2 tapped holes is for starter not magneto
thank you , yes I see it now, I guess I need to print a copy of manual and read.L.A.B. said:"Turn the distributor body, leaving 3/16" up and down movement (slack) in the top run of the chain." according to the '68 version Commando factory manual.