I would really appreciate any help or advice on this matter - - either from a Triumph mechanic or from your personal experience. I suspect that the same issue relates to all 650 unit construction twins.
I recently acquired a 1969 TR6R that is in excellent condition in most respects. However, when I was attempting to adjust the valve clearance I found it impossible to get standard or even angled feeler guages into proper position for adjustments.
I assume that there is an easy way to ensure proper adjustment - - something like: turn the nut all the way down and back off 2 turns or the like. Has anyone learned the secret? Can you help this novice with what should be a simple and regular maintenance item.
Best regards.