Hi All,
Air cleaner removal is a simple task if you keep the bolt on the outside of each air cleaner and use drill a hole in the bolt of the inside attachment and use a pull-pin to secure (eliminating the nut). This allows simple removal of the outside nuts and a pull or replacement of the inside pins and washers to remove and replace the cleaners with no issues. Simply screwing the stud (with hole drilled) in or out will allow tightness adjustment. If you ever want to go back to original, simply replace the inside nuts. I have used this for a few decades now with no issues.
Keep in mind that, due to the left fender's close placement, their is limited space to properly place and hold the Unisyn during adjustment and adding any additions over the cleaners will further impede Unisyn positioning. Due to these conditions, the instrument suggested for use by Randy is a good alternative and one I have also used with good results.
Ray(64BJ8P1)