[OK-944]

Actually, yes - if you remove the belt tensioner, then hold the tensioner in a partially "collapsed" position while removing the lock screw...you can then release the tension completely...move the bottom of the spring off of its "keeper," and then rotate the adjustment ring at the other end of the spring. There are four cylindrical holes cut into the shoulder of this adjustment ring, and you can use these as a reference so you can adjust with some precision/repeatability. After this, replace the bottom of the spring on its keeper, and re-assemble. You may need a bit of trial-and-error to get it right. I also recommend a thorough cleaning first - then reinstall to see if this (cleaning) was all that was needed.

In my case...the tensioner ('87NA) was not applying quite enough pressure - so, after cleaning/retesting to verify that it was still too loose...I tightened the spring by three "holes" (3/4 of a turn), and now it sets perfectly.

Wish I could have chimed in earlier when it would have been easier to add photos - but its been reinstalled and the covers are on. Sorry!

edit: just remembered that there is a lock nut on the adjustment ring - just sayin!