You actually can back it out like the older models to advance a click at a time. I did it with mine. Loosened one bolt then very slowly loosened the other until hearing a click, tightened it back up. That method worked but since there is the chance of over tightening the chain I decided to install an APE tensioner. Wish I had done it a lot sooner. Also folks say the tensioners rarely fail but I have seen pics of several that had failed (teeth on the plunger worn slightly allowing the plunger to go back and forth across several teeth). Install a manual tensioner and enjoy your bike. The stock tensioner is a piece of cake to put back in if you happen to need to take it in for warranty work.