You don't need to remove the belt tensioner as this will only make the whole process a pain. You want to load the tensioner spring up as much as possible, then tighten the retaining bolt back up so the tensioner is out of the way. Install your new belt and release the retaining bolt on the tensioner. The load from the tensioner spring should be enough to set the belt tension correctly. Here's a link to another post that might help you - http://www.mightyram50.net/vbulletin...ow-lucky-am-I-!