use a 1 in sq. or slat of some kind 8"? long aluminum or steel..8 in..on my 91 bagger... 80/20 alum stuff works(mine) from work...and place laterally angled install into opposing teeth...u nd to remove the tensioner assy ..easy...that setup is not good the way u have it on the tensioner block....or u can use that setup but pull the ten-assy out...ur block is hard on the chain and teeth btw...but it looks alum so ok