Originally Posted by Brute
Usually when you adjust the chain to tight it stretches the chain un evenly . I would jack the rear wheel up . Rotate the wheel & check the chain tension in several different locations . If it goes from loose to tight , loose to tight . You have damaged your chain . If not , don`t worry about the rest .
chain too tight = faster chain wear, faster sprocket wear, danger of damaging CS seal or countershaft.