Adding more force to the adjustment puts more pressure on the cam chain and rollers than intended and will wear them out sooner. Let the spring inside the tensioner assembly put the correct amount of tension on the chain and lock it there.There is one note I don't understand in the FSM...N O T E : (l) lt should be noted that the tensioner pushrod should not be pushed in with finger and the cam chain should not be tightened excessively. This shortens the chain service life and lessens the guide roller durability.
In case you aren't completely familiar with the design you're adjusting, this is what it looks like.










