I have a 2013 400xt fi,all stock,never been off gravel roads,680kms... The problem is a slight noticeable noise as starter engages,but after it starts there is a clanging as the starter drive will not release as quickly as it should...I have removed it and cleaned ,shaft, splines weights etc, this thing kicks out with the least effort and I feel that the return spring which is a very soft spring is not enough to return it...p/s... the sprag grabs great and is only a touch gritty on reverse spin...any help would be greatly appreciated...thanks