that my friend is ur starter motor.. click click yo.. check ur rate going into ur starter if u can.. not too hard on RBs.. using a multi meter then.. if its 12.3v it is gonnaneed a starter motor over haul... i can pull it out.. and from memory its around 150 to get it over hauled.. a second hand SM will be around $100 from all jap..
if u need a hand let me knw..