i have just acquired the above motor. as apparently usual, the sticker on the transom mount has completely faded to white. i was, however, able to find a small sticker attached to the top of the stbd side block. 856A9F. this makes sense as the model number. there is no available serial number. is there a visual way to find the series/configuration? a,b,l? want to get parts/service manuals. thx