Does anyone know where to get merc. service manuals?

I have a 115hp merc outboard and i'm looking for a site I can get a free pdf service manual. I'm not sure what year, it's the real tall 6 cyl. with the sheet metal cowl. no spark, I'm pretty sure it's the stator, but I would like to follow the proper testing procedure to be sure. Any help appreciated. Thanx.