Mariner build by Yamaha parts needed.

[Salty-Yam]

Hi there, I have Mariner build by Yamaha model # 15M 684C S 070973. Could someone help me to find cross reference parts list. Mercury? or Yamaha?
Only thing I found is it looks like motor was build in 1988. Mercury Marine 15C M-684-000101 and up, and 1988 15SG Yamaha are looking almost identical to each other and similar to what i have. sorry cant post pics of what i have but this is same motor as mine.
Thank You

[Salty-Yam]

more Pictures

[dorado42]

I found a few websites that may help...if you want, PM me your email address and I will send you the attachments, I can not figure out how to do it on this page.