Engine tag number decoding???

[oldryder1973]

NEw member here. Recently acquired a 50hp Spirit with a transmission issue.

Tag numbers are as follows:

500013 then 5001 001245

not sure what to make of these, they don't match anything I could find via Google. Looking for advice.

thx in advance for help.

Mark in MN

[artdf175]

5001-001001 shows as a 1980 model motor

art..