Mariner 90 4-stroke service manual

[Jerry]

I'm trying to find a service manual for a 90HP Mariner 4-stroke from 2005. Engine type is 7F90412TD.
The only thing I could find was an owner's manual which was common to Mariner, Mercury and something else; for both 75HP and 90HP engines. That owner's manual is only a little bit more useful than a chocolate teapot, I'm also not sure if it's for exactly the same model.

[Jerry]

I think I have found it, it was the last link from here:

http://northernexposurerescue.org.uk...r%20Manual.pdf

Unfortunately I couldn't find any references to engine model numbers, only manufacturer, power and year - is that enough, have there been so little change in the engine design?

[uncle al]

If I was you I would use the OBM serial number, not the model ID, because sometimes there used to be a split in the manuals.

[Jerry]

Originally Posted by uncle al

If I was you I would use the OBM serial number, not the model ID, because sometimes there used to be a split in the manuals.

I've tried looking for a site like that, haven't found it. What have I (obviously!) missed?
Are differences in the engine significant or small details? After a quick scroll through the manual I found, I couldn't really see any differences between the engine and the manual. Admittedly I've only had it for a few days (the boat, not the manual!), so I'm unlikely to notice some small and subtle details.

[uncle al]

It could be something as simple as a resistance, or a torque setting.