I'm reading the seloc manuels aren't very good, get the mercury service manual for sure, you will find one. Have you tried the Mercury home office, the dealer, an online manuel, e-bay, Amazon, Google search, is there one manual that covers a few different hp? Our Force service manual covers 105,115,125,140, HP
Does that part number associate with a date? Theres an ebay post with that same number seems to associate with the year 1984, does that year cover back to 1980?
Actually the --3 at the end would be the latest manual produced while the --1 would of been the first one made. Either one should work well for your 1980 engine model.... The manual should mention inside as you read it if there should be something different between the XD model vs the non xd model.
Opinionated source. I'll give you another opinionated source. I like Seloc better than my Merc OEM manuals. More pics and better/more involved explanations. Got mine on this site...had both side by side and made my decision....2002 90 Merc 3 cyl 2 stroker. Go to the top of this page and look under Boating Accessories. you can buy one or online buy time. I did the online version and had a manual as soon as I paid the price. Real convenient.
I would say the seloc is a good substitute except they really do not have good information on the shifting and throttle linkages. The 25 hp has a unique system for that. The factory one has most of the information and will be good the XD doesn't mean a whole lot.
