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  1. J

    Poor engine compression, '55 Johnson 25HP

    I have a '55 Johnson 25HP that I bought as a "parts motor" as the seller knew it had problems.<br /> He said it ran "about 2 years ago" (who knows?) and that it lacked high speed power. He had the carb apart too and it needs new seals, gaskets.<br /><br /> So....I'm an auto tech but I'm...
  2. J

    Possible to know late 50s powerhead model info by serial#?

    Sorry if overdone but I know that with old Mercs, one can know year and more by the serial #. From what I've seen so far, it's not so easy with Johnson/Evinrude in comparison with old stuff (late 50s).<br /> I know that my outboard has a replacement powerhead but not sure as to exactly what...
  3. J

    Mid 50s 25HP Johnson won't shift, "not attached".....ideas?

    I'm looking at an ad for another vintage outboard where the seller's selling it as a "parts outboard" because he claims that it has a few problems and doesn't know anything about it, selling it "as is". The only thing that might be a big deal is that he says it doesn't shift, it's stuck in F now...
  4. J

    Do all Johnson outboards made after '59 definately have t-stats?

    Someone mentioned that in my other thread but I'd like to be 100% sure before buying another, newer model outboard manual attempting to know what HP motor I now have. For example, if it's a newer (late 60s, early 70s) 20 or 25HP powerhead, then it'd have to have a t-stat right? Mine does not...
  5. J

    Johnson powerhead #s ('70ish), any way to know HP, 20 vs 25?

    I have a restored '57 18HP Johnson where the seller who restored it says that he used a newer 25HP powerhead but at one point wasn't sure if it was perhaps a 20HP powerhead (the original 18HP powerhead had a bent crank so he replaced the complete unit). Thinks is a '69-'70 vintage unit.<br />...
  6. J

    Johnson powerhead #s ('70ish), any way to know HP, 20 vs 25?

    I have a restored '57 18HP Johnson where the seller who restored it says that he used a newer 25HP powerhead but at one point wasn't sure if it was perhaps a 20HP powerhead (the original 18HP powerhead had a bent crank so he replaced the complete unit). Thinks is a '69-'70 vintage unit.<br />...
  7. J

    Early 50s Johnson Seahorse 5.5 HP model year info? Sorry if redundant here

    It went unanswered in a previous thread. The model # is CD-11<br /> Is there an online chart or book somewhere for this info or do some of you guys just know? joaklay@wi.rr.com
  8. J

    Early 50s Johnson Seahorse 5.5 HP model year info? Sorry if redundant here

    It went unanswered in a previous thread. The model # is CD-11<br /> Is there an online chart or book somewhere for this info or do some of you guys just know? joaklay@wi.rr.com
  9. J

    Service manual, parts for early 50s Johnson 5.5 HP Sea Horse?

    I havent yet found manuals, parts for that engine online so far and although it still runs fine, I'd like a service manual for it and any available parts info too if anyone here knows of any good sources.<br /> Here's one that looks just like it on Ebay for $75 except that mine has a white...
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