Logo
FULL SITE MENU

Search results

  1. S

    1993 Mariner (Marathon) 25hp 2 stroke - Tiller conversion

    I picked up the motor a few months back and it was originally set up for remote control. I'd like to convert it to a tiller. I have been collecting some parts (probably some wrong) and have learned along the way that there are (at least) 2 options. By the attached photo, can someone tell me if I...
  2. S

    2003 150 hpdi (Z150TXRB) trim tilt and starter issue.

    First time poster to the Yamaha forum, I usually live over in the Evinrude/Johnson forum for some old antiques I have. But I also have and love my old Yamaha 150 hpdi. Been a great motor for a long time. This issue happened a few months back and I'm just getting around to fixing it. So what...
  3. S

    Struggling with a spark test (1956 Johnson 10)

    I have been trying to get a spark to jump 5/16" to 3/8" gap with a tester I got from an automotive store. It's not working yet, and I've traced down all items I can think of. I may be doing something wrong. So here is my procedure: 1. remove both spark plugs. 2. Gap tester to desired gap. I've...
  4. S

    19556 Johnson 10 (QD-17) tune up question

    The last few times I've run the motor it has been a little less than perfect. I wanted to give her a good tune up. I expected I would be cleaning the carb and checking the ignition. I tested the ignition with a spark tester, expecting to see the spark jump 3/8". Test showed it would jump 1/4"...
  5. S

    1957 Evinrude Big Twin. A couple of questions.

    So I ran across a nice Big Twin, model 25028, and comparing to the smaller ones of the same year, I have found some differences that I'd like to learn more about. 1. What is the purpose of the Cut out switch and how does it operate? 2. What is the purpose of the mercury switch and is it...
  6. S

    1972 Johnson 20HP - What exactly do I have?

    I posted a few weeks back about a Johnson 20 I picked up, model 20R72R (1972). I haven't spent much time on it yet, but have noticed a few unusual things. My first post was just wondering if the 20 and 25 hp were close enough cousins that I could upgrade it easily. Quickly found out the blocks...
  7. S

    1972 20HP and 25HP Johnson models

    I ran across a nice freshwater Johnson, 20 HP, 1972, model 20R72R. It appears to me that Johnson had a 20 and 25 HP model that year and Evinrude only sold the 25. From the parts list book I picked up from Ebay, I can't find the difference between the 20 and 25HP Johnson models. Can anyone tell...
  8. S

    Old Evinrude aftermarket recommendations

    Curious what the collective experience of the members here would be. What aftermarket brands have you had the best luck with for some of the common replaceable items? Are OMC/Evinrude parts always superior? Most of my projects are 55-58, 7.5-18hp Evinrudes. 1. Coils 2. Condensers 3. Points 4...
  9. S

    April 1 2021, new law required Engine cutoff switches (ECOS)

    Just saw this on my monthly blast from BoatUS. I read through the exemptions but didn't see antiques that do not have this feature. So a couple of brief questions. (1) Any info available outside of the email blast that covers this? and (2) What options exist to retrofit old motors, particularly...
  10. S

    1956 Johnson 10 QD-17 on the pond

    We took the motor out for the first test. The pond is in south Georgia at my folks place. It's small but big enough and deep enough to have some fun. The videos below are my son testing it out with my dads 14 foot flat bottom John (Alumacraft 1442 I think) This vid shows it running about as...
  11. S

    Another 1957 (1958) Evinrude 18 powerhead review

    You guys are always helpful (and often brutally honest) and it's helped me learn alot. Here is another 18 powerhead. I picked this up at the AOMCI swap meet a few weeks back and just got around to checking it out. I bought the full motor as a parts motor, very cheap, and really only expecting to...
  12. S

    Old vs. New HP ratings

    Someone once told me that at some point in the past, they measured hp output for an outboard at the prop, and now they measure that the fly wheel. The result being that an old outboard at say 25 HP, was stronger than a modern 25. So I have a couple of questions. First, is there any truth to...
  13. S

    1956 Johnson 10 (QD-17)

    On the advice of folks on this board, I found a good clean fresh-water motor as a project instead of a few of the local saltwater motors I had been tinkering with. I found a very clean QD-17 at the local AOMCI swap meet a few weeks back in central FL. I converted to a fuel pump with the help of...
  14. S

    Sierra fuel pump compatibility

    Local shop pointed me to Sierra 18-7350 as an alternate part to 388685 which is the specified fuel pump on this site for the QD-21. Looking at the Sierra catalog, it appears that this is the only "square" pump available. My question is, does this also cross to other small Evinrude/Johnson pumps...
  15. S

    AOMCI meet in Lake Shipp FL in Nov 2020

    Starting a new one, hopefully with reduced picture sizes. Evinrudes:
  16. S

    AOMCI meet in Lake Ship FL in Nov 2020

    On the sage advice of members here, I joined the national club and central FL chapter of AOMCI and attended my first meet all in a weeks time. Great folks and lots of fun learning for me. I'll post some pics (some Mercs as well that were amazing) but most of the attendees were Johnson/Evinrude.
  17. S

    1957 Evinrude cowling

    Does the discoloration at the aft end of the inside of this 1957/58 Evinrude 18HP cowling suggest anything or is it a normal occurence?
  18. S

    1957 18hp Fastwin powerhead take 2

    I've found another potential powerhead for use on my 57 Fastwin. It's local and I have the opportunity to check it out before buying. It's advertised as a freshwater only motor with 120 PSI per cylinder. I have a couple of questions: 1. I'll verify the compression, but haven't done this on an...
  19. S

    18hp Johnson block inspection

    I'm replacing the spent 57 Evinrude powerhead with a 58 Johnson that I got off of ebay. I'm no expert at what I'm looking at, so I thought I'd post some pictures to see what the experts here think. First, here are the cylinders.
  20. S

    1957 18hp carb kit

    Is there such a thing? I can't find any OEM listing. Also, is there any good experiences with aftermarket carb kits? I see some on ebay.
Back
Top