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  1. K

    1975 25 hp Evinrude 25502B

    Yeah I had it set pretty good in that 2nd video. I had the idle adjustment set to the lowest I could go with out it dying. But had to have the throttle valve open a smidge to keep it going. I am gonna check vacuum leaks and carb swap and test. Got parts on order to address the baffle gasket...
  2. K

    1975 25 hp Evinrude 25502B

    Yeah I had it set pretty good in that 2nd video. I had the idle adjustment set to the lowest I could go with out it dying. But had to have the throttle valve open a smidge to keep it going. I am gonna check vacuum leaks and carb swap and test. Got parts on order to address the baffle gasket...
  3. K

    1975 25 hp Evinrude 25502B

    @Crosbyman I Will be trying that for sure when back together, I don't have the lean sneeze tho, or maybe a form of that? What's happening to this motor is when I back the throttle down to its Lowest, the engine just dies. No sneeze, just dies. Ican make it sneeze by adjusting the low speed...
  4. K

    1975 25 hp Evinrude 25502B

    Carb or intake problem? Like Reed valves?
  5. K

    1975 25 hp Evinrude 25502B

    What you thinking? Even a guess?
  6. K

    1975 25 hp Evinrude 25502B

    Well had to be done. I will swap carbs after it together and see if it's that
  7. K

    1975 25 hp Evinrude 25502B

    Would the baffle gasket leaking cause that idle issue? Or the missing drive shaft oring? Or the damaged waterpump grommet?
  8. K

    1975 25 hp Evinrude 25502B

    165738 was the way the bearing was and was correct. 165741 is the bearing.
  9. K

    1975 25 hp Evinrude 25502B

    195928 pic was facing the bearing. 155508 was facing the spring and that is fuel mix on that side of the seal. I will post pic of bearing as soon as I get home. Thanks again for you time and reply.
  10. K

    1975 25 hp Evinrude 25502B

    Bottom of lower crankshaft seal. There is a small knick in it....
  11. K

    1975 25 hp Evinrude 25502B

    Well that was easy. Clip spring and pulled the lower seal. Will update when she's all back together. Hoping for a good idle. There was some fuel on the top of the seal, so it could have been leaking. Rubber inside looked old and worn too.
  12. K

    1975 25 hp Evinrude 25502B

    @F_R any ideas what could cause the dying when throttle valve closed? After taking this thing apart I know several things needed to be fixed, driveshaft o-ring, baffle gasket, water pump grommet, and I will replace the lower seal just for knowing it's done. Probably replace impeller since I am...
  13. K

    1975 25 hp Evinrude 25502B

    I will inspect it later today. Got new baffle gasket and carbon seal on the way. Gotta find a cover seal though, they are scarce.
  14. K

    1975 25 hp Evinrude 25502B

    So what needs to be done to get that lower crankshaft carbon seal out? What bolt do I loosen, the two on the side then what others, I think I read something about 3 bolts need to be loosened and then the seal will come out...
  15. K

    1975 25 hp Evinrude 25502B

    Well I took it apart today. Found that the drive shaft o ring was gone, water pump grommet was all messed up and broken, baffle gasket was gone, and the housing cover seal was gone. Assuming that was all bad, I am sure the carbon lower crankshaft seal is bad too. Before I order all the things I...
  16. K

    1975 25 hp Evinrude 25502B

    Yeah I was suspecting that too. Compression is 130/135. Plenty of compression. When I put the hood on it runs a little better. I am showing it tomorrow. I have it up for sale soo we will see what goes down. I had it to the best it was gonna be that last video I put up. Then I pulled the...
  17. K

    1975 25 hp Evinrude 25502B

    Pulled that line and it did not make a big difference. The engine is still surging a bit. Any ideas with that? I thinking the carb is bad?
  18. K

    1975 25 hp Evinrude 25502B

    Lol yeah. The other 2 are 73 18 hp and a 72 20hp so no not exactly the same. I will pull that recirculation hose off and see if it improves 😉 read about this a few different times. Recirculating that gas helps environment but messes With performance. Should I run a j6c plug think that will help...
  19. K

    1975 25 hp Evinrude 25502B

    This is from the other day, a better video.
  20. K

    1975 25 hp Evinrude 25502B

    Both look like this. Got good spark.
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