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  1. twoelvis

    Need help finding a test propeller for Johnson 90hp

    Bought one. Thanks
  2. twoelvis

    Need help finding a test propeller for Johnson 90hp

    https://www.ebay.com/itm/396177608760 https://www.ebay.com/itm/145663716391 https://www.ebay.com/itm/365064366288 https://www.ebay.com/itm/387637638325
  3. twoelvis

    Need help finding a test propeller for Johnson 90hp

    The issue at the end of last year was the engine would not idle when warm. I have found that at least one cylinder clearly had bad reeds. So, I replaced all reeds and intake gaskets. I am hoping that the problem is fixed. But, I want to test it under load before I put it on the water...
  4. twoelvis

    Need help finding a test propeller for Johnson 90hp

    I have a 2005 Johnson 90 2 stroke model J90PLSOA. I am looking for a test propeller, so that I can run the motor in a tank under load. I am not clear on what test prop. will fit my motor. Can someone point me in the direction of what to buy?
  5. twoelvis

    Are vacuum hose diagrams available?

    I made a separate post about how the engine is running. New spark plugs may have cured that problem. I will know for sure when I can run it under load. But, I disconnected some hoses, while troubleshooting. I took photos of the hose connections before disconnecting the hoses. But, the...
  6. twoelvis

    Are vacuum hose diagrams available?

    I have the 90hp J90PLSOA engine. I am convinced that the last person who worked on it did not connect the vacuum hoses back correctly. Are their vacuum hose diagrams available?
  7. twoelvis

    Engine Won't Run When Warm

    I am noticing that one of the carburetors is spitting out gas in to the air intake box. Is it a bad reed causing that?
  8. twoelvis

    Engine Won't Run When Warm

    I did a cold compression test. All 4 cylinders were 131-136 psi. I could not find a compression spec. But, since all 4 were similar, I think that means compression is good? I am still trying to find more info on testing the VRO. But, I did find out how to test the fuel pressure. So...
  9. twoelvis

    Engine Won't Run When Warm

  10. twoelvis

    Engine Won't Run When Warm

    It may not have been up to operating temperature when the plugs were pulled. I was toggling the choke on and off, in order to get it to run.
  11. twoelvis

    Engine Won't Run When Warm

    I did not do a compression test. I was assuming the internal engine was in good shape due to low hours. But, I guess that I should go back to square one and do the compression check. I am assuming that I should do the compression test when the engine is warm? It is tough to get the...
  12. twoelvis

    Engine Won't Run When Warm

    I just replaced the fuel tank, fuel lines, and primer bulb. I am new to outboards. Are the fuel pumps electric, or powered by vacuum?
  13. twoelvis

    Engine Won't Run When Warm

    Spark checks out good. In my mind, it is not getting enough fuel. Any introduction of additional fuel in to the intake, either by spraying, or by choke, keeps it running. It does not sound like just one cylinder that is bad causing the problem. It seems uniform across all 4 cylinders.
  14. twoelvis

    Engine Won't Run When Warm

    Yes, the rectifier is water cooled. The OEM rectifier has nipples. The aftermarket replacement rectifier has fins. I replaced the rectifier, and reused the old gasket, until the new one arrives. The old gasket had no damage. The rectifier has fixed the tachometer problem. But, the new...
  15. twoelvis

    Engine Won't Run When Warm

    I shoul Hopefully I can get the motor to act like that when running on the trailer. So far, it has only done it on the water. I really dont want to have to do a compression check on the river.
  16. twoelvis

    Engine Won't Run When Warm

    I am pretty sure that spraying gas/oil mix in the intake would keep it going. I am basing this on my experience just splashing gas in the intake to get it started. I have to pull the plugs to see.
  17. twoelvis

    Engine Won't Run When Warm

    I am pretty sure that the rectifier is what is causing the tach. issue. I plugged in a replacement rectifier momentarily to see if the tach worked, and it seemed to have solved the problem with the tach. I can not say for sure, because the tach. worked intermittently with the original...
  18. twoelvis

    Engine Won't Run When Warm

    I do not know alot about this engine. I just bought it. Outbaords in general are new to me.
  19. twoelvis

    Engine Won't Run When Warm

    The model is J90PLSOA It has 4 carburetors. Tank had next to nothing in it when I bought it (not enough that the ball became hard when I pumped it) I put 20 gallons in off the bat. Then took it on the water the day that I bought the boat. That was the first time that the problem...
  20. twoelvis

    Engine Won't Run When Warm

    I am new to outboards. I have a lot of mechanical experience, just not with outboards. I just bought a pontoon boat with a 2005 90hp Johnson 2 stroke outboard. The engine runs great for the first 30-60 minutes of the day. After 30-60 minutes, it will either not idle, or barely idle. When it is...
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