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  1. J

    115 v4 2 stroke runs rough when warmed up

    Okay, I'll go ahead and order a head gasket. Where do you like to get your parts from? I don't wanna make the Amazon mistake. I'll take that head off and look at it.
  2. J

    115 v4 2 stroke runs rough when warmed up

    I've only owned it a year. I did compression test a week ago and wrote down values they were. Cyl 1. 120psi Cyl 2. 118psi. Cyl 3. 121psi Cyl 4 115psi The vro oil side has been unhooked so im mixing 50:1 in the tank, the spark im just using an inline tester but I can pull them out and check how...
  3. J

    115 v4 2 stroke runs rough when warmed up

    Where do you source your parts from then? Also i was messing with it more. If I press in the key every 4 seconds or so it will idle great. If I stop it will start backfiring and die. So it has to be fuel related then?
  4. J

    115 v4 2 stroke runs rough when warmed up

    Okay, so no more revving in neutral thanks for the advice! I hooked it up to a hose today and was messing with it. I got it to start acting up it does have spark on all 4 cylinders when it's doing this. So it may be a fuel issue like @racsaid. I'll attach some videos. Both videos are with the...
  5. J

    115 v4 2 stroke runs rough when warmed up

    Okay guys I'm back at it with my fling. I kinda lost time and interest last year so I just winterized it and put it away. But I just got it back out a couple weeks ago and am trying to solve my problem. My problem would be considered low power/ loss of WOT RPM. When I floor it it doesn't get...
  6. J

    115 v4 2 stroke runs rough when warmed up

    My bad, I should have clarified. The turbojet manual is the manual for the engine and jet drive in the boat. It's just a 115 johnson evinrude outboard mounted in the boat on a jet drive. Mines at the shop so I can take a picture of the page that recommends those plugs but this is what the manual...
  7. J

    115 v4 2 stroke runs rough when warmed up

    Those plugs have been in the engine for 2 months and have 3 runs on them, they are what the turbojet manual recommended
  8. J

    115 v4 2 stroke runs rough when warmed up

    Here is a pic of the plugs, im really leaning towards a weak spark when engune gets to op temp. Is there a way to test the power pack? Or just parts cannon and see what happens?
  9. J

    115 v4 2 stroke runs rough when warmed up

    Did a compression test all cyl between 118 and 121 psi
  10. J

    115 v4 2 stroke runs rough when warmed up

    Okay, I'll do a compression test. And I havnt tested the overheat sensors but I did take my IR temp gun with me last time and when it boggs down and dies the cyl head and block are in between 145 and 160ish
  11. J

    115 v4 2 stroke runs rough when warmed up

    Okay, I can do a compression test Monday or Tuesday, should I do the test with the engine hot or cold? I've never actually done a compression test, I've only worked in 4cyl engines and always done leak down test as I thought they were more helpful.
  12. J

    115 v4 2 stroke runs rough when warmed up

    Hey guys, new to this forum and new to boating! I recently acquired a 94 four winns fling with johnson evinrude 115 engine. Im having some engine issues and I'm not sure where to look next. So the first time taking the boat out it performed great, planed oit quickly and nicely, git to about...
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