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  1. 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...
  2. 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
  3. 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?
  4. J

    115 v4 2 stroke runs rough when warmed up

    Did a compression test all cyl between 118 and 121 psi
  5. 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
  6. 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.
  7. 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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