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  1. C

    1998 90HP Evinrude Problems!

    First off. Thank you so much for all the help this far!!! Alright so I have no problem doing this myself, more so just need guidance on how to proceed. Am I going to have to pull the block and get it bored and redo all the pistons? Only fixing one will cause an imbalance correct? As far as...
  2. C

    1998 90HP Evinrude Problems!

    Is this salvageable? Or worth salvaging? Bought the boat (170 sunbird with trailer) for $2500. Small piece of the floor and seats need to be replaced, tach needs replaced, and now the motor issues. Don’t want to go down a rabbit hole of cost. Suggestions and opinions are welcome.
  3. C

    1998 90HP Evinrude Problems!

    If you look closer that’s not carbon, that is pitting, burrs and gouges in the metal on the head and on the piston.
  4. C

    1998 90HP Evinrude Problems!

    Alright just didn’t know if the previous owner running this thing without spark had anything to do with it.
  5. C

    1998 90HP Evinrude Problems!

    So is this something that just happens over time? What caused the piston and head to get so beat up? Could this have been due to the lack of spark (due to broken spark plug wire) to this cylinder?
  6. C

    1998 90HP Evinrude Problems!

    So obviously the rings are shot, but with that piston and head so ate up and gouged, aside from a new piston and head, should I have to take it to a machine shop and get that cylinder bored? There is some wear markings in the cylinder but no gouges.
  7. C

    1998 90HP Evinrude Problems!

    Pulled it apart and was not happy...
  8. C

    1998 90HP Evinrude Problems!

    So just tested out my compression gauge, it is not calibrated. My compressor set to 135 is reading 75 on the gauge. So in assumption the motors compression should be a lot higher than the indicated 60-64 range, but that still means the one cylinder is reading about half the others
  9. C

    1998 90HP Evinrude Problems!

    Is there PDF versions of the manuals floating around anywhere?
  10. C

    1998 90HP Evinrude Problems!

    I really appreciate the fast responses, thanks guys. I will post with any new findings.
  11. C

    1998 90HP Evinrude Problems!

    I was going to try and get my hands on an inspection scope first, but I may be looking at just pulling this thing apart either way.
  12. C

    1998 90HP Evinrude Problems!

    This is what I was afraid of. But would the motor still run and drive in this condition if it was totally fubar’d. Also, what does a replacement 90-115 run? Is it more financially wise to just get a new motor?
  13. C

    1998 90HP Evinrude Problems!

    I have heard these terms, but not sure on the actually meanings, it is a E90TSLECM, if that explains anything. And I figured 60 is not good, but also this is being tested with a Amazon gauge. I’m going to check it with my air compressor tomorrow to see if it is accurate
  14. C

    1998 90HP Evinrude Problems!

    So this is a broader thread due to my lack of knowledge with Outboards, my stubbornness with not taking this to a shop, and the plethora of issues I am trying to resolve. I grew up with boats but never owned one myself. I am pretty familiar with the mechanics of cars, but boat life is new to...
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