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  1. K

    1997 Mercury 150XL - compression.

    Faztbullet - what is this error you are referring to?? How can I avoid it?
  2. K

    1997 Mercury 150XL - compression.

    The rest of the motor looks pretty good.
  3. K

    1997 Mercury 150XL - compression.

    Here are a few pics. I haven’t gone past this point…….yet.
  4. K

    1997 Mercury 150XL - compression.

    Thanks all. It’s the top left cylinder……. Looking at the engine from the back (port side).
  5. K

    1997 Mercury 150XL - compression.

    I have no clue - bought the boat 2 Fridays ago and this is what I got. I didn’t do a compression test - but the rig was not expensive at all. And I know it was a project - just didn’t expect the motor rebuild to be part of the project.
  6. K

    1997 Mercury 150XL - compression.

    I’ll update and a couple more nights of sleeping on it.
  7. K

    1997 Mercury 150XL - compression.

    Thanks QBhoy. I figured if rebuild this one - it will be a full rebuild.
  8. K

    1997 Mercury 150XL - compression.

    Understood - I’m a bit new to outboards - but very mechanically inclined. It’s just seems off that only 1 piston is shot - I mean shot. It’s loose in the cylinder walls and piston is crumbling at the top - so don’t know if the rest of the internals have damage due to metal most likely went into...
  9. K

    1997 Mercury 150XL - compression.

    1997 Mercury 150XL - one piston totally shot. 120 psi on all other 5 pistons. Am I SOL or is it worth the time and money?
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