Search results

  1. M

    Piston Destruction! Trying to figure out the cause...

    Hi - My 2000 25 hp Merc 2 stroke developed severe problems after a 15 minute run at ~4700 rpm. Wouldn't idle, wouldn't accelerate, etc. A compression test showed 0 psi on cylinder #1 :mad:. I ended up tearing into the PH for a look - and the attached images are what I found. About half of...
  2. M

    Does this Cylinder Block look salvageable?

    Howdy! The subject says it all... The pics are of the #1 cylinder on a 2000 25hp merc 2 stroke (Mercosil block). The edge of the dome is pretty gnarled and there is scoring/grooving on the cylinder walls that I can feel with my fingers, but it doesn't feel overly severe. There's also a...
  3. M

    anatomy of a carb

    In image 1, what are the brass colored vertical tubes called? I can't find a part name or reference to it in the shop manual. Notice in image 2 how the end of the smaller diameter tube is pressed against the outside of the larger diameter tube. In image 3, you can kind of see how the smaller...
  4. M

    Fluctuating rpms and carb rebuild - new info & pics

    I've got a 2002 25hp merc electric start 2-stroke that's been converted from manual to remote (S/N 0T092655). Has been running great since I've owned it, until now. After an extended run at fast cruise speed (roughly 15 - 20 mins @ ~4700 rpms), I dropped the engine to idle for a few minutes...
Top