Search results

  1. H

    1995 Mercury 25hp 2 stroke issues

    I have not but (lucky me) this is the electronic spark advance model. I will start with greasing the little linkage first. I have read some of the manual on how to check the timing but it seems like there is minimal adjustment that can be done. It seems like the CDI box controls most of it. With...
  2. H

    1995 Mercury 25hp 2 stroke issues

    No need for a tongue in cheek comment. I appreciate the input but as I stated, these are all brand-new parts to the tune of near $200. The carb rebuild kit (with fuel diaphragm gaskets, new primer ball and spring, etc.) was not cheap. That alone was $150 with shipping. At this point, I imagine...
  3. H

    1995 Mercury 25hp 2 stroke issues

    With all due respect, in my initial post I put compression figures. 125 psi on both cylinders and that wasn't with the WOT even that the factory service manual suggests which should push it higher. Carb was completely rebuilt with OEM parts (not cheap), per the factory manual. Float setting...
  4. H

    1995 Mercury 25hp 2 stroke issues

    Update: Put fresh plugs with proper gap in. Checked plug wire connections. Also put a new t-stat in because the other seemed potentially defective. Still having the same issue: Bogs and stumbles accelerating after idling for a while. After running WOT it's fine and accelerates well but if it...
  5. H

    1995 Mercury 25hp 2 stroke issues

    I'm using the stock NGK plugs at the moment. I don't know that I want to go one hotter because if anything it's just masking another issue. I will do that test and report back.
  6. H

    1995 Mercury 25hp 2 stroke issues

    I am new to the forum. I have a 1995 Mercury 25hp 0G157267. The motor is in great shape for it's age. It's used mostly for duck hunting here in NJ from October-January. Being an older motor, I went through a bunch of items: new water pump, carb rebuild with OEM parts, new fuel...
Top