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  1. M

    Mercury 40 Surging

    So, I had a post in here about my Merc 40 not firing on 2 cylinders, found a used stator, switchbox, and trigger, swapped them out & it fires on all 4 again. Much more power in the water & doesn't stall now, but there is still another issue. When running on the water if I push it to full...
  2. M

    1990 Merc 40 won't start

    Okay, theres a bit of a story behind this so bare with me. As the title says, I have a 1990 Merc 40, 4 cylinder 2 stroke. I just recently finished rebuilding the motor, in the process of rebuilding I took out the driving gear for the oil injection & now mix it 50:1. After finishing the rebuild I...
  3. M

    What keeps proper firing order?

    Hey, I'm back with another question, since I'm new to outboards & 2 strokes in general I'm wondering what part of the engine provides the firing order on my 1990 Mercury Classic 40 HP outboard? Basically said, what acts as the distributor to maintain order?
  4. M

    Crankshaft End Cap Bearings Spun

    Hey, I just acquired a Mercury Classic 40 - Oil injected, it's a 94 or somewhere around there 2 stroke 4 cylinder. I got the motor with a boat for free through family, but the boat had sunk with the motor on it a few years ago in salt water. They flushed it out from my understanding, but it was...
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