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  1. Eric314

    2006 115 HP Mercury runs fine then runs very rough.

    Do you have a bulb on the fuel line? When it starts stumbling give it a few pumps, does it smooth out when you pump it? Mine did on my (admittedly) much different 250 2-stroke, and swapping the fuel ECU did the trick, maybe that’s the fuel module you described.
  2. Eric314

    Mercury 250 XL 2-Stroke EFI ECM Failure - Can replace with similar?

    Ok I got the photos of both. Hopefully they are interchangeable...
  3. Eric314

    Flywheel & Stator Issues

    Agreed, replace both. I‘m not sure if this would apply I your case, but stators can sometimes be rebuilt rather than completely replaced. Might be worthwhile looking into this option.
  4. Eric314

    Mercury 250 XL 2-Stroke EFI ECM Failure - Can replace with similar?

    Seems I’ve lost 2 EFI ECU’s. Both engines seem to run great on original ECU’s till about half throttle, then when pushing to WOT, both engines stumble and reduce rpm significantly. My buddy had a spare ECU from another 250, but the part number is slightly different. I figured it was worth a...
  5. Eric314

    Chris Craft Stinger Transom Repair

    Greetings! I got this Stinger recently, and just dropped it off at a shop to have the motors looked over by a Pro. However... The transom is soft. I removed the inop trim tabs and noticed a few of the screws were baaaarely tight, and was concerned about water intrusion. I drilled a couple...
  6. Eric314

    Help Identifying Mercury 3.0 250HP

    I can’t seem to identify the engines on the boat I bought recently. I was told they are 2001 250HP EFI Saltwater 2-stroke motors. I’m trying to find the serial numbers. The data tags on the transom bracket are gone and I did not see one on any freeze plugs on the starboard side of the engine...
  7. Eric314

    Dual Outboard Trim Synching

    Greetings! New member, first post. I bought a project boat, a Chris Craft Stinger 314 whose repairs required to splash her are nearly complete, Yahooo! It’s got a pair of 2001 Mercury XL (I believe) 2 stroke 250 outboards. Ive never owned a twin engine boat before and would imagine that being...
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