My Etec 250 HO has started to leak some fuel out of the exhaust.
I noticed it is worse at a cold start then after warming it is hardly noticable....but still there.
When cold you can see it come to the top of the water as small drops then it expands on the water surface leaving a slick.
After warming up and running a couple of times....it's only a small patch of it noticable.
Any ideas what may be causing this issue ?
My engine mechanic found the issue......engine running cold on one half of block.
Took thermostat out and it had a small piece of wood under it causing it not to seat correctly thus making one half of the engine block run cold.
Made sense since it did not leak bad at all except for 1st / cold start in the morning.
Glad to hear it was a quick and reasonable fix
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.