Sirrobbythe5th
Contributing Member
Hello folks, I recently purchased a 1971 evinrude 25hp sportster and the motor appears to be in great condition. Since the first time I took it out it has been running extremely rough. Almost as if it has fouled fuel, improper fuel=oil ratio, bad spark plugs, or like its being choked out. So I got a new gas can, new hose, inline filter on the hose, new fuel, oil, spark plugs. And it STILL ran rough. So this time I took off the carb in hopes it was a gummed up bowl. Took off the carb to rebuild it and it looks brand new like its recently been rebuilt. So i put it back on, still running like crap. I then took a look at the coil under the flywheel and it looks brand new also. The points and everything looked brand new!!!!!!!! Im stuck here, any ideas? could it be something as simple as timing, or adjustment on the carbs??