Got this 1973 Evinrude model 25302A outboard and I was told that it runs poorly at idle and it seams to be running on one cylinder. The motor is currently running on one (bottom) cylinder. I changed the spark plugs and made no difference. When I take out the top plug, it is fuel wet and the bottom one is dry. I did an ignition test and got very good spark. The compression is 110 pounds. I tested all the ignition parts, coils, charge coil, etc. All is good according to the manual. I even replaced the CD unit, thinking it was the problem, but as usual, it made no difference
One thing the motor does, while it is running, every so often it will fire on the top cylinder and get a nice large puff of smoke. I even took off the carburetor, cleaned it out, but it did not make a difference also. While the carburetor was off, I did my best to look at the reeds and they too looked good. Has anyone got any suggestions?
One thing the motor does, while it is running, every so often it will fire on the top cylinder and get a nice large puff of smoke. I even took off the carburetor, cleaned it out, but it did not make a difference also. While the carburetor was off, I did my best to look at the reeds and they too looked good. Has anyone got any suggestions?