Thanks to all who have responded about my Evinrude 4hp outboard. What I did in the end was, following advice from the web, to clean up the carburetor, and to replace the points, coils, and condensers in the magneto. I got much better power at max throttle now, even able to create a small "wake"...
What concerns me the most now (and it did concern me in the past as well) is the fact that the motor produces a *lot* of smoke through the exhaust. I have another, older (1946 vs. 1982) Johnson 3hp, which runs 24:1 versus 50:1 oil mixture, and the amount of smoke was never nowhere near as much. Also, when coasting with the motor at idle, and in neutral (so I can see the water surface), I can clearly see the motor leaving a trace of oil/fuel on the water surface, which I think comes from the exhaust. I suspect it is running way too rich the fuel/air mixture, and there is unburned fuel in the exhaust. This seems to be confirmed also by the fact that it never starts or runs with the choke pulled, but, with it in, it starts right up, even when cold. Does anyone know where is the high speed jet nozzle, so I can adjust it? What I thought was the high speed nozzle was accessible only after removing the carb bowl, and it was an assembly that looked like a long brass screw with two holes in it and a hex head, and at the top of it it had a smaller screw. How are these two screws supposed to be adjusted? The low speed adjustment screw did not seem to do anything when turning it around, until completely seated, when it cut the motor off (I think, can't quite remember). Or any other suggestions? Thanks, Andrei. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
