I have a 1953 Evinrude 1HP Outboard on my 1962 Dorsett. Its start, runs , and idles fine for the most part. It goes into gear good and runs great a low speeds, but as I increase the throttle, the motor will kick, or jerk intermittently. Sometimes it start immediatly, sometimes after five minutes. It seems to only happen when the throttle is past 1/4.
Any ideas?
Any ideas?