Home › Forum › Ask A Member › 1961 Johnson JW won’t run › Re: 1961 Johnson JW won’t run
After re-reading your post. I saw that you stated that it would run for a short period but only at wide open.
Motors that have not been run in a long time or have been kept outside or in open covered area are prone to having wasp nest clogging up the exhaust in the leg. This restricts or prevents good air movement in and out of the crank case and power head. Make sure you remove the lower unit and inspect the upper exhaust leg with a flashlight.
If all is clear, then poor fuel delivery could be due to rusted, broken, stuck reed valves or piston skirt damage causing poor negative crankcase pressure. When you removed your carburetor did you see any rust or coating of rust leading into the crankcase?