Re: 1957 Johnson 10 HP

[chris-p]

After reading your descriptions of what you need to do to keep it running, Im not sure you don’t have an issue in your carb, like the float stuck partially down, etc… If you primed your carb, it should fill the bowl, and you should be able to run almost a minute on that alone without constantly priming it with the bulb. Since you do, I don’t think your carb bowl is totally filling up.