Another Johnson age question.

[James Leslie]

I just bought an older Johnson 20 HP motor. I've been looking at all of the info on this site about determining the year and model, but I'm still stumped. I cannot find a model number anywhere on this thing. There are a couple of holes where I suspect the plate that had the model number was (underside of motor). I believe the serial number is J3251182 (from a round plate on the right hand side). Any help would be appreciated.

 

[steelespike]

Re: Another Johnson age question.

There may be a number on a welch plug(freeze plug)<br />on the power head.