Home › Forum › Ask A Member › Demand for Johnson SD20 SD-20? › Re: Demand for Johnson SD20 SD-20?
These are neat motors and pretty strong runners. I have one in my collection along with an SD-15. A friend of mine have me the SD-20 and it didn’t take too much to get it going. It’s a fun motor to run if you don’t mind not having any neutral or reverse, and coordinating throttle and spark advance independently along with dialing in the carb once it warms up.
As was stated above, they’re not particularly valuable and they kind of take the right person to want one. They are significant in the history of Johnson Motors and OMC in that they were the first to use the remote pressure tank system that all the 50s OMCs ended up using. I do like mine, but I don’t run it a lot simply due to the need to row out frim the dock or shore enough to have room to start it and be heading in the right direction. When it starts cold, your plan has to be in place since you can’t just shut it down right away and at 3/4 throttle and advance, you’re on your way. Hopefully it goes to someone that wants it and will enjoy it. Here is a video of mine on the lake.
-Ben
OldJohnnyRude on YouTube