Johnson HD 25 coils

[greg-o]

This is a trial.

<a href="http://s1382.photobucket.com/user/Greg_Offenback/media/Mobile%20Uploads/20151024_130326_zpscvylvtkx.jpg.html&quot; target="_blank"><img src="http://i1382.photobucket.com/albums/ah241/Greg_Offenback/Mobile%20Uploads/20151024_130326_zpscvylvtkx.jpg&quot; border="0" alt=" photo 20151024_130326_zpscvylvtkx.jpg"/></a>

[chris-p]

Well, I don’t know what to make of that.

By the serial number, it should be a 1946. 1946=491737 to 538800

However, the model number pegs it as an earlier model, ie the HD 20 was the HD25 in 1946.

So, I dunno

[Mumbles]

quote Greg O:

Can I post pictures directly or do I need to be a member to do that?

Of course you can post pictures here!

Just copy the ‘IMG’ code on your Photobucket page and paste it anywhere in your post.

[frankr]

quote Chris_P:

Well, I don’t know what to make of that.

By the serial number, it should be a 1946. 1946=491737 to 538800

However, the model number pegs it as an earlier model, ie the HD 20 was the HD25 in 1946.

So, I dunno

Probably had something to do with WWII. HD-20 was made till the war shut down outboard production in 1942. Then at war’s end, the 1946 HD-25 was born—probably using a bunch of pre-war parts stored in the warehouse. That could also explain the presence of the spark suppressors I’ve been talking about.

[Tubs]

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

• This reply was modified 6 years, 3 months ago by Tubs.
• This reply was modified 3 years, 12 months ago by Tubs.

[greg-o]

Thanks. I appreciate it.

[retiredoz]

Serial # indicates 1946, last year for the HD-20. The HD-25 was also produced in ’46..

[greg-o]

OK, I am just getting around to getting back to this project. I just bought a magneto plate for a TD 20. Obviously the TD 20 plate won’t fit this HD20 motor. The coils and points are 90 degrees different between the two. The coils should swap out ok, but I am wondering about the Maverick spark suppressor. Should I use it on this motor, which had them, even though according to Johnson, it did not have them? I do not know what magnet rotor this motor has, or which cam. If I need to use the spark suppressor, which condenser should I use. I really hate soldering anymore than I have to on these coils. I will use a soldering gun with minimum heat, just enough to melt the solder. I figure if the spark suppressors are not used I would use the condenser that goes with that coil.

I really appreciate everyone’s help on this project. I think it will make a fine little motor. The original paint and decals are in good shape for it’s age.

[frankr]

The spark suppressors under the coils support the HD-20 model number.

[greg-o]

Frank are you saying if I use the coils from the TD 20 that have NO spark suppressors, I should use the spark suppressors on this HD 20 motor? And which condensers should I use?

[Author]

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