I have a johnson sea horse model #MD 20<br />ser #430273 I think what year and hp
S stickboy Cadet Joined Jun 4, 2005 Messages 13 May 12, 2006 #1 I have a johnson sea horse model #MD 20<br />ser #430273 I think what year and hp
O ob Admiral Joined Aug 16, 2002 Messages 6,992 May 12, 2006 #2 Re: johnson sea horse what is it Hey potbelly,MD-20 is listed as a 1941/42 1.5 hp.
