Just got an AD-10-M Johnson 1956 7.5hp outboard

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,826
Pretty sure it is a mid year model change. Usually small changes.
 

oldybutagoody

Petty Officer 1st Class
Joined
Dec 30, 2011
Messages
207
That makes sense. Thanks. Hey, whatdayaknow, That was your 4,444th post.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
There were several mid-year changes in 1956. One that comes to mind is the gears on the twist grip throttle shafts. The M will tell you what version you have if you need to order replacement parts affected by the change.
 
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