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Johnson seahorse 15

S

sawsmith

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"Hi Folks - Can anyone tell me

"Hi Folks - Can anyone tell me if there are any other distinguishing marks on an engine in order to identify it's year/model etc. The serial no. plate is missing off mine. Thanks

131126.jpg
Johnson seahorse 15 - 01"">

I hope that the image above helps. I do have some others if not."
 
"i'm guessing late 80'

"i'm guessing late 80's,early 90's....look on the engine for a nickel sized plug,and see if it has nimbers on it."
 
Thanks jwb. I have seen the pl

Thanks jwb. I have seen the plug and will get you the details a.s.a.p.
 
"Simple really , the decals on

"Simple really , the decals on the hood indicate that that part is 74.However those motors were green.White did not start till 77. So what have you got???A motor with an older hood or an older motor with a " newer " paint job.Post a picture showing the block with details of the cylinderhead ( both sides ) and the ignition coils, so I / we can figure it out."
 
"Thanks. Pictures attached
<[


"Thanks. Pictures attached
145332.jpg
Johnson seahorse 15 block - 01"">
145333.jpg
Johnson seahorse 15 block - 02
 
"Numbers on nickel sized plug

"Numbers on nickel sized plug are: B20141, then underneath: J15BAC15.

Many thanks to all so far."
 
"Well it is NOT a 74 model, at

"Well it is NOT a 74 model, at this time I have not found the model # to mean anything."
 
Message to London Marine - Wha

Message to London Marine - What about the cylinder head and coil solution that you spoke of earlier?
 
I mentioned that it was not a

I mentioned that it was not a 74 as the early ones had a different coil setup.The later 77 and up were all the same in that regard.The correct model # is essential!!!
 
"Hi, I am rebuilding a Johnson

"Hi, I am rebuilding a Johnson Seahorse 15 motor for a friend. I have come to a grinding halt as I do not know what year it is or have a wiring diagram. I need to know what year and model it is. I have found these #s J15RCSD and 66 55 81. Is any one able to help? We unfortunately do not have a credit card and information here in NZ is sparse. Cheers Ian"
 
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