Evinrude 15HP help with model number, missing plate

[chetsteadman]

Can anyone help my ID the model number on this 15hp Evinrude I picked up? Would like to get it running and need to order the correct parts. The model number and serial number plate is missing. Based on some googling I think it’s a 1975?

 

[FuzzyGrub]

Welcome to Tin Boats. I can only say it looks like 70’s era Evinrude. Others will have a better idea, but there will be a broad range of years that parts will fit.

 

[Crazyboat]

I had a 74 Johnson, looked near exactly the same as I remember it, I'm sure not much changed on them in the half dozen or so years surrounding it.

 

[nytebyte]

Parts from 1974 to 1976 will fit it. Looks like it still has points so 1976 or older.

 

[LaqueRatt]

I don't know for sure, but in my researching motors recently I've read that there is a plug on the motor that has the s/n on it.

Attaching a couple pics of my '75 9.9 for reference. Think it's basically the same motor.

 

[LaqueRatt]

Thought I should mention that these motors are notorious for having the upper thrust mount go bad. It's a rubber piece hidden inside that you can't see. Hard to find, not real easy to replace, and a used one if you can get it will likely set you back over a hundred bucks. Info here:

Maintaining Johnson 9.9 Powerhead/Gearcase

 

[Sea Antsy]

I don't know for sure, but in my researching motors recently I've read that there is a plug on the motor that has the s/n on it.

Attaching a couple pics of my '75 9.9 for reference. Think it's basically the same motor.

somewhere on the side, on a vertical surface of the block there is an aluminum disc about the size of a nickle or a quarter that has the model # stamped into it..
I always thought it was a freeze out plug ???

 

[Duro]

I don't know for sure, but in my researching motors recently I've read that there is a plug on the motor that has the s/n on it.

Attaching a couple pics of my '75 9.9 for reference. Think it's basically the same motor.

I have a ‘79 evinrude 9.9 that looks identical to yours & I believe you’re correct that the 15 h.p just has
a different carb . Some guys use to swap carbs out for lakes that had 10 h.p max rules.

 

[Tall Tiller]

Looks like a 1975, I have that motor as well.
Model # 15504C Serial # begins E001*****

 

[chetsteadman]

I don't know for sure, but in my researching motors recently I've read that there is a plug on the motor that has the s/n on it.

Attaching a couple pics of my '75 9.9 for reference. Think it's basically the same motor.

I have heard this as well, didn't find anything like that on the inside. I will look again. Ordered a carb kit and fuel pump for a 1975, will see if everything is as it should be.

 

[Smokey101]

There is a Welsh plug on the top rear of the motor that has the model number on it

 

[Pappy]

And if you don't find the "Welsh" plug you can always find the Welch plug. Usually located on the top of the cylinder and crankcase just inboard of the cylinder head.
Who did you order parts from. OEM or?

 

[Octavia]

Looks like a 1975, I have that motor as well.
Model # 15504C Serial # begins E001*****

WoW !! Thats in mint shape SWEET!!