Well, by dawn's early light I've noticed two things. First of all, my Evinrude may well be a Johnson. I did, however, copy that model number directly from the engine. Althogh the carburetor is in my shop, the rest of the engine is about 30 miles south of here along with the boat. So the Evinrude v. Johnson issue defers to another day.
More importantly, however, there is a welch plug present, and behnd the welch plug was some crud that smelt of carburetor cleaner. There is some mechanical damage that looks like an earlier botched removal of the welch plug and I doubt that I can remove any component w/o considerable damage to the soft, brass parts that are looking out at me. And looking necessary to mid range running.
I do remember the DPO (distinguished prior owner) mumbling something about "the carburetor may need cleaning". Could be he knew more about that carb than he let on.
(No accelerator pump, AlTn. I think the 15hp version may have one)
I may be soon in the market for a carb.
lol