I have a 1977 85 hp Johnson. Like anything that is 30 years old it takes a second to start. It cranks and dies 3 times then it will purr like a kitten. My question is just after I get going off the initial running after start up I'll have what feels like a miss. That's the only time this happens about 30 seconds into the first throttle up. It runs like it's suppose too the rest of the day. Could this be from the cold natured or the extra gas in the carbs. from the cranking procedure? I don't think its anything to worry about as it only does this just after the initial get going.. Just your thoughts.. I rebuilt the carbs back during the summer as well put all new gas lines as well primer bulb. Installed new plugs and decarbed the engine and cleaned the gas tank out.

What you describe doesn't sound like a problem to me.  It's not uncommon for those motors to be rather cold natured.  Normally you can bump the choke as it starts to die and it will catch up.  The slight miss you feel could easily be where gas has puddled in the crankcase from the enitial start and wet fouling a plug until it cleans that gas out.   Those old choked motors can actaullly be a real pain when cold, sounds like yours does fairly well.

I was thinking that Way2slow but everytime I hear that miss it makes me cringe a bit