How easy are your mufflers to remove? If you have fiberglass packed mufflers, the moisture will sit in them and as they heat up they will steam more and more until its cooked out. Same with oil and such try pulling them and running it if you can to see if it clears up. And if you have single exhaust it can also point to which side to further check if you separate the y pipe. You can try a compression test and see if there is a weak hole, and look at plugs for contamination. Don't give up on it on yet!

 

I'm running straight pipes, true dual exhaust. The whole thing that got me thinking maybe it isn't a head gasket is that both pipes are producing the same amount of smoke. I still need to rule out leaking carb, other reasons for unburnt fuel, because the smoke smells more like gas than coolant. I'm not real good at deciphering odors though.....

 

Use a clear, clean Mason jar. Let the smoke fill the jar for about a minute, then close. Let it condense.
If it is coolant, it should be noticable.

And as Mudsport stated, any oil, coolant in the exhaust may need to fully burn clean if it's collected a sufficient amount of time.

What does the oil look like now?

 

This may be part of the issue. Not sure why this would happen after less than a year, but it looks like the rotor is toast. I cleaned up the contacts in the cap and replaced the rotor with one I had on the shelf. Between that and tightening the intake bolts, things are much improved. There is still a little bit of smoke though.


To address some recent comments, this happens even after driving long distances. This is not an issue that happens just at start-up. It is not moisture or oil or whatever burning off first thing in the morning. I could drive 100 miles and it would still be there.


I will take MudSport's advice and collect some smoke in a jar and see what I can determine. It still smells strongly of gas (and my new oil looks clean after 30 minutes of idling) so I'm leaning towards leaking carb or failing coil at this point...seems like unburned fuel to me.

 

Sounds like you're on the right track.
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That rotor looks as if it is hitting the cap... Is there play in the distributor bushing at the top of the shaft? This can be checked by wiggling the rotor side to side and also check up and down play