Coughing, backfiring ... *UPDATE*

wheelman21 said
Anyone think this could be a carb issue? I'll check the timing and make sure it didn't jump somehow on the chain. The clamp on the dist was tight. I'm just curious if it could be a carb tuning issue, like a cloggled jet.

Just to be clear, a "clogged jet" is not a "tuning issue," but yeah, you may have ingested a bunch of crap into the carb. Certainly worth checking out