Reelthing wrote on 12/31/69 at 16:00:10:For real, the worst case I've had of running ok goes to crap after it warms up was a sticky slide - in my case cause by a greasy finger prints - formed a little ring at the bottom, after the carb warms up the metal expands and the slide would hang/drag going back down - of course if your sucking a little through the vac line it'll sure go rich.
Rich is definitely the issue, but I took the vacuum line out of the equation yesterday. It was dry but I plugged the carb nipple and let the tube just hang there for now.
The wife's little "Oh yeah..." is the key. One thing that I did yesterday was to remove the baffle and it was very sooty...this after I had switched the main back to a 155 a couple weeks ago..
I do know that I've followed Julie on a couple occasions when she had forgotten to turn off the choke. You can smell a rich running bike if you are following.
SO, I'm gonna go back in the carb and check the low speed jet, the slide, and the main jet (as some of you mentioned, too)