==SOLVED==

Just made the final adjustment to my choke and got it working perfectly a few days ago. Except it now seems to stick and won't shut the flap properly or set the high idle after pumping the gas.

I sprayed some carb/choke cleaner around the linkage and the carb but to no avail.

Any ideas?

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Nevermind, I figured it out. It was just a simple matter of cleaning in all the right places, like the primary choke link for example. That bit was so gummed up I'm surprised it worked before.

 

Did the adjustment back off? In other words, there has to be tension supplied to the linkage to shut the choke plate and engage the fast idle cam. Tension that's supplied by the choke's bi-metal spring. If it's slipped back (the 3 retaining screws/spreaders didn't hold it in place like they should), it'll naturally try to back itself off every time the choke cools and the tension ramps back up.

Other than that, you're down to physically looking at the linkages to figure out where things might be hanging up/binding. They were designed to work properly without lubrication and with a pile of road grime on them, so it would be unusual for them to hang up just from a few days of real world use.

 

Incredible timing Damon. Just figured it out and edited original post already.

Checking the adjustment was the first thing I did after cleaning the bits, and it was still set where I had it. The problem was that I didn't clean all the right places, and the primary choke link had years worth of grime buildup. Once I removed that it worked like it should.

 

I recently rebuilt mine, I added a thicker spacer, After the rebuild it still back fires some. That let me to believe its the choke or I need bigger jets since I added thicker spacer?
Any suggestions?