Choke difficult to close

[rollingpinz]

Over the last month, it has become more difficult to push down the choke knob. Everything runs normal. I disconnected the choke arms from the cable. The cable moves easily. The choke levers move, but I’ve never turned them before so I can’t make any comparisons. The amount of force required to turn them is equal. When I turn them, I can hear a clicking sound. The sound is the same for both. Is there an adjustment or is it more likely that I will have to replace worn parts?

[whitesik]

Is the "choke return spring" still good?

[whitesik]

part 5

[rollingpinz]

Yes. The return spring is good. I should have included that.
It looks like the choke is a disk with holes that rotates like a faucet cartridge. I’ll try opening one to see if there’s debris in there. It may even be that the edges of the spring wire are snagging and causing the clicking sound.

[rollingpinz]

So I took off the choke(starter valve). The leading one had some burrs on the edges of the openings so I cleaned that up, I put a drop of oil on the disk so it would spin more freely, and I put a drop of oil in the middle of the disk because it rides against a spring and I noticed it would stick on the shaft at an angle. I figure this would help ensure it stayed flat against its mating surface.
I, also, removed the cable and sprayed brake cleaner until it ran out the other end. Then, I blew it out with an air chuck and added a few drops of oil.
When I put it all back together, the knob pulls and pushes smoothly. I get it was a combination of resistance.