Choke plate doesn't move

ba_50

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31p977 0575 e1
The choke stays on no matter where the throttle lever is.
What did I do wrong?
Thanks
Bob
 

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ba_50

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Yes
Even if the choke lever could go farther, the lever on the carb can't go anywhere.
Maybe I put the spring on backwards?
 

StarTech

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No you didn't do anything wrong. The problem is the plastic choke shaft in the carburetor is sticking. They do swell sometimes. The repair will require removing the carburetor so the choke shaft can be removed. Then using fine file or sandpaper rework the two parts of the that goes through the bushing holes of the carburetor just enough until the choke freely rotates again. Note don't over do it or get the shaft out of round.
 

ba_50

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The spring wasn't on right but seems ok now.

It only runs at lower speed unless I add some choke. Looks like a carburetor bath tonight. The choke shaft was very tight. Some white seemed to free it up.
Didn't know the shaft would swell.
 

ba_50

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Meant white grease
 

slomo

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Meant white grease
Well, at least it might catch some grit going into the engine. Never heard of greasing a choke plate but my ears are open.

slomo
 

slomo

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No you didn't do anything wrong. The problem is the plastic choke shaft in the carburetor is sticking. They do swell sometimes. The repair will require removing the carburetor so the choke shaft can be removed. Then using fine file or sandpaper rework the two parts of the that goes through the bushing holes of the carburetor just enough until the choke freely rotates again. Note don't over do it or get the shaft out of round.
As StarTech said, some carbs especially Chinese carbs might need some tweaking. Tooling gets dull and holes are not proper and so on.

slomo
 

ba_50

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I greased the bottom of the choke shaft.
The valves were adjusted at .004".
Checked again and the cap at the rocker arm was off.
Those two bolts were tight.
Cleaning the carb didn't help.
 
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