MC 2150 idle issues

[Cjordan]

Hey guys bout got my jeep squared away again, but now I'm having a different issue that I'm hoping y'all can help with. I rebuilt the carb here a while back and I've noticed that I can set the idle at 650-700 take it for a spin and all the sudden it idled at 1000rpms. I can adjust the screw and bring it back down to
650-700 take it for a spin and same thing it idles at 1000.
Three times I've had this happen to me. Just wondering if anyone else had had this issue? I've searched the web a a little bit but haven't found anything

 

[Lumpy Grits]

Vacuum leak at the rear base of the carb I bet. Common issue....
While run'n-Spray that area with VERY soapy water. Does the engine pitch change? Do you see the bubbles get'n sucked inside?
Also, Check ALL of your manifold bolts.
LG

 

[cglax6]

Either that or the throttle isn't returning all the way. Sticky throttle cable or gummy levers.

But my money is on the vacuum leak.

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[Cjordan]

Thanks guys looks like it'll probably be raining most of the day today so it might be tomorrow before I can check it out. Soon as I check those things I'll report back. Again thank you all for the help