p220 on a 520HC Nikki 6100 146 414 Carburator Question

[westkane 1]

Based on what you folks said, I am in the process of cleaning the carb to see if this helps with the governor cycling.  I have a question about my carb, it appears to have an open "port"  above the idle jet.  Should this have a plug over it, or is it to be open to atmosphere?  Please see the attached pic.  Thanks   

[JackC 616]

Looks like there is a welch plug missing over the hole above the plastic limiter cap.

[bewford 21]

Did you get this fixed and did it cure the surging

[westkane 1]

Thanks to you fine folks, the cleaning the carb did the trick, it now runs like a champ.  The deck is scalping on the right side so now I have to figure out why that is happening and how to adjust it.  I made sure that it was clean underneath last night, but its still doing it, right side only.  Putting a level on the deck, it doesn't seem to far out of level, but maybe it just takes a tiny bit of tilt to cause scalping.  Thanks to all

[WVMountainMan 6]

What size deck are you running on that unit?

[bewford 21]

Did you find the welch plug on the motor or did you have to get a new