I need help adjusting the idle....
In the first pic what do these two screws do?
and in the second pic what does this screw do? its on the front side of the carburator
also when i turn on the air conditioning the idle fluxuates up and down
In the first pic what do these two screws do?

and in the second pic what does this screw do? its on the front side of the carburator

also when i turn on the air conditioning the idle fluxuates up and down