yes, when you turn the carb over gas should spill out of it because it's coming from the float bowl, directly through the main jet.
the bogging may possibly be fixed by moving the c-clip on the needle down one notch (this will raise the needle, richening the air-fuel mixture.)
usually a bog is due to it being too lean, but if this bog happens at wide open throttle, the only real cure for that is to re-jet the carb. the setting of the c-clip on the needle only helps from idle until about 3/4 throttle. once you hit full throttle, the needle is out of the main jet hole allowing the max amount af fuel through that the jet can supply.
if you are unfamiliar with the c-clip, it's on the top of the needle that's in the center of the carb slide (where your throttle cable hooks up inside the carb).
if it's idling higher, that's because now it;s getting more air with the choke fully open...just turn your idle adjustment screw out until the idle is where you want it.
before you mess with the c-clip (if you are going to) ride it for a bit and see if the bog goes away. the crank case could have a bunch of excess fuel in it.
also, make sure that you don't have an air leak at the intake tube - engine gaslet, or where the carb seals to the intake tube.
with the engine running, spray a TINY bit of starting fluid around the intake - engine gasket and arounf the carb-intake seal. (spray one area, wait, and then spray the other area). if the engine revs up after you spray either of these areas, you have an air leak at the area that you sprayed. an air leak will also cause a high idle and a bog.