I purchased this mower and I've got a problem keeping it running and long as I spray carburator cleaner in the carburator it runs and it use to run only when the choke was close but that doesn't work anymore. Also the motion of the mower is jerky while in motion in any gear above the 2nd gear. Can you help me with this riding mower, please?

Remove and clean carb or replace
Also if there's a fuel solenoid on carb check that