Welcome. the hesitation is from a restricted slow speed running jet partially clogged. it probably won't get better. Just get a manual,disconnect the battery, pull the carb, remove the float bowl carefully,pour out the gas from inside the carb into a clean pan (don't smoke), unscrew (1) brass jet a ta time, and blow with compressed air-or- a brass wire strand from a wire brush (pull one strand out with needle nose plier) run this wire strand through the tiny hole in the jet, use an aerosol can of compressed air for computer/cleaning if you don't have access to an air compressor. It is usually the smallest dia. brass jet inside the lower cavity of the carb. re-assemble. I assume no responsibility, but if you take your time, use the manual, you should be running good again. This should take about 1-1/2 hrs time to do.