Last winter I had a mechanic work on my 3510 skid steer. It worked decent but ,I had to play with the choke regularly. This spring it has started spitting and sputtering when I want to work it. Sometimes it works well and then it starts blowing back through the carb and/or the exhaust( I know this because I have a hole in the exhaust). I have found if I stop ,it allows the engine to catch up. Usually it starts popping again when I work it.
Any suggestions
Any suggestions