New here. Also new to my brand new 2019 vstar 250. Almost broke in. Sitting at 910miles. Problem with bike is that it sat for a bit. Previous owner just started it once in awhile, also took it to dealer and had the carb "cleaned" out. Saw the receipt and the work was done. But when I put it under load, It will die unless your ready and bring the RPMs up. It rides fine other than. Low RPM load. Also noticed a bit of white smoke expels from exhaust even at idle. Any help this way would be helpful.