I have a 17 hp kohler v-twin mounted on my giantvac leaf sucker the carb has been completely rebuilt put back together new gas fuel filter fuel lines spark plugs everything for a basic service. When the suction hose is off and the door in closed the machine runs great. but as soon as you open the door it bogs down and runs like crap. I dont know if it has something to do with the electronic jet on the carb or if it is something else. thanks for any help.