Thought I would try and get.... My van smother to run no issues for some years but always a bit erratic. Low and behold been messing about for ages and couldn't understand why idle good then erratic....and noticed bya chance . A hole going to a brass rod that's connected to flap on carb that was flopping about making the carb flap go erratic...????? Looked on other carb and seems something is missing a kinda brass cap type thing but has no thread or way of being inverted I can see ,,,,anyone know what it is and how to fix it???? When I put a screwdriver on the road for a bit of weight the flap stops flapping and engine runs smoooooooth. Sent from my SM-T585 using Tapatalk