i have an MG zr+ 115 it has a mafam thing on it that is adjustable. this was fitted by a previous owner and i have a 'basic' understanding of it.
i opened the bonnet while the engine was running and a frind asked what it was, i gave this brief and basic explanation..... and then he lent over and adjusted it....
anyway, i turned the engine off, but couldnt remember where it was so put it back roughly. but now it feels underpowered and smokes alot :/


HOW do you reset one of these and how do u set them correctly???