hi jumpin, the carn is very hard to find parts for, floats are non existent, as i found out. make sure you look after the carb. I though form the first thread you sent sounded like the choke, if your in doubt get fiat or a garage to fine tune the choke, you will have to make sure its perfect any way for the hydrocarbon tests etc for ur MOT. i find the carb very tempremental and hard to tune.
Chris