Hi,
I replaced all my fuel hoses. The only thing to make sure of, other than getting the correct size, is that the hose is suitable for petrol. You probably know this but better to be safe than sorry eh?
I used standard black hose for the petrol tank to carbs and the 2 hoses on the centre of the fuel feed line on the carbs themselves. For the overflow lines on the carb bowls I used a small bore transparent yellow hose that looks quite neat that I found in a local garden machinery supplies shop.