Hi, in advance: Two years ago, I got a Bandit 650SA with more than 100T km and probably put a pretty egg in my nest. To the background: The machine is currently in the workshop for carburettor cleaning, however, several things gradually turned out, so that I have interrupted the work now. In particular, the carburettor causes trouble: During the cleaning it turned out that the gas slide membranes are close to the Exitus. Since the Mech aniker suspected finding even more things due to running performance, he didn’t want to give me a price for the work, so I have interrupted the whole thing now – the narrow wallet needs planning security. Now I need advice on how to proceed: 1. Does anyone of you know if there are the gas slide membranes for the GSF650 (WVB5) individually / as a four-replacement – or only with pistons? Unfortunately I did not find any membranes as individual parts for the GSF 650, only for the GSF1000 od I found an original part number only for the part with pistons (4x:82 € = 320 €; 13500-31F00-000)http://www.bike-parts-suz.de/suzuki-recherche-bike-pieces_nn.php?… 2. Do you have an opinion on the purchase and installation of a used carburettor with low mileage? (part price < 300 €) Is this not recommended or not at all at all, what could be feared? 3. Is the investment still worth or is it to be feared that s the whole becomes a savings box that clearly exceeds the value of the machine (purchase price 2600 €)? Thank you very much for your feedback! VG Bandito