Being that we (in the states) never got the SV400 here, you'll be lucky to find anyone here with that information. try over on www.sv650.org or www.svrider.de, as they may have more information on this.
It wasn´t sold in Europe either, so...
We had discussions over here as well and the general consensus was that the SV400 is mostly identical to the first gen SV650 (even motor dimensions), so the tank should be the same.
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