I have a dry sump 1997 XR250 Baja, with a Baja tank. When it runs out of fuel, I change it to reserve and it works as it should. But I have noticed that once reserve runs out, I still have about 1 litre of fuel left in the tank. I have actually just had the tank off and drained. I put it back on, added about 1 litre of fuel and it isn't enough to leak even a drop into the filter. The only thing I can think of is the following although it still doesn't make sense to me. The bike was made as a Baja although it had an XR tank when I got it. I bought a Baja tank now so the fuel ****(cok) and in-tank filter are from the XR tank. Although the Baja tank is much bigger, you would still expect that the fuel ****(cok) should still pick up the fuel from the very bottom of either tank. Anybody else with a Baja have this happening?