My FE 570 left me high and dry yesterday and I am looking for some thoughts to diagnose before bring into the dealer. I had a 70 degree tank installed a couple of weeks ago and the bike did a solid 180 mile day of riding after with no issues. I came home cleaned the bike as shinny as I could getting ready for the next big outing. New Years Eve I had plans of doing a ride in the next morning so I fill the tank and head into the house to get my gear ready. I smelt fuel coming from the garage so I look around and fuel is weeping from the rear tank a little when its on the side stand so I chalk it up to filling it to full. The next morning I load up and drive out to the meeting spot about 60 miles from home. Still a little fuel smell but the bike starts and runs fine. We take off and do about 10 miles of road and 45 of dirt when we stop everything is good except that my spark arrestor is loose (I lost one on the ride before) I tighten it and we take off. After about another 4 miles (if that) I start loosing power and the bike starts surging and more power loss. I pull over to see whats up but see nothing out of the ordinary except my spark arrestor is gone (again) . It will start for about 5 seconds and die, again and again. I check the breather lines of both tanks and they are good, the plug seams fine as it sparks and starts fine. I add about a ½ gallon of fuel to see if the rear tank is not getting fuel to the main but the main has plenty of fuel. I take off and try the other mapping with the switch but after about 2 more miles I pull over as the bike is done. The end cap on the exhaust it warm and getting dis-colored meaning the bike is running lean. Another rider comes back and helps out and we take the fuel filter out of the tank and check some other things but it is a no go. I ended up having to get towed back 35 miles to town and now the bike is in the garage. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o> I have read of some fuel pump issues but nothing specific on the 09 FE 570, could this be the problem?