10,000 miles and no issues at all with the bike.
I think another question you should ask is how often you run the bike really low on gas. I live near a lot of gas stops and so I rarely go 5-10 miles past when the reserve light comes on.
2009 KTM 300 XCW
2007 KTM 990 Adventure
2003 KTM 300 EXC
2003 KTM 50 mini adventure (boys)