Hi,new on here and recently got 2000 cube 650.Had to do a few jobs,but now it´s sorted.....nearly.As soon as I get anywhere near reserve approx 200km it starts to pop n fart n backfire.If I fill it up with fuel it is sweet again.I´ve checked tank,tap,breather nipple etc all OK..I can take tank off,run fuel out,until empty,then switch to reserve and the rest comes out...only other thing I can think of is %!¤ wrong routing of fuel pipe?