I fly the King Air, I find that the aircraft only burns fuel from the left tank. The right tank does not burn fuel at all. I have tried just about every type of configuration to burn fuel out of both tanks. Any suggestions?
The aircraft doesn't have tank selector, so it uses the internal configuration of FSX.
This happens when you have a default flight saved with a left tank selected or you recently switched from an aircraft with a left tank selected.
Do this: select the default Cessna 172 on FSX and put the tank selector in BOTH, then switch back to C90.
I suggest saving the C90 as a default flight for avoiding this procedure every time you start FSX.