If you shift into neutral before stopping rather than shifting into 1st and pulling in the clutch, can you stop without the engine dying? If so, your clutch could be dragging... If you put the rear wheel on a stand, and start the engine and put it in 1st gear and pull in the clutch, the rear wheel should stop in about one revolution -- it should not keep spinning.
If you don't turn the ignition off and on and just press the starter button after it stalls, what happens? Turning the engine off and on does prime the fuel pump. It also resets the vehicle-down sensor state...
If you don't turn the ignition off and on and just press the starter button after it stalls, what happens? Turning the engine off and on does prime the fuel pump. It also resets the vehicle-down sensor state...