Remove the following covers.
Rear left stay (Rear Left Stay)
Left upper cover (Left Upper Cover)
Remove the screw from the rear center stay [A].
Insert a flathead screwdriver into [A] and [B] to release the hooks of the rear center stay [C].
Remove the rear center stay [C].
Be careful not to damage the hooks on the inside of the rear center stay when you remove or install the rear center stay.