Is it better to flush the engine oil before putting the bike away for 5 months or just before the the season next April? Something about not wanting to carry deposits in the engine for an extended period of time. Myth or fact? Thoughts please.

Hey guys, I purchased my bike (Kwasaki Ninja 650r 2009) two weeks ago and I have been riding it almost everyday. I have around 200 miles on it now and I decided to change my oil last night as I read on a lot of forums that people change it around 150-200 and then again at 600. I decited to be...