sounds to me like a bent shift fork which may or may not include broken or worn dogs on the frewheeler and or slider gears,possibly worn shift drum ,also may have a broken or bent shift detent .the detent may or may not be fixed by removing the outer case im not too familiar with the 200e but the shift fork,drum,and slider and freewheeler gears are in the motor accessable only by splitting the cases
83 YTM 200,84 200X,,85 350X basket case,86 350X parts trike,86 350Xroller needs top end, 86 250SX,