I had the same problem on my 200x. I had to bring it to a machine shop, and they used a large drill bit in a large drill press, and slowly driled into the old bushing until it caught, then it spun right out. Mine were only the races left, and no needles. What makes it hard for a do it yourself guy is the little step in the swingarm that the bearring sits against. This makes it near impossible to drive it out with a punch.
THE 80's RAGE! Currently owns:
81, 85 Yamaha Tri Moto 125
83 Yamaha Tri Moto 200 x2
82,83 Yamaha Tri Moto 175 project
85 Yamaha Tri Z 250
84 Kawasaki Tecate 250
84 Honda ATC 70
85 Honda ATC 350X
84 Honda ATC 250R
(2) 84 Honda ATC 200x
82, 83 Honda ATC 185s
81 ATC 200
Lots of other parts and bikes