I have has prolly 8 big red 250's...Luckily i have not had a bad rear bearing yet, But you should be able to grab the rear rack and giggle it from side 2 side and listen and feel it if they are bad. Another way is jack it up and wiggle the rear .
our original 85 we bought new, 2 - 86 police specials
250r dust runner
04 Yamaha kodiaK 450 snowbuster ! Brute Force 750 dust collector .
Bunch of es stuff I been buying for next builds....
Gone but lives on in my aching body the mighty 350x collection . A Beat 85 es im gonna rebuild