81' KZ 750-4 Crankshaft Bushings (stock size)

Hey Guys,
I'm trying to order crank bushings for my bike, but I don't know which color is the stock size. I read a forum about this, but their is no green crank bushing for my bike, the colors are 92028=blue, 92028A=black, and 92028B=Brown, so If anybody know which bushing is the stock size (color), it would be helpful if you could drop me a line.
Thanks Much,
Dylon

They are all the stock size

You have to look at the crank and rods to see what color was used during initial assembly. There is very little difference between the colors, only like 0.001" or so.

Thank You,
I'll check it, and order them today then.
Thanks Much;)