500 Two-Stroke Tech

Hi chaps
I’m in the sunny UK so this might be irrelevant?
But I have a 1986 Rg500
What are the differences between the year models??
Thanks Mike

from memory :
RG500G (85-86)
RG500CH (87/88)
color schemes
choke cable , throttle cable , choke lever , left handle switch , pillion foot peg .
improved gearbox on RG500CH (depends on engine serial number )