The 84 200ES is also round, the earlier years were square, the later were round. I rewired mine to the square type, better availability in aftermarket parts.
Don't rely on what your seeing with the meter, i can test a brand new on and not get what the manual shows, its just not easy to test these other than hook them up and see if it runs!
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1984 Honda ATC200ES "Big Red"
1982 ATC200E "Hondie"
1988 TRX300FW "Project Quad" Still in progress....