(Do it again. Learning how to post pictures. Bear with me please.)
OK. Finally got aroud to post some pictures of the hnadguards installed on my JH600. Although the Taobao vendor swore up and down that those handguards offered were made for JH600, the actual installation took a bit of cutting/sanding/fitting. I went to that shop in Pudong recommended by Nostalgia for the job and was very happy about their service.
This is how it looks from the front:
And from the back:
I was afraid of the additional weight this set would add to my already heavy bike. Fortunately these guards replace those 2 end pieces originally came with the bike, which are quite heavy themselves. So the net increase of weight was not all that bad. By the way, the wind blockers, although small, were effective.
The attachment to the handle bar sits at a funny angle against the handguard:
Cheers.
Milton