I'm going to do the same. It must be chain drive, but I suspect that it could be a 185 instead of a 200. The parts will likely cross over.

If I find one cheap enough, I'm gonna try building a Frankenstein motor.

I will be looking. They are around.

Interesting zongshen calls this engine a double clutch . It has a provided clutch lever for a cable hook up as well as a centrifugal clutch http://www.zse.cc/productsdetail.asp...ProductsID=422

Interesting. Do you see where they actually offer the clutches for sale, or only the complete engine?

Humanbeing, are you able to ask your friends on Chinese forums about installing a centrifugal clutch in a CG200? Somebody must have done one.

No . I just found this . I have no details other than this site . First think that strikes me right away,is the side cover with 2 larger round places . A sales girl in china is trying to find out more for me . covers maybe interchangable

I doubt it. The centrifugal clutch runs off of the crankshaft, and it sticks out quite a bit (on the ATC's at least). I don't think a standard cover would have the clearance.

oh I mean maybe we could use the double clutch cover and add a centrifugal clutch. if there is not a difference on the crankshaft end . This would still need a clutch lever and cable . Really this setup is automatic for sitting still in gear. of course we can upshift without a clutch . downshifting a little harder

HB, I'm looking at this kit for my CB200. Is there a better piston you can recommend for this setup? http://world.taobao.com/item/1517199....14.109.DKkOcA

That 200 was Chonda (63.5mm) or ZS (69mm) ? http://world.taobao.com/item/15550565903.htm
Shipping cost may kill the fun... (The CG kit http://item.taobao.com/item.htm?id=8432093238 is ~12kg already | This kit weights more than CG )

It is the ZS 69mm bore. I bought a CB250 crank to go with it, but you convinced me that it's not worth the trouble. Do you know the CB250 stroke? I'm guessing that it's around 66mm.

HB, do you know of a China equivalent to the Kawasaki CS250 or BR250?

HB, can you point to any information about the PGO scooters between 1972 and 1982? I can't find anything from those years.