Saw this on ebay today and am interested in buying one.

Air Cylinder Block Piston Ring Head Gasket Kit for Kawasaki KLX300 97 08 78mm | eBay

Anyone else here have this kit? How is it working for you?

 

I have searched and not found anyone who has installed the chinese 300 cylinder and piston on a klx 250. Have you any progress on you question?

 

Nobody wants to take a chance because the lower tension plug/spring holder is not the right size. I read on advrider that one of the sellers supposedly updated and has the right size lower tensioner plug/spring holder, but nobody has taken the chance.