Yamaha Yz 125 G 1980 water cooled conversation kit, this conversation kit was made by stillmotor I believe it converted the the Yz 125 G air cooled to a water cooled engine. Kit has been removed from a used bike and consists of barrel cylinder head, radiator and hoses head does have some pitting will need sorting grinding polishing etc, I also have the piston for the barrel but I would say it needs replacing, if it were me I would rebore the barrel and fit a new piston before installing it on a bike, this is a really rare kit that very rarely come up on here. For anymore information please call steve on 07951 694401.The item "Yamaha Yz 125 G 1980 water cooling conversion kit" is in sale since Saturday, March 14, 2020. This item is in the category "Vehicle Parts & Accessories\Trials & Motocross Bike Parts". The seller is "sstsjng" and is located in Bexley. This item can be shipped worldwide.