ATTENTION vintage Kawasaki JETSKI collectors or FAST 300cc. Made in Japan in the mid-1980's... NEVER to be made again!! This complete Kawasaki cylinder and head combo can be used on all years of 300cc jetskis from 1986-90 AS-IS! Complete top-end will work without modifications on all 1986-88 JS300-B hulls and or the 88-90 300SX type engines! This trick RACING combo came from a ski that was used in FRESH WATER conditions ONLY... The TRICK racing cylinder combo using this head had 190PSI cranking pressure at 2500FT! You can see in photos the head has had massive milling, it is lots thinner then OEM stock type heads! Please look close at…