Rebuilding this superb V twin Kawasaki engine, or just overhauling the valve gear drive train? Either way the camshaft chain tensioner assembly and its associated parts should be renewed preferably replacing all the parts of the assembly at the same time!
Other parts you may consider replacing with this item: 120481072 920811380 120531161 120531162 132351051
Renewing all the parts of the cam chain tensioner assembly at the same time is advisable