Solve that noisy cam chain problem once and for all. APE KTZX10 Manual Cam Chain Tensioner Fits the following models: Kawasaki ZX10 & ZX10R 2004-2010 The picture shows the KTZX10 APE Manual Cam Chain Tensioner. Adjustment of an APE manual cam chain tensioner is easy. Slowly advance the motor in it's normal direction of rotation while turning the APE Manual Cam Chain Tensioner adjusting screw in with the fingers of your free hand, or with a screw driver. When the adjustment screw stops or gets hard to advance, you are done. Hold the adjustment screw in place while you tighten the lock nut.