Hi guys my name is Mladen. Im not soo good in English but i will try to explain my problem and really hope someone know how to fix it.....im have engine failure and im change cylinder and piston. After this my bike dont work properly. Im check valves pump pressure then do tps and ecu reset, and again my bike dont have power after half a throttle just booooo... when I release throttle i have big engine braking and this is not normal. Someone can help??? Once friend say this is Some valve on crankshaft Inside engine.