How to Adjust the Valve of Motorcycle

Align the T point of the rotor with the notch of the housing (i.e. directly above). Align the J point of the small sprocket with the front notch (that is, just to the left of the front) and adjust the valve. Generally speaking, the inlet valve is smaller and the outlet valve is larger. If the chain is elongated, only the J point of the small sprocket can be aligned with the notch.