How do you adjust valve clearance on CBR 150?

To adjust the valve clearance on a CBR 150, first, ensure the engine is cool and remove the seat and fuel tank for access. Rotate the engine to the top dead center (TDC) of the compression stroke for the cylinder being adjusted. Use a feeler gauge to measure the clearance between the valve stem and rocker arm; if it's out of spec, loosen the lock nut and adjust the screw until the correct clearance is achieved. Finally, re-tighten the lock nut, recheck the clearance, and reassemble the bike.