3. INSPECTION/ADJUSTMENT AGILITY 50 Cylinder Head Cover VALVE CLEARANCE Inspect and adjust valve clearance while the engine is cold (below 35). Remove the frame cover. ( 2-3) Remove the six bolts on the cylinder head cover. Remove the cylinder head cover. ( 7-3) Remove the cylinder head cover.. Bolts Turn the flywheel counterclockwise so that the "T" mark on the flywheel aligns with the index mark on the crankcase to bring the round hole on the camshaft gear facing up to the top dead center on the compression stroke. Round Hole Tappet Adjuster Inspect and adjust the valve clearance. Valve Clearance: IN : 0.04mm EX: 0.04mm Loosen the lock nut and adjust by turning the adjusting nut Special Tappet Adjuster · Check the valve clearance again after the lock nut is tightened. Feeler Gauge CARBURETOR IDLE SPEED · The engine must be warm for accurate idle speed inspection and adjustment. Remove the inspection cover. Warm up the engine before this operation. Start the engine and connect a tachometer. Turn the throttle stop screw to obtain the specified idle speed. Idle Speed: 1900100rpm When the engine misses or run erratic, adjust the pilot screw. Throttle Stop Screw 3-5