3. INSPECTION/ADJUSTMENT MXU 550EXi/MXU500i Timing Hole Cap/O-ring VALVE CLEARANCE Inspect and adjust the valve clearance while the engine is cold (Below 35°C/95°F). To adjust: Remove the right floorboard (refer to the "FRAME COVERS" section in the chapter 2). Remove the cylinder head cover (refer to the "CYLINDER HEAD COVER REMOVAL/INSTALLATION" section in the chapter 8). Remove the timing hole cap and O-ring. Index Mark Remove the recoil starter and O-rings (refer to the "STARTER PULLEY REMOVAL/INSPECTION/ INSTALLATION" section in the chapter 8). Turn the crankshaft clockwise and align the "T" mark on the flywheel with the index mark on the right crankcase cover. "T" Mark Punch Marks The punch marks on the camshaft should face upward as shown. If the punch marks on the camshaft are facing downward, turn the crankshaft clockwise one full turn (360°) and the punch marks are facing upward. 3-10