6. CYLINDER HEAD/CYLINDER/PISTON AGILITY RS 50 NAKED Spark Plug Cap CYLINDER HEAD REMOVAL Remove the rear carrier. Remove the frame body cover. ( 12-5) Remove the spark plug cap. Fan Cover/Engine Hood Remove the three bolts attaching the fan cover to remove the fan cover. Remove the two joint lock nuts on the front of the exhaust muffler and then remove the two exhaust muffler lock bolts. Remove the bolt attaching the engine hood to remove the engine hood. The installation sequence is the reverse of removal. When installing the exhaust muffler, first tighten the two nuts on the front and then tighten the two bolts. Bolts Bolt Cylinder Head Bolts Remove the spark plug. Remove the cylinder head bolts and the cylinder head. Loosen the bolts diagonally in 2 or 3 times. Remove the cylinder head gasket. Spark Plug Cylinder Head 6-3