7. CYLINDER HEAD/VALVES ATV 300/250 Intake Manifold CYLINDER HEAD REMOVE Remove the camshaft. (Refer to the "camshaft remove" section in the chapter 7) Remove the carburetor. (Refer to the "carburetor remove" section in the chapter 5) Remove the exhaust muffler. (Refer to the "exhaust muffler remove" section in the chapter 2) Remove the two bolts and then remove the Bolts carburetor intake manifold. Bolt Bolts Remove the bolt and disconnect the thermostat. Remove the two cylinder head bolts. Remove the cylinder head. Bolt Valve Cotter Retainer Springs Springs Seat CYLINDER HEAD DISASSEMBLY Remove the valve spring cotters, retainers, springs, spring seats, oil seals and valves using a valve spring compressor. · Be sure to compress the valve springs with a valve spring compressor. · Mark all disassembled parts to ensure correct reassembly. Spring Compressor Oil Seal Valve Special tool: Valve Spring Compressor E040 7-9