3-32 ENGINE • When compressing the valve spring, use a protector that is handcrafted from a 35-mm film cartridge as shown in the right illustration. For intake side For exhaust side A 7 mm (0.28 in) A 7 mm (0.28 in) B 46 mm (1.81 in) B 46 mm (1.81 in) C 24 mm (0.95 in) C 22 mm (0.87 in)  To prevent damage of the tappet sliding surface with the special tool, use a protector. • Install the protector 3 between the valve spring and cylinder head. • Using the special tools, compress the valve spring and remove the two cotter halves 4 from the valve stem. 09916-14510: Valve lifter 09916-14530: Valve lifter attachment 09916-84511: Tweezers E L P M A S • Remove the valve spring retainer 5 and valve spring 6. • Pull out the valve 7 from the combustion chamber side.