69J1D11 5-34123456789Checking the valve springs1. Measure the valve spring free length a.Replace if out of specification.2. Measure the valve spring tilt b. Replaceif out of specification.Checking the valves1. Check the valve face for pitting or wear.Replace if necessary.2. Measure the valve margin thickness a.Replace if out of specification.3. Measure the valve stem diameter b.Replace if out of specification.4. Measure the valve stem runout. Replaceif out of specification.Valve spring compressor 4:YM-01253Valve spring compressor attachment5:YB-06320Valve spring free length a:44.20 mm (1.740 in)Valve spring tilt limit b:1.5 mm (0.06 in)Valve margin thickness a:Intake: 0.7 mm (0.028 in)Exhaust: 1.0 mm (0.039 in)Valve stem diameter b:Intake:5.477–5.492 mm(0.2156–0.2162 in)Exhaust:5.464–5.479 mm(0.2151–0.2157 in)Cylinder head
