2 - 7 ENGINE SPECIFICATIONS SPEC Item Standard Limit Valve-stem-to-valve-guide clearance Intake Exhaust Valve stem runout Valve seat width Intake Exhaust 0.010 ~ 0.037 mm (0.0004 ~ 0.0015 in) 0.025 ~ 0.052 mm (0.0010 ~ 0.0020 in) ---- 1.00 ~ 1.20 mm (0.0394 ~ 0.0472 in) 1.00 ~ 1.20 mm (0.0394 ~ 0.0472 in) 0.080 mm (0.0031 in) 0.100 mm (0.0039 in) 0.040 mm (0.0016 in) 1.60 mm (0.0630 in) 1.60 mm (0.0630 in) Valve spring Free length Intake Exhaust Installed length (valve closed) Intake Exhaust Compressed spring force (installed) Intake Exhaust Spring tilt Intake Exhaust Winding direction (top view) Intake Exhaust 38.79 mm (1.53 in) 38.79 mm (1.53 in) 35.00 mm (1.38 in) 35.00 mm (1.38 in) 169 ~ 199 N (17.23 ~ 20.29 kgf, 37.99 ~ 44.73 lb) 169 ~ 199 N (17.23 ~ 20.29 kgf, 37.99 ~ 44.73 lb) ---- ---- Clockwise Clockwise 36.85 mm (1.45 in) 36.85 mm (1.45 in) ---- ---- ---- ---- 2.5°/1.70 mm (2.5°/0.067 in) 2.5°/1.70 mm (2.5°/0.067 in) ---- ----