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SPEC
ENGINE SPECIFICATIONS
Valve stem runout ---- 0.01 mm
(0.0004 in)
Valve seat width
Intake 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) ----
Exhaust 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) ----
Valve springs
Free length
Intake 38.9 mm (1.53 in) 37.0 mm
(1.46 in)
Exhaust 40.67 mm (1.60 in) 38.6 mm
(1.52 in)
Installed length (valve closed)
Intake 34.5 mm (1.36 in) ----
Exhaust 35 mm (1.38 in) ----
Compressed spring force (installed)
Intake 82 ~ 96 N
(8.2 ~ 9.6 kg, 18.43 ~ 21.58 lb)
----
Exhaust 110 ~ 126 N
(11.0 ~ 12.6 kg, 24.73 ~ 28.32 lb)
----
Spring tilt
Intake ---- 2.5°/1.7 mm
(0.067 in)
Exhaust ---- 2.5°/1.8 mm
(0.071 in)
Winding direction (top view)
Intake Clockwise ----
Exhaust Clockwise ----
Item Standard Limit