Filter
Top Products
ENGINE SPECIFICATIONS
2-6
Valve spring
Inner spring
Free length (intake) 36.17 mm (1.42 in)
Limit 34.36 mm (1.35 in)
Free length (exhaust) 36.17 mm (1.42 in)
Limit 34.36 mm (1.35 in)
Installed length (intake) 30.50 mm (1.20 in)
Installed length (exhaust) 30.50 mm (1.20 in)
Spring rate K1 (intake) 14.70 N/mm (1.50 kgf/mm, 83.94 lbf/in)
Spring rate K2 (intake) 19.00 N/mm (1.94 kgf/mm, 108.49 lbf/in)
Spring rate K1 (exhaust) 14.70 N/mm (1.50 kgf/mm, 83.94 lbf/in)
Spring rate K2 (exhaust) 19.00 N/mm (1.94 kgf/mm, 108.49 lbf/in)
Installed compression spring force (intake) 75.00–91.70 N (7.65–9.35 kgf, 16.86–20.61
lbf)
Installed compression spring force (exhaust) 75.00–91.70 N (7.65–9.35 kgf, 16.86–20.61
lbf)
Spring tilt (intake) 2.5 °/1.60 mm (2.5 °/0.063 in)
Spring tilt (exhaust) 2.5 °/1.60 mm (2.5 °/0.063 in)
Winding direction (intake) Counterclockwise
Winding direction (exhaust) Counterclockwise
Outer spring
Free length (intake) 36.63 mm (1.44 in)
Limit 34.80 mm (1.37 in)
Free length (exhaust) 36.63 mm (1.44 in)
Limit 34.80 mm (1.37 in)
Installed length (intake) 32.00 mm (1.26 in)
Installed length (exhaust) 32.00 mm (1.26 in)
Spring rate K1 (intake) 30.90 N/mm (3.15 kgf/mm, 176.44 lbf/in)
Spring rate K2 (intake) 40.80 N/mm (4.16 kgf/mm, 232.97 lbf/in)
Spring rate K1 (exhaust) 30.90 N/mm (3.15 kgf/mm, 176.44 lbf/in)
Spring rate K2 (exhaust) 40.80 N/mm (4.16 kgf/mm, 232.97 lbf/in)
Installed compression spring force (intake) 128.50–157.90 N (13.10–16.10 kgf, 28.89–
35.50 lbf)
Installed compression spring force (exhaust) 128.50–157.90 N (13.10–16.10 kgf, 28.89–
35.50 lbf)
Spring tilt (intake) 2.5 °/1.60 mm (2.5 °/0.063 in)
Spring tilt (exhaust) 2.5 °/1.60 mm (2.5 °/0.063 in)
Winding direction (intake) Clockwise
Winding direction (exhaust) Clockwise