ENGINE SPECIFICATIONS Item
Standard
SPEC Limit
Spring tilt
Intake
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Exhaust
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Winding direction (top view) Intake Exhaust
Outer springs Free length Intake Exhaust Installed length (valve closed) Intake Exhaust Compressed spring force (installed) Intake Exhaust
2.5˚ /2.4 mm (2.5˚/0.094 in) 2.5˚ /2.4 mm (2.5˚/0.094 in)
Counterclockwise Counterclockwise
43.25 mm (1.70 in) 43.25 mm (1.70 in)
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41.26 mm (1.62 in) 41.26 mm (1.62 in)
31.0 mm (1.22 in) 31.0 mm (1.22 in)
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139 ~ 161 N (13.9 ~ 16.1 kgf, 30.6 ~ 35.5 lb) 139 ~ 161 N (13.9 ~ 16.1 kgf, 30.6 ~ 35.5 lb)
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Spring tilt
Intake
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Exhaust
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2.5˚ /2.4 mm (2.5˚/0.094 in) 2.5˚ /2.4 mm (2.5˚/0.094 in)
2-6
2