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Valve Spring

Inner Valve SpringRangeLimit
Spring measurement diagram Free Length Inlet 40.1mm 1.58in 38.1mm 1.50in
Exhaust40.1mm 1.58in 38.1mm 1.50in
Set Length

(Valve Closed)
Inlet 22.7mm 0.89in    
Exhaust22.7mm 0.89in    
Compressed Pressure

(installed)
Inlet 16.8-19.4kg 37.0-42.8lb    
Exhaust16.8-19.4kg 37.0-42.8lb    
Tilt Limit* Inlet 2.5'/1.7 mm 0.067in    
Exhaust2.5'/1.7 mm 0.067in    
Direction of Winding Inlet Right      
ExhaustRight      
Outer Valve SpringRangeLimit
Spring measurement diagram Free Length Inlet 43.8mm 1.72in 41.8mm 1.65in
Exhaust43.8mm 1.72in 41.8mm 1.65in
Set Length

(Valve Closed)
Inlet 34.2mm 1.35in    
Exhaust34.2mm 1.35in    
Compressed Pressure

(installed)
Inlet 37.1-49.6kg 81.8-109.3lb    
Exhaust37.1-49.6kg 81.8-109.3lb    
Tilt Limit* Inlet 2.5'/1.7mm 0.067in    
Exhaust2.5'/1.7mm 0.067in    
Direction of Winding Inlet Left      
ExhaustLeft