e30isking Posted January 30, 2019 Share Posted January 30, 2019 Hi, Can someone tell me the acceptable valve stem diameter for the intake and exhaust valves? This should be in the workshop manual, maybe the service manual? Should be an interval in mm with 3 decimal places. This is for the 4 valve air cooled GSXs. Thanks! Quote Link to comment
Duckndive Posted January 30, 2019 Share Posted January 30, 2019 You could be right Quote Link to comment
jameskat Posted January 30, 2019 Share Posted January 30, 2019 For a GSX1100S the service manual Inlet valve stem O.D. 5.460mm - 5.475mm Exhaust valve stem O.D. 5.445mm - 5.460mm Quote Link to comment
e30isking Posted January 31, 2019 Author Share Posted January 31, 2019 Thanks James - that was quick! Quote Link to comment
e30isking Posted February 20, 2019 Author Share Posted February 20, 2019 Hi again, Have another question. The 1100 had 27mm intake valves but what about the 1150? Were they 27,5mm? As far as I know the exhaust valves stayed the same in the 1100 and 1150... Thanks, Paulo Quote Link to comment
Swiss Toni Posted February 20, 2019 Share Posted February 20, 2019 Inlet valve dia. 28mm Ex. 22.9mm. Quote Link to comment
e30isking Posted February 20, 2019 Author Share Posted February 20, 2019 Thanks a lot!! Do people usually use the GS1150 valves on the 1100? I am assuming the ports are also bigger / better flowing? Quote Link to comment
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