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scottoxlch · #1 10th January 2022

Helping a friend restoring a dual carb Sputhe sportster engine. It has XR750 cams and we have no idea what kind of valve spring seat pressures we should shoot for. Any advise or thoughts much appreciated.
Scott

Turbo Sporty 48 · #2 14th January 2022

When I groogled up XR750 valves, came up with this.
You might give Hammer Performance a call, probably the source of this information, http://hammerperf.com/contactus.shtml
http://www.nrhsperformance.com/tech_xlcaminstall.shtml

scottoxlch · #3 14th January 2022

Thanks 48. Some good stuff there. I did find a guy who is well versed in building XR750 engines so he can help me out too.
Scott