Spring for Modified BSP 196cc Clone, Honda GX200, Predator 212cc and Yamaha F200  -  Sold Separately

This is the preferred valve spring for modified GX 200 and clone engines that will need to turn a max RPM of 7500 to 8000 with cam/rocker combinations of valve lift less than .325". Not recommended to be used with stock valves, but highly recommend to be used with stainless valves and retainers. Higher RPM's can be achieved with shims placed under this spring, however, shims decrease the spring's range of travel before coil bind, reducing the amount of lift that can be run. ALWAYS CHECK SPRING COIL BIND ON EVERY BUILD