You need to remove the spark plug from the cylinder that is being serviced and the rocker arm, install the J 22794 to the spark plug port, apply compressed air to hold the valves in place, install the J 38606 on the valve spring, compress the valve spring with the J 38606 and remove the valve locks, the valve cap, the valve spring, and the valve stem oil seal.
By BobGM Specialist
02/11/2022