How much gear lube is needed to fill the resevior when I change the premium gear lube in the lower unit so I know how much to buy. The key on the flywheel was sheared and it threw the timing off and i had disconnected the kill switch wire while I was troubleshooting the timer base and powerpack and i forgot to reattach it , that's why it wasn't shutting off with the key. does anyone know the quantity of gear lube that it will hold . 1977 evinrude 140