^This. Pop the “hood”, unscrew, pull out old and busted, put in new hotness, screw in and adjust as desired, drop “hood” (don’t actually drop it) then have a drink and enjoy! Since you are there anyway, look at the coil stop and make sure it hasnt become a mushroom or broken on both. For a game of that age, I might also consider a rebuild and look at the contacts on the flipper buttons. They get crusty after a while and might need cleaning.