I'm new to pinball ownership and terminology, so please forgive me if I butcher the names for some of this stuff.
I had a Diner pinball for about a month and it had worked flawlessly until two days ago. When the ball goes in the "Today's special" cellar hole it doesn't always have enough power to kick it back out the eject hole. Sometimes it will barely make it to the top of the playfield, other times it dribbles into the plunger lane or gets trapped under the plate that covers the eject hole. Any tips would be appreciated.