300 bowling pinball machine. Pinball is not kicking through the return to play the second ball. Once the ball enters the return and sit in the kicker hole it its a switch and activates the red bonus balls to count. I believe the pinball should sit in this slot until all the red bonus balls are counted and then the ball should kick out. Ball does not kick out but I can manually fire the relay kicker switch and it will kick out and go to ball two. Sorry if the lingo is not correct still learning.