When starting a game, 10 point relay fires when the ball kicks out and often goes to ball two. Will score ten points intermittently when the ball drains and the ball kicks out. If I push the start button several times it will eventually start normally. Any ideas?

The ten point relay in back box will fire usually once, sometimes three times fast.

Should have mentioned this way back when. It was a play field switch that was firing whenever the target coil fired. It thumped the play field hard enough to trigger the ten point relay. Gave the switch a little more clearance and the problem was solved.