Quoted from Flippermatt:1, Firing off the ball. There is no way the ball can make it past the skillshot holes and all the way up and around the ramp. I have installed a new plunger. Doesn´t work.
I bought a complete shooter mechanism and had the same problem. It looks like they put too many washers on the thing and it doesn't allow you to draw it back far enough.Take a few off and it should be better.
Quoted from Flippermatt:The Lauren Belle starts to make noises after approx 10 minutes. The gears that drive the belt start to cough, make sudden stops and don´t turn smooth. I have greased the gears, the axel and shafts.
I don't think you're supposed to grease those gears. They gunk up pretty quick, so you're better off getting all the grease off. Maybe a few drops of something like sewing machine oil but a lot of people say don't do anything to the gears. I think there's a felt pad on the motor that's supposed to be oiled.
Sorry, I don't know much about the opto issue as I still have the original ones.