I´ve got the Stern Star Trek Pro and am learning to play it. I watched Bowen Kerins tutorial on Youtube and saw that he got the ball to loop around from right to left - check this video at 9:10 for what I mean:

The thing is that when I play the ball always bounce down to the pop bumpers, it never goes around to the left flipper like on the video. Why is that? Is there something wrong with my pin? Or is it only at some situations it does that?

That doesn´t seem to work. Should it open both with autoplunger and full plunge or is it only full plunge?

EDIT: Meant full plunge

It doesn't work, with autoplunger or plunger. My plunger is also very weak so the ball never goes that far, anyone know why that is? See photo - the plunger is pushed all the way in. I´ve checked the autoplunger and it seem to be all the way back. There is some black padding on the autoplunger, but that just raises the ball a tiny bit.

2017-02-19 22.34.24 (resized).jpg

OK, so I removed the padding (which I had put on there to minimize noise and wear on the balls). The plunger rod now makes the ball go all the way up. However, holding the left flipper doesn´t make the ball continue past the post, the ball just bounces back down to the pop bumpers. I also have never got the ball go around on top during play. So - is there a way to verify if there is actually something wrong with the post and is there a way to fix it? I tried holding the left flipper at start of a game and pressing with my finger on the post and it is dead stuck. I really feel this is a bit limiting on my game experience as I really like the flow when the ball goes around as on the video in my original post.

Thanks a million. There we have, it doesn´t move (the right one #52 works, so I am doing it right). So what do I have to do to fix this?

No, nothing is blocking it. I´ve checked the connectors under the playfield, nothing wrong there. Guess the coil needs to be replaced?

Thanks for all help. I connected it to the right one and that worked so it´s a bad coil for sure. Found a place to buy it so I will exchange it. Again thanks, I´ll let you know how things turned out when done.

OK, so now I´m done and the problem is solved! It was the mini coil that was defective. I´m not sure if it was from factory since I´m not the first owner, but the game is fairly new with not that many games played so it´s a bit strange that the coil failed so soon. As stated above there was nothing blocking the post and the coil didn´t react in the coil test (but it worked when connecting the right orbit coil to the same connector).

So I ordered a new mini coil, [511-7510-00] from www.marcospec.com and installed it. It was indeed a bit tricky to install into the assembly, or rather it was hard to remove the old one from the assembly since the pin that holds the stop gate needed to be removed and when bending the end of the pin it broke. Thankfully the remaining part was long enough to bend back when the new coil was installed.

So now everything works flawlessly and I love the way the game plays now - much more flow and fluid play. I feel I did find it annoying before when the ball always ended up in the pop bumpers slowing down the game. Now I can enjoy fast orbit balls and it´s much more fun!

Thanks to everyone who gave their ideas on this issue.