Comet sunlight led should be good for GI. Some color match under playfield.
The shooter spring is weak to be able to make the skill shot. A full pull should send the ball into the hole and out to the playfield.

Great first pin!

Tests - Lamp Test - All Lamps - look for burned out ones.

TZ shipped with #44 GI's, if replaced with #47 bulbs it will be dimmer ( done to save on GI connectors ) or depending on LEDs used could be brighter.

TZ uses a softer spring to aid in getting the skill shot right up the shooter lane.

LTG : )

Here is about 300 pictures of anything you could want to see.
https://pinside.com/pinball/machine/twilight-zone/gallery

Here is a video of a stock machine in action so you can have something for reference as to what is working and what isn't. Also a great tutorial.

As to the launcher, you can replace the Spring. I'll let others tell you the exact parts but replacements of every type can be found here.

https://www.marcospecialties.com/pinball-parts/6?VIEW_SIZE=60&VIEW_INDEX=12&view=card&sortOrder=SortProductPrice:DEFAULT_PRICE

Most folks LED their machines and that can run from $100-$250. If you are going to do that replace the rubbers at the same time. I like Comet 2 SMD Natural light but you will get many different opinions. https://www.cometpinball.com/

Welcome to the addiction and good luck!

What number on the bayonet ones ? #44 or #47 ?

LTG : )

Doesn't look like the right spring. It should be able to get the ball to the row of switches right up the shooter lane. But not screaming past them.

Shooter rod clean ? Plastic sleeve in the shooter rod housing there, and clean and not broken ?

LTG : )

Are the glass domes clean and no silver looking burn inside the dome ? Plastics they are under clean ?

LTG : )

It looks to me like your shooter rod tip is missing the rubber. You can find the tip @ https://www.marcospecialties.com/pinball-parts/38-1100W or https://www.pinballlife.com/white-shooter-tips.html.

The correct spring is the BROWN spring (lowest tension). You can find the spring @ https://www.marcospecialties.com/pinball-parts/10-148-6.

If you want to know more about the ball shooter assembly (B-12445-6) see page 2-37 of the Twilight Zone manual which you can download @ https://www.ipdb.org/files/2684/Bally_1993_Twilight_Zone_Operations_Manual_OCR_searchable.pdf.

If it is, you need new balls too.

LTG : )

Comet and Coin Taker has brighter ones. Get non ghosting ones.

LTG : )

Can I see a pic of the LEDs that were in there? The initial LED bulb tech was bad and those bulbs didn't last very long, especially if on location or left turned on all day. After a few months of heavy use, some of them dimmed. The new stuff (which we call SMDs at Comet, to distinguish from the LED-style first generation) last tens of thousands of hours.

It's really easy to put in new bulbs. Send me a PM and I can help, or buy a kit (which will have everything you need and some extra illumination that wasn't stock in the game...like spotlights and a strip along the back of the playfield which is normally pretty dark).

Figure out how to open the backbox (and remove the translite...which once you've turned the key can be lifted up from the bottom and then pulled forward from the bottom and slid out). Then you can see if any of those bulbs back there are working. It's possible they just need to be replaced (especially if you say the other bulbs in it are dim), but if none of the sockets light up with different bulbs, it could also be a blown fuse or a connector that needs to be rebuilt (easy to do if you have the tools).

Agree you probably need a new spring, and also a rubber tip for the plunger. It's an easy thing to replace once you figure out how to do it the first time (just use a flat head screwdriver to remove the E clip near the tip of the flipper and try to prevent it and the spring from flying off into the distance while doing so).

Dead center. The shooter rod housing is adjustable. Loosen three screws inside the cabinet to move it around.

LTG : )

Thanks for the order! For the inserts, I’d recommend 1SMD non-ghosting. For the GI, you essentially never need to worry about ghosting, so you can just get standard bulbs. I’d recommend 2SMD, with frosted lenses. Those two bulbs are pretty close in brightness.

If you ordered the wrong stuff, reach out through the site and we will tell you how to send them back for a full refund.

Guessing someone cut down a higher tension spring to try to match the brown spring as mentioned above. Just order that and you will be good to go!

One of my favorite games! You will definitely enjoy it!