My left gopher will pop up but immediately fall back down. He won't stay up. When you shoot the left ramp to pop him up he should stay up but he falls fast the first half way back down and then slowly falls the rest of the way. It doesn't matter when he pops up he just goes back down slowly fast half the way then finishes the rest of the way slowly falling. Any info on how to fix this and get him to stay up when he's supposed to would be appreciated. I'm new to pins so any advice on how to fix and if parts are needed what do I need to get. Thanks!!

Ok I will check all those out that you guys have mentioned. Thanks for the quick responses. Much appreciated!!!
I'll get back and tell if any of those options worked or not. Thanks again!

Thanks everyone for the suggestions and help!! I got her fixed!! I took the whole left gopher assembly out and took that apart and the problem ended up being on the plunger. The plunger is long so it is connected by 2 pieces and in the middle of the plunger where the 2 pieces come together there is a little hole where a metal pin sticks in there I believe to hold it together. Anyways the metal pin was sticking out just enough to catch and rub against the sleeve of the solenoid so I jammed it back in and works flawlessly. I love learning how to fix this stuff so thanks again for all the help!!!