I recently picked up a second NES at a pawn shop. It looks great after a quick cleaning, and plays games first or second try.
Everything is great, except for two things.
1) It's very stiff. It takes a lot of force to pull out the games, and sometimes when you push the game down, it hits the nes, and you need to really force the cartridge back so it doesn't hit.
2) The game won't stay pushed down. I know a piece of metal goes down a little white thing, then sticks, then goes back up when you push down on it. I'm guessing that's where the problem lies. Hard to explain, but you may know what I mean. Right now I'm just sticking a duckhunt on top of the inserted game, and it's working, but a permanent solution would be nice.
Thanks!