Check each pod individually on a table top, that they still click when you push them. If one is broken, you can always swap it with one of the fire button pods (which ever fire button you don't use) to fix the problem. If two are broken, you might have a problem, because getting replacements for these pods is more or less impossible. Be careful when cleaning these, because they're very easy to bend and once they'Ve ve been bent, they don't ever work properly again.
When everything is cleaned and tested, you can re-assemble the joystick for a real test with your favourite game, but as I mentioned above, be careful not to trap any wires when re-assembling the joystick, the JY-2 wires can easily get trapped under the screw holes while putting the housing back together.
== Open Micro-Switch Joysticks ==