Sticky sanwa button

The HP button on my stick has been gunky (i think it’s gunky at least) for a while, and I don’t know how I would go about cleaning it. Can anyone tell me how to disassemble/clean the inside of a Sanwa button?

Take the button out. There are two holes on the button; press the plastic you can see inside from both holes and the plunger should come out.

Thanks koi. I got the plunger out but it seems the problem is the little white mabobber that the plunger rests on. In between the white thing and the part sheathing it is where the “gunk” is. I’m gonna try and explore a bit before I pass out.

Sanwa switches are openable (unlike Seimitsu’s):

nice post MKL. can’t get any clearer than that.

Thanks alot. Do you know how to disassemble the button completely?

If not, i’ll figure it out eventually.