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Front brake - light switch query

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andy120t:
It's a pressure switch. Mine is tight/ corroded in the three-way mounting and I'm wary of snapping it off.

Aside from that here a way to test it when it's off the bike/ without fluid in it?

Why does one of the bullet connectors seem to be hollow, and one isn't ( see piccie)?

Thanks for any insight!

Bryanj:
No way of testing off the bike, you should find a size of 12 point metric socket will fit exactly onto the switch to undo and no idea why connectors are like that

Rayzerman:
Any issue with just getting a new switch?

andy120t:
New switch?
- if the old one still works I won't need to replace it.
- the old one looks a lot nicer than a shiny new one.
- not to mention the cost, plus the tax I would have to pay for a new one...!

I was trying it fairly gently with a spanner, but I'll give it a good soak for a while then try with a socket.

Ken4004:
If you can remove the switch you can use the blunt end of a drill  bit the same diameter of the hole to gently push the diaphragm inside the switch, I think inside is a thin film of metal which deflects when pressure is applied this connects the two terminals which you can check with a DVM, this is how I tested my switch off the bike.

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