SOHC.co.uk Forums > CB350/400

Front brake switches don't seem to last long...

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Bryanj:
Ill say same as in brakeswitch post, Honda bought a supplier part that fitted and worked, and worked for many years before it was stood doing nothing and gummed up with secret additive found in all oils(sh*t)

Mikep328:

--- Quote from: Ken4004 on April 26, 2026, 08:38:26 PM ---Just an idea you have nothing to loose, my bike has been in storage for 12 years and the brake pressure switch didn’t work so I used the blunt end of a drill bit an pushed it through the hole where the switch connects to the brake manifold and it moved slightly and it freed the switch and has worked ever since.

--- End quote ---

Thanks - might try that.  Costs nothing other than having to rebleed the brake after removing/reinstalling.  Of course, if it doesn't work then get to do it all again with a new switch!   ::)

K2-K6:
I use a bleed tube to make it easy.

The type that have thick rubber wall, stopper in the end and slit cut just up from stopper to give very effective one way valve. You can buy them but easy enough to make, then with a longer tube so that it reaches the traditional British jam jar down on the floor.

Normal method, buy jam, make toast, eat jam on toast (scones or other jam foundation materials available) use empty jar to catch fluid  ;D

Joking aside, the tube makes virtually one shot bleed exceptionally easy with any system. I use on cars too, with split/anti-lock systems etc, they work completely solo with pushing pressure through and nil return to let you close off bleed nipple conveniently after air is expelled.

Mikep328:
Thanks, good idea re split tube!!  I ended up buying a pattern switch from DSS and plan to remove the old/install new/bleed brakes tomorrow.  Don't have an empty jam jar but I'll make do with one of my several empty Hendricks gin bottles!! ;)

Athame57:
You could go second hand with https://www.400fourbits.co.uk/#electrical as to whether they are OE I think you'd have to message Steve there.

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