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Front brake switch

PostPosted: Thu Oct 17, 2013 2:53 pm
by Deedum9
Maybe a random question, but where is the switch for the front brake light please

Re: Front brake switch

PostPosted: Thu Oct 17, 2013 5:52 pm
by therealche
What bike are you asking about? The TS series do not have a front brake switch, it is not required. ( although there were some front brake plates with a built in switch .... never come across one myself)

Re: Front brake switch

PostPosted: Thu Oct 17, 2013 8:14 pm
by DAVID THOMPSON
link to part numbers
front switches first appeared in about 1970 by 1972 as required by law in usa
viewtopic.php?f=20&t=6768&p=35322&hilit=brakeswitch#p35322

Re: Front brake switch

PostPosted: Thu Oct 17, 2013 10:30 pm
by mr_luke
My very early ETZ 250 standard didn't have one either... Otherwise, on the ETZs and Saxons I've encountered, it has been on the side of the lever mount/master cylinder on the handlebar. It's a mechanical switch, and the lever bears against it when at rest to open it. Be warned - they're horrible things which self destruct if you have to fiddle with them too much. A friend of mine disliked the brake light switches on his MZ so much that he made his own from ballpoint pens - very zed cred! I think there's a chap in the MZRC who can supply hyrdraulic switches and the fittings required to connect them to the master cylinder, in line with a braided steel hose, if you want to spend a bit more money!

Re: Front brake switch

PostPosted: Fri Oct 18, 2013 4:44 am
by Deedum9
oh sorry....yes it's a 1995 MZ301
back one works fine, just the front one doesnt

Re: Front brake switch

PostPosted: Fri Oct 18, 2013 6:44 am
by DAVID THOMPSON
if its hydraulic brake master cylinder its a bmw part

the front one is a bmw part
61 31 1 244 070

and appears as early as 1972 on the hd/aermacchi 250/350 sprint

Re: Front brake switch

PostPosted: Fri Oct 18, 2013 8:31 am
by therealche
grime1_0001.jpg
grime1_0001.jpg (48.02 KiB) Viewed 5314 times

If it is a Square master cylinder


96 24 451.jpg
96 24 451.jpg (44.42 KiB) Viewed 5314 times

If it is a round one

And they are horrible fiddly things that break if you look at them wrong!

Re: Front brake switch

PostPosted: Sat Oct 19, 2013 3:10 pm
by Deedum9
Brilliant, thank you, this means mine is broken then, I'm guessing sourcing one will be relatively easy ?

Re: Front brake switch

PostPosted: Sat Oct 19, 2013 3:30 pm
by DAVID THOMPSON
should be easy but you may have to not drink any beer this week if your poor..
i think the last time i bought one it was almost $13 usd
dave

appears on this page at moto bins co uk
right side bottom of page this may change over time on there site

http://www.motobins.co.uk/displayfinal. ... =&bike=991

Re: Front brake switch

PostPosted: Sat Oct 19, 2013 3:53 pm
by therealche

Re: Front brake switch

PostPosted: Sat Oct 19, 2013 3:59 pm
by arry_b
These fit the rectangular Grimeca master cylinder, and last as long as the steel originals:

http://www.ebay.co.uk/itm/Gilera-DNA-50 ... 53f65a6a62

Under £4 delivered.

Re: Front brake switch

PostPosted: Sun Oct 20, 2013 12:41 pm
by Deedum9
well i removed the brake itself (that was very easy) but still can't work out the switch bit ?

Re: Front brake switch

PostPosted: Sun Oct 20, 2013 3:22 pm
by therealche
Quite often the switch breaks flush with the master cylinder

grime1_0001a.jpg
grime1_0001a.jpg (47.07 KiB) Viewed 5279 times


Just leaving the threaded portion corroded in place. It's one of the few times I would use an easyout to get the threaded bit out

Re: Front brake switch

PostPosted: Tue Oct 22, 2013 5:36 am
by Deedum9
ok, brilliant, thank you , will look again

Re: Front brake switch

PostPosted: Sat Nov 02, 2013 1:27 pm
by Lpo90
That brake light switch was a bit faulty on my etz, light would stay on unless I lifted the brake lever when releasing it, bought another switch of eBay for £7,
old one came out with the mole grips then put the new one in, now as good as new :D