Page 1 of 1

Cleaning master cylinder

Posted: Fri Apr 04, 2014 4:32 am
by daxman
Hi All

I'm transplanting a GP100C disc front end onto the venerable A100 I have been messing about with.
Not really investigated the m/c until last night when I took the reservoir cap off and saw an unholy amount
of cr@p and brown mess. I clean out what I could and swilled out the reservoir with fresh fluid but only small
dribbles of fluid come out when I pump it (no resistance by the way). I might end up buying
a generic replacement m/c and lever but before that I figured I'd try and clean the guts of it.
Is there a magic circlip at the lever end under the boot ? Strangely the CMSNL diagram doesn't show anything..
and it was getting dark last night when I was fiddling with it

http://www.cmsnl.com/suzuki-gp100-1978- ... IG-58.html

All the best

JS

Re: Cleaning master cylinder

Posted: Fri Apr 04, 2014 1:09 pm
by Craig380
Not sure with your specific M/C but if you remove the boot at the lever end and shine a light, you'll probably find a circlip that's WAY buried in there. You need a pair of long, straight, thin circlip pliers.

Re: Cleaning master cylinder

Posted: Fri Apr 04, 2014 3:04 pm
by daxman
Thanks for the reply - Manged to prise out old boot (in a dozen pieces :roll: ) and peered down the recess but nothing that look like a circlip. I'm betting though its corroded to b*ggery. Will persevere a little longer..

Cheers

JS

Re: Cleaning master cylinder

Posted: Fri Apr 04, 2014 6:36 pm
by sportston
you might find it easier and cheaper to get a new cb400 master cylinder off ebay for £14.50 like this
http://www.ebay.co.uk/itm/Front-Brake-M ... 4170d1bac7
or if you're willingto wait for it to come from china it costs on £12.50
Both come with new lever and brake switch and include postage.
http://www.ebay.co.uk/itm/Front-Brake-M ... 4168da5968
Now you can't expect to get better than that for value for money. It might spoil the originality but it will fit and work fine. I got one on my gt380.

Re: Cleaning master cylinder

Posted: Sat Apr 05, 2014 12:01 pm
by daxman
Brilliant thanks - think that's what I'll do (new M/C that is)

In daylight I could just make out something that looked a bit like a circlip but really for the money
it doesn't seem worth pursuing further.

Thanks all :up:

JS

Re: Cleaning master cylinder

Posted: Sat Apr 05, 2014 3:13 pm
by sportston
Glad to be of help. It definitely makes life a lot easier than having to recon the standard one that isn't very good at the best of times so I've been told.