• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

GS850GL Master Cylinder ID Help

  • Thread starter Thread starter itsnotpoisoned
  • Start date Start date
I

itsnotpoisoned

Guest
Hey guys, I have a 1980 GS850GL with a busted front brake master cylinder. I'm trying to figure out which one to order, as all the parts sites list two. Can anyone help? Thanks in advance!

Available parts are:

SKU: 59600-45810
PISTON & CUP SET MODEL T

and

SKU: 59600-45811
PISTON & CUP SET MODEL X

I'm hoping these photos might help:

Lettering says GS850-125674
gs850vin.jpg


mastercylinder.jpg
 
Greetings and Salutations!!

Greetings and Salutations!!

Hi Mr. itsnotpoisoned,

The Suzuki part# you want (piston-cup set) is 59600-45810, which has been superseded by 59600-45811. See this resource:

http://www.alpha-sports.com/spst/1980%20GS850GL/21.htm

The "T" is the designation for the 1980 model year. The "X" is the designation for the 1981 model year. Other designations can be found in Model Information linked on the homepage of GSR.

If I may, I'll give you the unofficial "mega-welcome". Pay particular attention to the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. There are plenty of tutorials on my site and I have links to those on Mr. bwringer's site and Mr. Matchless' site. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike! :D

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff
 
Last edited:
That looks like a 1979 version master cyl On 1980 the resivoir was square
 
SqDancerLynn1 said:
That looks like a 1979 version master cyl On 1980 the resivoir was square
Click to expand...

Lynn, was it different for the "L" models? The round ones show up in the parts fiches for the '80-'81 "L" models. Mine is square, but I don't have an "L" model.


Thank you for your indulgence,

BassCliff
 
Is this the same as the one on my dual front 750L? Cause if so I have one Ill be selling.
 
Hum I thought I edited my post for the L....Could be the L 's all used the round master because of the angle of the bars
 
The L's use the round reservoir. You may want to get another master cylinder entirely. At some point, my bike was dropped and the MC had a very similar impact mark on the body of the MC. Eventhough I replaced the reservoir with a new one, the body leaked at the impact point. The part is not hard to find, I think I paid about $25 for a replacement MC. It is a good idea to rebuilt the MC anyway or at least take it apart and clean it.
 
OK, new issue. I got the new reservoir for the replacement. However, the parts are not exact, and I'm thinking I got the wrong part, even though I ordered it specifically for the '80 850GL off of bikebandit.com.

The main issue is that the new reservoir has a plastic "Y" through the center hole in the bottom, where the screw is supposed to go. Do I just drill through that? It fits perfectly into the cylinder cup and the cap screws on tight. Not sure what is going on here. Maybe its not an '80? Is there any way to tell the specifics of the bike from the VIN?

Sorry I'm pretty new to this bike stuff. :o

Old reservoir:
850old_res.jpg


New reservoir:
850new_res.jpg
 
i think you have the wrong reservoir. Your new one looks just like the one on my 81 750L.

I wouldn't drill through the new one - maybe you need one for a 79?

Perhaps the one you're replacing was changed out with an older model ??

Hopefully someone here will recognize the broken one & id the year.
 
almarconi said:
The L's use the round reservoir. You may want to get another master cylinder entirely. At some point, my bike was dropped and the MC had a very similar impact mark on the body of the MC. Eventhough I replaced the reservoir with a new one, the body leaked at the impact point. The part is not hard to find, I think I paid about $25 for a replacement MC. It is a good idea to rebuilt the MC anyway or at least take it apart and clean it.
Click to expand...

This is great advice, and I am trying to find a complete set on ebay or something, thanks!

chef1366 said:
Buy one for a 1980 GS1100LT. It has that style M/C.
Click to expand...

I will try this one, thanks for the feedback! You guys are awesome!
 
You must log in or register to reply here.
Back
Top