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master cylinder geometry and position.

  • Thread starter Thread starter rckrzy1
  • Start date Start date
R

rckrzy1

Guest
OK , my new to me 82 gs750T has those mild ape hanger style handle bars and that puts the master cylinder at a bad angle , atleast to me, as the fluid enters neard the inside or what becomes the upper section and what could possibly be the part of the reservoir that runs out of fluid first and could grab a fist full of air .

Am I worried about nothing ? Can I use one of those masters from a bike that has a 45 degree angle ? How important is it to have the brake line hooked to the side vs the end ? Does it matter as long as it reachs ?

BTW my current setup is very soft to me, I can bring the grip to the bar with one hand. (have replaced and bleed the fluid so the master
needs work or replaced anyway)
 
I would change the bars first, might be easier and cheaper than a new master cylinder. Go to a junkyard and sample a few bars to see what might work
 
Like you said, there's a good possibility that the master cylinder is leaking internally if you can pull the lever to the bar... but consider as well that the old original equipment rubber hoses down to the caliper don't age gracefully either. They reach a point that they don't hold pressure very well and will actually swell when you apply pressure. Consider new hoses, or even aftermarket stainless braided hoses as a cure for the pressure drop blues.
 
DaveDanger said:
Like you said, there's a good possibility that the master cylinder is leaking internally if you can pull the lever to the bar... but consider as well that the old original equipment rubber hoses down to the caliper don't age gracefully either. They reach a point that they don't hold pressure very well and will actually swell when you apply pressure. Consider new hoses, or even aftermarket stainless braided hoses as a cure for the pressure drop blues.
Click to expand...

Is there any sources for the stainless lines for single caliper front
brakes ? Or know of another modern bike with the same lenght lines?
 
DaveDanger said:
There's quite a few suppliers for these type hoses. I've seen many of them mentioned in posts here of late. Do a search on brakes, hoses, and stainless braid. You'll find several I'm sure.

These are some I located simply by googling the Web...

http://www.h-e-l.co.uk/

http://www.scootworks.com/swcart/shop/partscables.htm

http://www.cyclepages.com/ProductGroupDisp.aspx?ProductGroupID=4001261

http://www.motorbike-world.co.uk/frame-detail.asp?PAGE=/goodridge-motorcycle-hoses.htm
Click to expand...

Problem is none of these help me. I have NO experience with brake lines and these sights either list bikes that do not include mine or require you know what size you need . I know it's 43" long but what modern bike might have that size ?
 
You may actually have to browse the sites (I'd ignore the U.K. sites to start with) and locate an 800 # or something and give them a call, personally I always look for a contact e-mail address and send them a query along the lines of what I need. These folks are usually pretty willing to work with you in the effort to make a sale. Tell them what year/make/model you have and see if they have some application charts other than what's on their site. Obviously they'll figure to make more sales to later model bikes so that's where they'll concentrate their published data.

I personally don't know of any specific bikes that have the same length and size hoses that yours may have. That'd take someone with a huge amount of hands-on experience with a very wide range of brands, makes and models. I suspect you'll have better luck trying to aftermarket shops and begging their assistance to help you out.

I know as well that's there's folks here on this site that have purchased braided lines from various sources and can help you determine who to deal with. Give them a few days to see these posts and the advice will drift in.
 
We do not carry parts for this bike.

We do not carry parts for this bike.

And here is the typical response I have gotten from the link posted.


We do not carry parts for this bike.

At 09:10 AM 1/2/2006 -0600, you wrote:
I need the front brake hose for a 82 suzuki gs750t , part# 59480-45912 ,
it is 43" long and has 1/8 written on it, it is a single caliper brake. Can
you tell me what kit or parts to order ?


This getting OLD. Can someone with a kit make me a line ?
 
Re: We do not carry parts for this bike.

Re: We do not carry parts for this bike.

www.paragonperformance.com

If Paragon does not make a kit that will fit your bike, then you can get 50% off of your order. They have links that show you what fittings are which.

http://www.paragonperformance.com/Fitting photos.html

http://www.paragonperformance.com/Fitting photos2.html

And go ahead and buy a rebuild kit for your master cylinder.

http://www.crc2onlinecatalog.com/master_cylinder_rebuild_kits.htm

Click on application chart link to find which one you need.

And if you don't have a manual, you need one....
ebay manual link

Forum Search and Google are your friends
 
Ok this is looking better. Can anyone tell me the inner diameter I have or should get ? Like I said mine states 1/8 on the brake line but NO ONE
makes one that small so either I need to upgrade or my hose is marked wrong.

And what do you crimp on the bango with barb fitting with ?

BTW I do have the factory service manual.
 
rckrzy1 said:
BTW I do have the factory service manual.
Click to expand...

Does your master cylinder look like the one in the picture in your manual?

If so, then I'll bet you $10 you can fix your problem with the links I gave you. :wink: :wink:
 
JT said:
rckrzy1 said:
BTW I do have the factory service manual.
Click to expand...

Does your master cylinder look like the one in the picture in your manual?

If so, then I'll bet you $10 you can fix your problem with the links I gave you. :wink: :wink:
Click to expand...


well let's see, the link for the ms rebuild kit does NOT have the 82 GS750T model listed, I win.

And my manual for what ever reason has no specifics on the "T" , it
must have been a late add on or such.
 
rckrzy1 said:
JT said:
rckrzy1 said:
BTW I do have the factory service manual.
Click to expand...

Does your master cylinder look like the one in the picture in your manual?

If so, then I'll bet you $10 you can fix your problem with the links I gave you. :wink: :wink:
Click to expand...


well let's see, the link for the ms rebuild kit does NOT have the 82 GS750T model listed, I win.

And my manual for what ever reason has no specifics on the "T" , it
must have been a late add on or such.
Click to expand...

I can't help you then, you have no clue. Sorry to be a jerk, but you are not listening. Other than browsing the sites, you never even tried. With these bikes, not everything will be off the shelf or an easy fix, get used to it. The parts are available, but you have to work for it.

Paragon makes custom lines, or if they don't have the kit you need for your bike, they will make one for 50% off. Tell them what you have and they can figure it out.

Cycle Recycle II has the parts you need, but you may have to call them. If they don't have it, or are not willing to help you, then send me your address and I'll send you 10 crisp $1 bills Most people on this forum will back me up on the fact that they have it and that I am good for the money if they don't. BTW -(Don't let the low post count fool ya, I've been in the saddle a while and know where to get parts.... :wink: :wink: )

And last but not least, The Clymer manual link I gave you covers the "T".

www.bikebandit.com has most of the master cylinder parts you may need too. I'll let you look that up.

Now I'm done with you...... Good luck!



:lol: :lol:
 
Brake lines can be fabricated. That is not an issue. Measure what lengths you need and contact that company. The banjo fitting are universal. Just tell them if you need angles or straight fittings. I am not big on ape hanger bars. I personally think they are dangerous but then I am old. But hey I thought they were stupid when Peter Fonda had them on the Capt. America bike and I was a teenager then. :lol:
 
Thanks JT... I was beginning to think I was talk'n to a stone wall.
 
Your welcome Dave...

BTW - You are dealing with a hose that holds pressure. 1/8 refers to wall thickness.
 
Cajun Cycler said:
Brake lines can be fabricated. That is not an issue. Measure what lengths you need and contact that company. The banjo fitting are universal. Just tell them if you need angles or straight fittings. I am not big on ape hanger bars. I personally think they are dangerous but then I am old. But hey I thought they were stupid when Peter Fonda had them on the Capt. America bike and I was a teenager then. :lol:
Click to expand...

These are the "factory" handle bars as best as I can tell.
 
Makes no difference. the only thing the brake line company will want to know is the length of the line needed, include the banjo fittings in the length. If you have dual front brakes you will have to figure the lines from each brake caliper to the branch off fitting on the fork yoke.

BTW. Suzuki never fit any of their bikes with ape hangers. They did have some silly buckhorn bars on the L models. Since the bars are a standard 7/8" chrome bar, they could have come from anywhere, Flanders for example. Handlebars are one of the easiest modifications one can make on a motorcycle, metric or American. Harley people do it all the time, mostly because they have to.
 
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