What is going on with my brakes?

[bwringer]

Looks like they used fuel line, most of which is not compatible with brake fluid. Brake fluid is surprisingly damaging stuff to a lot of materials.

I had to make one of these cheapie M/Cs work a while back, and after a few failures I did some testing with several samples of tubing from my stash dunked into brake fluid overnight. I ended up using a chunk of translucent yellow Tygon tubing normally used for fuel lines. In order to form the tight U-bend without kinking or collapsing the soft tubing, I pushed the Tygon tubing over a piece of copper 1/4" tubing and dipped it into boiling water for a minute. A quick dunk in cold water to cool, and the "U" shape was permanent.

[alkswheetinjur]

Think the name of the seller sums it up "Topfashion2000" sells more woman's stuff than bike stuff.
as said before get a combined master cylinder and reservoir, junk the chinnese stuff.
What was wrong with your original master cylinder?

Nothing was wrong with it just wanted to go with a different style lever. I'm also running pods, header wrap and chopped fenders if your looking for something to criticize.

[fastbysuzuki]

Nothing was wrong with it just wanted to go with a different style lever. I'm also running pods, header wrap and chopped fenders if your looking for something to criticize.

some what touchy, I only asked "what was wrong with your original master cylinder"

[hillsy]

Looks like they used fuel line, most of which is not compatible with brake fluid.

Bingo. You need to use a non-hygroscopic hose. I doubt the seals inside the MC will be an issue as they will be sourced from a brake supplier.

[bsharpish]

Do you know what brand the M/C is? I'm looking for one differently configured from my stock one, and don't want that one.....
Im going to try the route of a different OEM unit.

Ive always had tremendous success with RC51 (SP1) Honda units - very high quality, 19mm piston , cheap on eBay

used them on race bikes, road bikes, with 2-6 piston calipers ........ great feel with progressive action and non wooden feel- A huge upgrade on hayabusa's , SRAD's,super hawks and bandits

[dorkburger]

Thank you sir. Appreciated.

[alke46]

Looks like they used fuel line, most of which is not compatible with brake fluid. Brake fluid is surprisingly damaging stuff to a lot of materials.

I had to make one of these cheapie M/Cs work a while back, and after a few failures I did some testing with several samples of tubing from my stash dunked into brake fluid overnight. I ended up using a chunk of translucent yellow Tygon tubing normally used for fuel lines. In order to form the tight U-bend without kinking or collapsing the soft tubing, I pushed the Tygon tubing over a piece of copper 1/4" tubing and dipped it into boiling water for a minute. A quick dunk in cold water to cool, and the "U" shape was permanent.

Brian, what did you do with the copper tubing then? Just leave it inside the Tygon?