750 Seca Brake lines

For starters, a huge shout out to Chacal! Extremely fast and efficient service as always, the shipping speed is unbelievable!

As I am finally getting around to replacing my front tire, I thought it would be a good time to replace my brake lines, anti-dive lines, and caliper seals as mine are the originals. Before I get flamed, I am not doing the master cylinder at this time as my front brakes actually feel better than my brother's '16 Stryker, so I am holding off for awhile till I have more "play" funds....

And tips before I dig into this tomorrow, anything else I should check while the wheel is off??

 

might as well check the wheel bearings, as far as the MC goes any crap in it will end up in your lines and calipers

 

I bought my SS lines from xj4ever for my Seca 750 ...great upgrade , I did not rebuild master cylinder but did flush it out , rebuilt both calipers with all new seals .

 

Have both calipers torn down, totally cleaned and reassembled with new seals and pads. Have both anti dive units flushed out. Now waiting on the new wheel bearings that I ordered from Len last night to arrive so I can get it back together....guess I will figure out how to get the M/C out tonight to flush and clean it.

 

No need to remove MC ...pull lines off at splitter put a container below take a can of brake cleaner and spray inside of MC , flush with clean brake fluid , since lines are being replaced , this is should take care of it. I know some nasty crud came out of mine , no issues since.

 

How did you go about making sure the little pressure relief hole was clear??

 

you use a strand of wire tto clear the hole then watch for fulid to come back up through the hole when you release the lever

 

Not sure how that would be possible without removing the M/C from the bike.

 

when the mc piston moves back and forth you will see fluid spurt out the little hole I use a strand of copper wire from a larger piece of stranded wire . spin the wire like a drill bit. this is the dirty way to clean a mc but it will work. I would dissemble it myself and rebuild it . do it right the first time or do it over, what good is a bike that flys that you can not stop.

i see we are talking about a Seca remote mc not a bar mounted one that would be tough to do.

 

I have pulled the M/C, and the inside of the reservoir is spotless. All the brake fluid I have drained out of the system has been clear with a slight yellowish tinge to it. Is this little relief hole not visible on this m/c? I can pump the lever and I have pressure coming out of the line, and when I let go I can hear suction in the reservoir. Guess I will flush the resivour with brake cleaner, pump it through the M/C, then follow up with a brake fluid flush before I reinstall???

 

Can any of you gentlemen or ladies tell me how full I am supposed to do the master cylinder? Is it up to the bottom of the filler neck?

 

are you refereeing to bleeding? or filling ? If it is filling I use a long funnel and carefully add fluid till full.

 

Filling...what is considered full?? To the bottom of the filler neck?

 

Brake cleaner is a very strong solvent meant for cleaning grease off rotors and drums.
Don't put this in your m/c as it may disintegrate the rubber seals.

 

I am not normally a person who cusses alot......but anyone in the St Louis area could probably see the cloud of profanity rising in the air to the north. After 3 hours, I think I finally have this about 98% blead......whoever came up with the placement for this master cylinder.....grrrr

 

Plug, well done way to stick with it. I have had two bikes that took me a long time to bleed but both of them were clutch lines. If you plan on doing more project bikes you might want to get a vacuum pump or that large syringe style.

Sometimes it just works right and just takes a few moments to get the brake or clutch to working right.

 

I was using a mighty vac. After about two hours of trying I gave up........Ended up getting two of my teenagers out there doing it old school. Was connecting the mighty vac to a bleeder, pulling a vac. Had one son pumping the brake 3 times then holding while I cracked the bleeder for two seconds and closing. Moved back and forth between all four bleeders. The other son was in charge of keeping the m/c full.......in about 20 min I had full brakes and no air at all anymore. My wheel bearings from Chacal just arrived so now to pull the front wheel and get those in and call It done for now.

 

I was using a mighty vac. After about two hours of trying I gave up........Ended up getting two of my teenagers out there doing it old school. Was connecting the mighty vac to a bleeder, pulling a vac. Had one son pumping the brake 3 times then holding while I cracked the bleeder for two seconds and closing. Moved back and forth between all four bleeders. The other son was in charge of keeping the m/c full.......in about 20 min I had full brakes and no air at all anymore. My wheel bearings from Chacal just arrived so now to pull the front wheel and get those in and call It done for now.