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Front Master Cylinder

  • Thread starter Thread starter Tech73
  • Start date Start date
I rebuilt my MC this summer, and the dust boot held the piston in pretty well untill I got all of the bits out. I like to use BBQ skewers to scrape crud off of parts; nicely pointed end for small holes, blunt end for the big chunks, they wont gouge the surface, and PB blaster gives a great flavor to steak tips when you're done working on the bike!

I agree with Dogma, there is a reason for that hole to be that size; much easier to manufacture if bigger. Stared at the cross-section for a while as suggested before becoming a believer, think I might have seen Elvis in there...

Cheers!
 
Bubbles are a sign that there is air in the system. They should stop after you "bleed" the system. If they don't, you have a leak. I've spent all summer trying to get my rebuilt MC to work correctly.

Putting a new used one on today if the replacement sight glass gets here in the mail.
 
I think you and I are in the same boat... I've spent all summer working on my brakes and master cylinder...

Right now, I've narrowed it down to a "leak" coming from the brake lever end... something isn't sealing correctly. So, when I grab the lever to build pressure, air seems to be coming in from the lever end.

The real bummer thing about this is that there is no master cylinder rebuild kit that I've been able to find for my bike. It's too old I guess...
 
I think you and I are in the same boat... I've spent all summer working on my brakes and master cylinder...

Right now, I've narrowed it down to a "leak" coming from the brake lever end... something isn't sealing correctly. So, when I grab the lever to build pressure, air seems to be coming in from the lever end.

The real bummer thing about this is that there is no master cylinder rebuild kit that I've been able to find for my bike. It's too old I guess...

Same problem here on my 750LN and just ordered kit thru suzuki today.NZ$106 in sales tax no problem just a wait to come from japan
 
Isn't this the part you need? Listed as PISTON/CUP SET
59600-45811 (replaces 59600-31827) 1 $44.78 $33.59

at http://www.boulevardsuzuki.com/fich...y=Motorcycles&make=SUZUKI&year=1979&fveh=2141


I think you and I are in the same boat... I've spent all summer working on my brakes and master cylinder...

Right now, I've narrowed it down to a "leak" coming from the brake lever end... something isn't sealing correctly. So, when I grab the lever to build pressure, air seems to be coming in from the lever end.

The real bummer thing about this is that there is no master cylinder rebuild kit that I've been able to find for my bike. It's too old I guess...
 
Thanks!

That's what I'm trying to figure out. I emailed them to see if that includes everything I need , or if it's just the piston. I mainly (I think) need the rubber o-ring that surrounds the piston, and the dust boot. I pretty much have everything else. But if it's the entire set (all washers, snap ring, spring, etc.) that's even better.

So, just waiting for a reply. From either them, or Z1.

And I should say, it looks like it includes everything (from the diagram) but at this point, and after this long, I'm kind of ready to be safe than sorry and order something that's not exactly what I need.
 
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