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Location of back brake master cylinder on a 1985 Yamaha venture totaled 1200

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Can't find a diagram, I believe it is on the right side rear, there should be cover there, it is attached to the proportioning valve as I recall. hope that helps. Follow the front brake line back and you will find the Proportioning valve and you will find the other cylinder.

Posted on Jun 12, 2014

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Posted on Jan 02, 2017

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SOURCE: Spongy brakes after bleeding them 2 times. Should I try to bleed the master cylinder or replace it?

Honestly your guess is as good as mine. But I don't think the master cylinder is NOT bad you still have air in the system. Get a big bottle of brake fluid bleed all four sides until you run out of fluid or your brakes work properly. You should divide the bottle's content in four, then use each quantity in each side. You'll be removing air and contaminated fluid from the system. Get a small hose that fits on the bleeders and an appropriate container. I have a good feeling if you do this your brakes will work just fine. I don't know how you are bleeding the brakes. I'll let you know the proper way just in case. This is a two man job, with the wheel off, have someone start the car. Have them pump the brakes a few times to get pressure. 1With the brake pedal UP open the bleeder, 2then have your assistant press the brake pedal all the way down and leave it completely pressed down. 3Close the bleeder valve, once close and only with the valve closed have'm release the brake. Repeat as necessary, bake depressed, open valve first then press brake. DO NOT depress until valve completly closed. Close valve THEN depress. Good Luck!

Posted on May 15, 2009

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SOURCE: 2003 town and country brake problem

Did your mechanic use a DRB III or equivalent scanner before performing the bleeding procedure after installing the master cylinder? This is a requirement by the manufacturer (Chrysler) when bleeding the brake system.

Posted on May 15, 2009

  • 335 Answers

SOURCE: brake lock-up

I suspect that you have front disc and rear drum brakes.You did not say which of your brakes are locking up. I suggest that if your front brakes are locking {skid} that means your rear brakes are not engaging. If your rear brakes are locking {skid} then I suggest you have problems with park brake or brake fluid leaking onto the rear shoes.
More info would help me help you. I will check back soon.

Posted on May 21, 2009

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SOURCE: brake bleeding

if you didn't bleed the lines after putting the master in. then there is a good chance there is air in the lines now. may go through a quart of brake fluid before all the air is out. remember to start at r-rear/ l-rear/ r-front/ l-front last.will take some time. don't forget to adjust the rear brake while your there to help with the pedal

Posted on Aug 13, 2009

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1 Answer

How do you bleed the clutch master cylinder on an 08 yamaha venture


the bleeding is done at the clutch terminal; pull the clutch handle while opening the bleeder, close the bleeder, release the handle. keep doing so until the air is out. Don't forget to refill the master cylinder.

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Test to see if the brake pressure is being released at the wheels. First pump pedal several times are the wheels locked then open bleeder screw if fluid squirts out the fluid is not returning to the master cylinder then do this again this time release pressure at master cylinder wheels move then the master cylinder residual check valve has failed (need a master cylinder) if not then the flex hoses are restricted

May 07, 2014 | Cars & Trucks

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Replace brake booster


  • Slide the tube nut wrench over the brake line to the master cylinder connection. The master cylinder is normally on the driver's side of the engine bay and mounted on the firewall. Orient the wrench so that it fits over the tube nut on the end of the brake line.
  • 2Disconnect the brake line. Turn the nut counterclockwise to remove. Note the location of each brake line. There are four lines total, and they need to be put back in the same location when reinstalling the lines. You may want to mark them with masking tape and permanent marker.

  • 3Unplug the master cylinder cap electrical plug.
  • 4Remove the brake master cylinder to brake booster bolts with a socket wrench.
  • 5Back the master cylinder off the brake booster.
  • 6Unbolt the bolts holding the brake booster to the firewall on your vehicle.
  • 7Pull the cotter pin out of the brake pedal to brake booster connecting pin with a pair of pliers. This is done inside the vehicle down in the driver side foot well.
  • 8Pull the brake pedal to brake booster connecting pin out to disconnect the brake pedal from the brake booster connecting arm.
  • 9Mark and remove the vacuum hoses on the brake booster and slide the booster off the firewall.
  • 10Install the new brake booster. Installation is the reverse of removal
  • Aug 06, 2012 | 1998 Lincoln Mark VIII

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    The brake sign is on,on my dashboard ?


    Could be this...
    Master brake cylinder may be low on fluid. If you have a leak you would also have braking problems. If it is low, it may be due to thin brake pads. The pistons in each brake caliper would be further out, and they take brake fluid out of the master cylinder to do it. So, adding more fluid may turn the light off, however you should have your brake pads inspected. Also, adding more fluid now will make a big mess when the pistons are squeezed back into the calipers to accomodate new brake pads. All that fluid has to go somewhere, and it will run out the top of the master cylinder.

    Also, while your checking the fluid level look at the electrical connections on the master cylinder and make sure they are clipped all the way in.

    Aug 04, 2011 | 1999 Chevrolet Venture

    1 Answer

    I replaced master cylinder bleed brakes back brakes working but no brakes front . No brake fluid on bleeders in front . What next to do . Toyota cressida 1985 2.8i automatic


    Bleed front more. If needed, remove line from each front caliper to ensure fluid is flowing. If no fluid movement you may have a bad master cyl.

    Jan 20, 2011 | 1985 Toyota Cressida

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    How to bleed the brakes on a1999 chevrolet venture van instaslled new brake pads on front tired to bleed brake pedal all the way up when van not running - goes to floor when van is running


    Start with brake in the rear that is the farthest away from the master cylinder ( if your master cylinder is on drivers side start with passenger rear,pump up brake pedal until hard have someone else open bleeder valve until air or fluid squirts out,while holding brake pressure even if goes to the floor dont release pedal until bleeder valve is tightened or you will **** air back into the line,do this several times making sure you get a full stream of brake fluid and no air,continue to other rear wheel and then proceed to front wheel furthest from master cylinderand then final wheel. if you still don't have brakes change master cylinder and bleed all brakes again.

    Jul 05, 2010 | 2000 Chevrolet Venture

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    Brake pedal sinks 1-2 inches while holding


    Sounds like your master cylinder is shot. Go to a parking lot, stop, and pump the pedal a bunch of times. Then get out and see if there is any fluid leaks by any of the wheels. That would indicate a brake line leak. My first guess, however, is your master cylinder.

    Jun 02, 2009 | 1985 Toyota Pickup

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