Front brake will not release


Information and questions on GL1500 Goldwings (1988-2000)
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Retired
Posts: 4
Joined: Tue Feb 19, 2013 5:23 pm
Location: Live Oak, Florida
Motorcycle: 1988 GL1500
Goldwing

Front brake will not release

Post by Retired » Tue Feb 19, 2013 5:57 pm



1988 GL1500. Front brake would not release. Could release it by relieving fluid pressure by opening bleeder valve on caliper and wheel would turn. Rebuilt both caliper and master cylinder. Worked fine for about ten miles, now will not release again. Thought it might be the caliper sticking even after being rebuilt, but the lever on the master cylinder is fully pressurized before it is pulled in (It will not pull in,full pressure staying in system without pulling lever- somehow pressure is not releasing). Piston in master cylinder IS returning to released position, but pressure in system is not releasing. Any suggestions?



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bellboy40
Posts: 612
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Location: Brewton, AL
Motorcycle: 2000 GL1500SE Candy Spectra Red
1994 GL1500SE Pearl Bermuda Green

Re: Front brake will not release

Post by bellboy40 » Tue Feb 19, 2013 6:58 pm

I believe the return port in the master cylinder is clogged up not letting the brake fluid return back to the master cylinder. It is a very small hole in the bottom of the master cylinder. You will need to push something in the hole like a single wire from a wire brush. Also a guitar string works well for that.
Last edited by bellboy40 on Tue Feb 19, 2013 7:12 pm, edited 1 time in total.

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WingAdmin
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Re: Front brake will not release

Post by WingAdmin » Tue Feb 19, 2013 7:10 pm

Yup. It doesn't happen that often on the 1500, far more common the 4 cylinder Wings, but it can (and does) happen. You need to flush your brake fluid more often!

I use a single wire clipped from a wire brush, hold it in a pair of needle nose pliers, and ream out that tiny return port with it. That clears it out and fixes the problem.

Retired
Posts: 4
Joined: Tue Feb 19, 2013 5:23 pm
Location: Live Oak, Florida
Motorcycle: 1988 GL1500
Goldwing

Re: Front brake will not release

Post by Retired » Wed Feb 20, 2013 2:59 pm

I had shot it with brake cleaner, but obviously that didn't clear it. I have a tool with several different tips for cleaning welding torch tips and swallowing my pride went back and did what you said. It worked great. Thanks for teaching an old dog not to be too proud to ask and to actually listen when someone answers.

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bellboy40
Posts: 612
Joined: Fri Nov 27, 2009 1:13 pm
Location: Brewton, AL
Motorcycle: 2000 GL1500SE Candy Spectra Red
1994 GL1500SE Pearl Bermuda Green

Re: Front brake will not release

Post by bellboy40 » Wed Feb 20, 2013 3:23 pm

Great to hear you got it sorted out. Thanks for the update.

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RoadRogue
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Location: southern Okanogan BC, Canada
Motorcycle: 1997 1500SE

Re: Front brake will not release

Post by RoadRogue » Wed Feb 20, 2013 9:42 pm

Another happy ending, we love to hear back that the problem has been solved. 8-)
Ride safe, Todd
Over night campers welcome

Page3man
Posts: 2
Joined: Mon Dec 31, 2018 3:38 pm
Location: Kissimmee, Florida
Motorcycle: 1994 Honda Goldwing GL1500 with MotorTrike kit.

Re: Front brake will not release

Post by Page3man » Mon Dec 31, 2018 4:24 pm

A few weeks ago, I had the exact same issue on my 1994 Golding with a MotorTrike kit installed on it. I removed the hand brake lever and was able to make it home. I did not rebuild the master cylinder or caliper. I removed all the old brake fluid (bleed the brakes) and replaced it with fresh Dot4 fluid. All was fine until today. I took it for a short ride and noticed the same thing was happening again. I searched the Internet and found this thread. I did what was suggested and now the brake lever is working fine again. I will continue to monitor it, of course. Thanks for all for their expertise and advice. It may have saved me from rebuilding either the master cylinder or calipers. We will see.

Page3man
Posts: 2
Joined: Mon Dec 31, 2018 3:38 pm
Location: Kissimmee, Florida
Motorcycle: 1994 Honda Goldwing GL1500 with MotorTrike kit.

Re: Front brake will not release

Post by Page3man » Fri Jan 04, 2019 11:48 am

Well, I went for a ride on Jan 2nd, and the same thing happened. So this time, I removed the master cylinder and took it all apart. I cleaned it all up and then realized that there was something under the little stainless steel cover inside the fluid chamber. I carefully removed the cover and sure enough after a little scraping, I saw the very small hole that was mentioned in this thread. It was completely clogged! I had some reamers that I had used years ago to ream out carburetor jets and I used one of them to clean out the hole. I was able to put it all back together using all the old parts, bled the brakes, and took it for a ride. All is good. Actually, the lever now has a little more lever action before it applies the front brake. I may order a rebuild kit and rebuild the master cylinder anyway, just to know it's done. I bought this '94 Goldwing Trike about 2 years ago and I was able to talk to the previous owner but he really didn't have much information for me. I guess he didn't have it very long until he traded it for a new Harley trike at the dealership. I feel like I should go through the rear master cylinder and clutch master cylinder as well, just to know that they are ok.



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