Front brake not working


Information and questions on GL1200 Goldwings (1984-1987)
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rayford213
Posts: 2
Joined: Sat Nov 08, 2014 5:02 pm
Location: Lexington,Ky
Motorcycle: 2002 Honda Goldwing 1800

Front brake not working

Postby rayford213 » Wed Feb 18, 2015 11:26 pm



Front brake not working. Brake hand grip when applied has no resistance. Fluid in the cylinder is full. Just no front hand brake resistance. Rear brake (foot) works fine. Can anyone advise?



rayford213
Posts: 2
Joined: Sat Nov 08, 2014 5:02 pm
Location: Lexington,Ky
Motorcycle: 2002 Honda Goldwing 1800

Re: Front brake not working

Postby rayford213 » Wed Feb 18, 2015 11:29 pm

I have a 84 Gl Asp 1200

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WINGER3
Posts: 202
Joined: Fri Oct 05, 2012 11:41 pm
Location: Orange, California
Motorcycle: current 2005 GL1800ABS previous GL1200A GL1500K GL1100A CB350 GL650I VFR1000 ST1100 GL1200A GL1500I + many other brands

Re: Front brake not working

Postby WINGER3 » Thu Feb 19, 2015 12:55 am

rayford213 wrote:Front brake not working. Brake hand grip when applied has no resistance. Fluid in the cylinder is full. Just no front hand brake resistance. Rear brake (foot) works fine. Can anyone advise?

Hi Rayford213; (1) I would have to say the piston/slave cylinder in the master cylinder has no seal, that allows the brake fluid to bypass the piston/slave cylinder so no compression to force the brakes to work.

(2) The hole in the fluid reservoir is pluged so no fluid can go into the piston/slave cylinder to make compression to work the brakes.

In #1 you will need a rebuild kit for the master cylinder, in #2 you just have to clean out all the gunk in the resevoir and clean the hole to the piston/slave cylinder.

After clean out or rebuild you need to flush out the brake cylinders to clean out the brake line and brake cylinder, use new brake fluid to flush out the system, it's cheap and be very carefull you don't get it on the paint. I hope this is your problem but might be something else I can't think of at the moment. Good luck. Bob :mrgreen:
DON'T DESTROY IT-RESTORE IT

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WingAdmin
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Re: Front brake not working

Postby WingAdmin » Thu Feb 19, 2015 2:17 pm

First thing I would do is bleed the front brakes - if there's air in the system, you'll get that kind of response. If there is air, then you have to figure out how it got there.

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86pearlblue
Posts: 100
Joined: Sat Sep 22, 2012 6:04 pm
Location: Hartford, Connecticut
Motorcycle: 1986 gl1200a

Re: Front brake not working

Postby 86pearlblue » Sat Feb 21, 2015 8:42 am

air often gets trapped in the system up at the master. normal bleeding may not dislodge the bubble. What does seem to work is cracking loose the banjo bolt coming out of the master and bleeding it there for a couple of pumps.




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