Time for Brake line replacement GL1500?

Information and questions on GL1500 Goldwings (1988-2000)
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Motorcycle: 1997 GL1500 Aspencade

Time for Brake line replacement GL1500?

Postby wsunate » Thu Apr 23, 2015 9:08 am

Happy spring all!
I am experiencing some soft braking on my gl1500, more so in the rear than front. Rear caliper is at the minimum thickness, havent checked front yet. Pads are pretty new. Brake fluid is probably 3-4 years old. But I'm wondering if I'm the last wing owner to replace the brake lines! It seems I've read that brake lines should be replaced with braided. I'm now pulling a trailer with camping gear and notice the diminished braking even more when towing.
What are experiences of others?
Thanks much

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Re: Time for Brake line replacement GL1500?

Postby WingAdmin » Thu Apr 23, 2015 9:35 am

My rear brake is a little softer than I would like as well. I replaced my front lines with braided stainless - including the line for the front left caliper, which is activated by the rear pedal. I have the braided brake lines for my rear as well...but the replacement of the rear brake line requires some fairly major disassembly, so I've put it off until the next time I have things really torn apart.

That said, it's still a bit soft. I flushed and bled it last fall, with no change at all. So if a replacement of the rubber portions of the rear brake line (there are some portions of it that are fixed metal line), I may be looking at a master cylinder and/or caliper rebuild.

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Re: Time for Brake line replacement GL1500?

Postby ct1500 » Thu Apr 23, 2015 6:54 pm

Newer pads? Well, not all brake pads are created equal for stopping power and pedal feel. If a knock off bargain basement brand I would start with those as a cause.
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Re: Time for Brake line replacement GL1500?

Postby Snowmoer » Tue Apr 28, 2015 2:04 pm

I replaced both front and rear lines on my 88 due to age. I used braded. I take it you are talking about the rotor, not the caliper at being at the limit. If you are doing the work, good time to replace it. I also rebuilt all the calipers as well as the master cylinders. Just due to age of all the rubber parts. The bike now has strong brakes and I do not have to worry about it for a long time. I change the fluid every two years. It absorbs moisture and in two years it goes from clear to dark brown.

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Re: Time for Brake line replacement GL1500?

Postby harvey01 » Tue Apr 28, 2015 2:21 pm

Gosh, you don't mention what year your GL1500 is but since they stopped building them in 2000 that makes yours at least 15 years old. That is a long time for OEM brake lines. Of course then you want to look at the miles and the higher the mileage the more they probably need to be changed.

I think Honda recommends brake fluid flush and replace every two years but that would be in your service manual to reference, but your three to four years suggests a need to flush and replace to me.

Replacing the lines all the way around and a good flush may solve your problem. But as Wing Admin notes you may still need to rebuild the caliber/s and master cylinders.
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Re: Time for Brake line replacement GL1500?

Postby wsunate » Tue May 05, 2015 12:48 am

Update- I replaced the rear pads with OEM. Interesting the remaining pad on the ebc is about the same as the OEM but the OEM has the extra plate/spacer which may make it stiffer. Also replaced brake fluid. Braking improved but I feel like it should be better. Bike has 108,000 miles. Thinking about rebuilding calipers and master cylinder before replacing brake lines as my next action.
Probably should just replace lines while I'm at it.

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