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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: thetailwind on August 08, 2017, 06:23:11 PM

Title: K100LT Weak Brakes
Post by: thetailwind on August 08, 2017, 06:23:11 PM
Hello, I have a K100LT w/abs. I'm in the process of restoring it and I changed the brake fluid. I used a mityvac and have bleed many motorcycle brakes before. The lever feel solid and the rear brake feels solid as well. I slammed on the brakes pretty hard in the way that my other bikes would throw me over the handle bars but this bike brings me to a gradual stop. I have not replaced the brake pads yet and prior to me it had been sitting for 10 years. I've never known pads to just go bad. Is this possible? I have ridden 10 miles intentionally hitting the brakes to see if I could wear any residual film or what have you from 10 years of sitting.

I looked over the soft lines and I have seen no obvious bulging.

Ideas?
Title: Re: K100LT Weak Brakes
Post by: Filmcamera on August 08, 2017, 07:04:16 PM
I had a similiar issue with my brakes when I restored my bike.  It turned out that even though I thought I had bled and rebled the brakes there was still air in the lines.

I would bleed through at least three full reservoirs of fluid and try again.

It also is a good idea after that to tie the brake leave back about half way and leave it over night for an residual bubbles to rise to the surface.

Good luck
Title: Re: K100LT Weak Brakes
Post by: Martin on August 09, 2017, 02:59:50 AM
Normally vacuum bleeding gets all the air out easily. What is the condition off the discs? You could also try scuffing the pads and cleaning the discs.
Regards Martin.
Title: Re: K100LT Weak Brakes
Post by: Laitch on August 09, 2017, 05:04:29 AM
I slammed on the brakes pretty hard in the way that my other bikes would throw me over the handle bars but this bike brings me to a gradual stop.
Do you want to be thrown over the handlebars?