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Author Topic: KLR You Experienced? Not really.  (Read 26458 times)

Offline teazer

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Re: KLR You Experienced? Not really.
« Reply #490 on: Jun 17, 2019, 17:04:39 »
Sounds like air at a high point in the line.  If so remove caliper and raise it so the bleed nipple is at the highest point.  Insert a piece of wood or steel to keep the pads apart and go ahead and bleed the brakes.  Air should travel to the highest point - the bleed nipple.

Offline Jimbonaut

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Re: KLR You Experienced? Not really.
« Reply #491 on: Jun 17, 2019, 17:22:15 »
Sounds like air at a high point in the line.  If so remove caliper and raise it so the bleed nipple is at the highest point.  Insert a piece of wood or steel to keep the pads apart and go ahead and bleed the brakes.  Air should travel to the highest point - the bleed nipple.
That sounds like another good approach - thanks for the suggestion.  I think I may try this first, and then if that doesn't work I'll weigh down the pedal and leave it overnight.
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline Jimbonaut

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Re: KLR You Experienced? Not really.
« Reply #492 on: Jun 17, 2019, 20:07:00 »
Well, not a total success but definite improvement. Pulled the caliper and cable-tied it up to the grab rail, then bled it. Itís biting better for sure, guess some bubbles came out but canít be sure. Also adjusted the bolt on the master cylinder to cut out the free play on the pedal - way out of spec but at least the brake is biting now.

Leads me to wonder if itís something else. With the adjust bolt waaaay out Iím wondering if it may have something to do with the hose itself - maybe switching them out to steel lines would help. Certainly couldnít hurt.


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Offline CrabsAndCylinders

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Re: KLR You Experienced? Not really.
« Reply #493 on: Jun 17, 2019, 22:05:35 »
Cool, I can make that happen.  Right now there are indeed humps in the line, but if I remove the caliper from the rotor and straighten out the brake line so that the caliper is lower than the master cylinder and reservoir, and then apply weight overnight to the lever would that be the way to do it?
If then you do that then you might want to put something in between the pads first, to make it easier to pry the pads apart before you re-install the caliper.
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Offline teazer

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Re: KLR You Experienced? Not really.
« Reply #494 on: Jun 17, 2019, 23:18:29 »
One more thing to try.  Bleed the system at the master cylinder banjo bolt.  Air often gets trapped there.  Bleed it by applying pressure and then crack the bolt loose.  Then tighten it before you release the pressure.

A stainless line would probably help.  certainly won't hurt.  Did the caliper take a hit by any chance?  the mounting bracket might be tweaked slightly.  The way to prove/disprove that is to loosen the mounting bolts and apply the brake.  If it now has a firm feel, the mounting bracket may be slightly bent.  You can also look at the caliper as you apply the brake (with it still bolted in place, and see if it twists or flexes when the brake is applied. 

Old RDs and XS Yamahas are famous for not sitting straight and often need a thin washer (shim) under one bolt to pull it back straight.
« Last Edit: Jun 17, 2019, 23:22:34 by teazer »