SuzukiSavage.com - New 2015 S40...deceleration whine & noisy disc

Kenny G Serious Thumper Offline SuzukiSavage.com The Singles Club...LOL Posts: 1754 Robson Ranch, Denton, Texas Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #15 - 12/09/15 at 22:43:53 Stew, Where did you purchase the brake pads? Kenny G
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Rodger

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #16 - 12/10/15 at 06:14:59

@justin_o_guy2....

Seems we're talking about different things, here. The brake squeal I was getting was from front disc brake, not rear drm brake; however...

I rode to a nearby church parking lot and did some braking practice to see how the new S40 reacts to various braking procedures:

--both brakes applied medium-hard...bike squats a bit on front suspension, but stops quickly/easily.

--front disc brake only...still controllable, but more front fork squat/compression.

--rear brake only...as expected, much longer stopping distance, but controllable. No rear wheel slide, no brake squeal.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #17 - 12/10/15 at 08:49:56 Good to hear, Roger. Oversensitive rear brake was a big deal for me. I could hardly feel any feedback before it locked. No way to modulate the pressure and vary the braking force.
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Rodger

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #18 - 12/10/15 at 09:12:44

Right. While disc brakes transfer only the amount of force the operator uses, drum brakes are "self-actuating"...almost as if the turning force was "screwing" the brake shoes into the drum, increasing the braking force without the rider pushing any harder. Single-leading shoe brakes (like on rear of Savage/S40) seem to be worse for this than the double-leading shoe brakes that were on cycle front wheels before disc brakes (like on my gone-but-not-forgotten 1973 Honda CB350K4).

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stewmills Serious Thumper Offline Imagination is more important than knowledge Posts: 2641 Auburn, AL Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #19 - 12/10/15 at 13:11:26 Kenny G wrote on 12/09/15 at 22:43:53: Stew, Where did you purchase the brake pads? Kenny G Amazon. EBC Organic Brake Pads FA106 http://www.amazon.com/gp/product/B000GRZEZI?psc=1&redirect=true&ref_=oh_aui_d...
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engineer Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 872 Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #20 - 12/10/15 at 13:44:13 My belt whines on deceleration and it can also squeal pretty good during normal running. At first I thought it was gear whining. Once I realized it was the belt I tried careful alignment of the rear wheel and that didn't help. Now I periodically spray it down with WD-40 and it sounds much better.
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Rodger

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #21 - 12/11/15 at 07:16:33

Another less expensive kevlar set w/free shipping:

http://www.amazon.com/2005-2011-Suzuki-Boulevard-Kevlar-Carbon/dp/B00CQBFRDQ/...

Amazon says they fit 2005-2011 S40 Boulevard. Have no personal experience with them since I just turned over 100 miles on my 2015 and have a ways to go before OEM pad replacement.

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Albert Verdugo

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #22 - 05/06/16 at 19:25:13

I am having a similar problem with my front disk brake, it wines all the time, I started to noticed after a trip (600 miles), and I have the felling that the brakes are always braking my front wheel, not much.

I do not know if i have a warped disk or if it is something in the caliper.

What do you thing it could be Huh

?

I will upload a video in the first change i get

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #23 - 05/06/16 at 19:54:35 Pry the pads away from the disk, see if you can shift the caliper back and forth. If not, you need to clean up and lube the pins it floats on.
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #24 - 05/06/16 at 23:47:17 justin_o_guy2 wrote on 05/06/16 at 19:54:35: Pry the pads away from the disk, see if you can shift the caliper back and forth. If not, you need to clean up and lube the pins it floats on. Ok. i will do that, thanks!
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #25 - 05/07/16 at 23:03:08 How many force does the caliper piston needs to return to its original position?
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #26 - 05/07/16 at 23:14:14 Not a lot, really. You're sliding a cup in an o ring. Pushing fluid back up into the master cylinder. It's not gonna wanna move fast.
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #27 - 05/08/16 at 00:03:13 Tnx. I cleaned the piston (black thing) and purged the master cylinder, I just tested driving and braking and the noise has vanished. I should test it a little more before going to road. thanks to averyone for your advices!
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Albert Verdugo

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #28 - 05/09/16 at 17:57:07

After rolling on the city I noticed that the squeak is coming back slowly. I think the problem is in the caliper piston, it is not returning after releasing the brake lever.

I suspect 2 things

Master cylinder it's not fully sealed or

the piston has a lot of brake pad residues (I already cleaned with a toothbrush)

What do you think? Undecided

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #29 - 05/09/16 at 20:54:55 Pry the pads away from the disk. Manually shift the caliper back and forth. Hard? Clean and lube the pins.
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