Juddery Front Brake - SV650.org

chezza · 30-10-12, 09:31 AM

Morning All,

Apologies if this has been covered before, I did do a quick forum search...

My 2011 Pointy has developed a juddery feeling when slowly squeezing the front brake lever. If squeezed hard then it feels fine. The brakes appear to be working fine and have loads of life left in the pads and the discs dont appear to be warped, actually the juddering is felt even when squeezed at a standstill so its not disc or pad releated.

Any ideas ? I have checked the lever itself and it seems ok, not sure if the pivot point may need greasing ? but maybe the slave (or is it master) cylinder is sticking ? not sure, as you can tell I'm no mech.

Cheers
Gav.

Bibio · 30-10-12, 09:40 AM

could be glazed pads, buildup on the disc or a loose bolt.

chezza · 30-10-12, 09:57 AM

Hi Bibio, thanks for the reply. The juddering happens at a standstill aswell, but only if squeezed slowly, so instead of smooth and progressive it feels juddery as if sticking to something.... strange one.

Bibio · 30-10-12, 10:08 AM

are you on about the lever when you pull it in at standstill?

chezza · 30-10-12, 10:13 AM

yeah...

Cheers

Bibio · 30-10-12, 10:17 AM

that's not good. i would start with lubing up the pivot point first with white spray grease or chain lube and see how it goes. if that dosen't fix it then i would look at the MC by taking off the lever and pushing the piston with something blunt and check for roughness.

yorkie_chris · 30-10-12, 10:22 AM

Lube the pivot for the lever.

chezza · 30-10-12, 10:24 AM

Cheers guys will give that a go tonight when I get in...

ThePone · 30-10-12, 01:41 PM

I had exactly this and it was cured by taking of the brake lever and putting a small blob of grease on the head of the piston where the brake lever touches the master cylinder.

Then put it back together!

chezza · 05-11-12, 01:57 PM

Cheers guys, got this sorted, the pivot bolt was dry as a.... so blob of grease through there and lovely and smooth now.

Thanks for all your help !

30-10-12, 09:31 AM	#1
chezza Member Join Date: Jan 2012 Posts: 147	Juddery Front Brake Morning All, Apologies if this has been covered before, I did do a quick forum search... My 2011 Pointy has developed a juddery feeling when slowly squeezing the front brake lever. If squeezed hard then it feels fine. The brakes appear to be working fine and have loads of life left in the pads and the discs dont appear to be warped, actually the juddering is felt even when squeezed at a standstill so its not disc or pad releated. Any ideas ? I have checked the lever itself and it seems ok, not sure if the pivot point may need greasing ? but maybe the slave (or is it master) cylinder is sticking ? not sure, as you can tell I'm no mech. Cheers Gav.

30-10-12, 09:40 AM	#2
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: Juddery Front Brake could be glazed pads, buildup on the disc or a loose bolt.

30-10-12, 09:57 AM	#3
chezza Member Join Date: Jan 2012 Posts: 147	Re: Juddery Front Brake Hi Bibio, thanks for the reply. The juddering happens at a standstill aswell, but only if squeezed slowly, so instead of smooth and progressive it feels juddery as if sticking to something.... strange one.

30-10-12, 10:08 AM	#4
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: Juddery Front Brake are you on about the lever when you pull it in at standstill?

30-10-12, 10:13 AM	#5
chezza Member Join Date: Jan 2012 Posts: 147	Re: Juddery Front Brake yeah... Cheers

30-10-12, 10:17 AM	#6
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: Juddery Front Brake that's not good. i would start with lubing up the pivot point first with white spray grease or chain lube and see how it goes. if that dosen't fix it then i would look at the MC by taking off the lever and pushing the piston with something blunt and check for roughness.

30-10-12, 10:22 AM	#7
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Juddery Front Brake Lube the pivot for the lever. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

30-10-12, 10:24 AM	#8
chezza Member Join Date: Jan 2012 Posts: 147	Re: Juddery Front Brake Cheers guys will give that a go tonight when I get in...

30-10-12, 01:41 PM	#9
ThePone Member Join Date: Mar 2011 Location: Christchurch, Bournemouth Posts: 75	I had exactly this and it was cured by taking of the brake lever and putting a small blob of grease on the head of the piston where the brake lever touches the master cylinder. Then put it back together!

05-11-12, 01:57 PM	#10
chezza Member Join Date: Jan 2012 Posts: 147	Re: Juddery Front Brake Cheers guys, got this sorted, the pivot bolt was dry as a.... so blob of grease through there and lovely and smooth now. Thanks for all your help !

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