Rear brake - SV650.org

ophic · 11-04-05, 11:12 PM

I was testing the stopping power of my rear brake, and i get a loud clanking when the rear locks up. Any ideas what makes this noise? Is it the engine or gearbox or chain? Does anyone else get this noise? Obviously its not something i do in normal riding.

northwind · 11-04-05, 11:16 PM

Does it still happen if you've got the clutch in? If you're doing it in gear, the engine's basically pushing against the locked wheel, so it could be that...

ophic · 12-04-05, 12:10 AM

Quote:

Originally Posted by northwind

Does it still happen if you've got the clutch in? If you're doing it in gear, the engine's basically pushing against the locked wheel, so it could be that...

i'd expect the engine to stall, although it didn't. Not tried it with the clutch in, but i'd expect it not to make the noise. Definitely something transmission related.

12-04-05, 08:43 AM

I get the same if I lock the back, if you don't release the rear it does stall. Not sure why it doesn't stall straight away mind you.
Must be that OE slipper clutch?

12-04-05, 01:50 PM

the engine will stall pretty much straight away, but unless its a prolonged rear wheel lock up, the engine will fireback into life once the brake is released! (a bit like bump starting) the clunk will almost definately be the engine cutting out !

12-04-05, 02:17 PM

Maybe a loose caliper or torque arm?

.

northwind · 12-04-05, 04:23 PM

Well, on the GS I did my DAS on, if there was a lot of rear brake going on the engine would judder like that- big clunkclunkclunk. Never done it on the SV, because I learned better on the DAS

It's the last thing the engine does before stalling, sometimes. Don't know what causes it...

12-04-05, 04:27 PM

I use the rear brake comprehensively and have never had it judder. The SV's rear brake is smooth and effective.

The judder could also be a warped disc, possibly caused by the rear wheel, when off the bike, being left disc side down and some weight put on it.

.

12-04-05, 07:43 PM

you weren't going over a cattle grid at the time where you?

12-04-05, 10:38 PM

Could be rear chatter....

I've had this a couple of times braking like foook (and going down the gears pretty sharpish). Although it only happened when coming into a roundabout from a silly speed, and braking into Mansfield at Cadwell a couple of times last year.

Dan.

11-04-05, 11:12 PM	#1
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Rear brake I was testing the stopping power of my rear brake, and i get a loud clanking when the rear locks up. Any ideas what makes this noise? Is it the engine or gearbox or chain? Does anyone else get this noise? Obviously its not something i do in normal riding. __________________ Silver SV650SK3, Fuel exhaust

11-04-05, 11:16 PM	#2
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Does it still happen if you've got the clutch in? If you're doing it in gear, the engine's basically pushing against the locked wheel, so it could be that... __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

12-04-05, 04:23 PM	#7
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Well, on the GS I did my DAS on, if there was a lot of rear brake going on the engine would judder like that- big clunkclunkclunk. Never done it on the SV, because I learned better on the DAS It's the last thing the engine does before stalling, sometimes. Don't know what causes it... __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

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12-04-05, 08:43 AM	#4
BaggaZee Guest Posts: n/a	I get the same if I lock the back, if you don't release the rear it does stall. Not sure why it doesn't stall straight away mind you. Must be that OE slipper clutch?

12-04-05, 01:50 PM	#5
sd1cko Guest Posts: n/a	the engine will stall pretty much straight away, but unless its a prolonged rear wheel lock up, the engine will fireback into life once the brake is released! (a bit like bump starting) the clunk will almost definately be the engine cutting out !

12-04-05, 02:17 PM	#6
jonboy Guest Posts: n/a	Maybe a loose caliper or torque arm? .

12-04-05, 04:27 PM	#8
jonboy Guest Posts: n/a	I use the rear brake comprehensively and have never had it judder. The SV's rear brake is smooth and effective. The judder could also be a warped disc, possibly caused by the rear wheel, when off the bike, being left disc side down and some weight put on it. .

12-04-05, 07:43 PM	#9
philc2000 Guest Posts: n/a	you weren't going over a cattle grid at the time where you?

12-04-05, 10:38 PM	#10
Dan_SV Guest Posts: n/a	Could be rear chatter.... I've had this a couple of times braking like foook (and going down the gears pretty sharpish). Although it only happened when coming into a roundabout from a silly speed, and braking into Mansfield at Cadwell a couple of times last year. Dan.