Yamaha R6 Rear Brake Problem

[FJRider]

There is no warp. Never had a problem before the chain adjustment. I have travelled around 1600 km since the adjhstment.

1600 km's around the East cape ... I would expect some adjustment needed ...

[Moise]

Don't assume it's the chain adjustment - faults can develop in 1600 km. It's difficult to see how a chain adjustment could cause the problem if done correctly.

Have you taken the pads out of the caliper and inspected it?

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[jasonu]

Did you check the powerband?

[R650R]

I'm inclined to think wheel bearing failure, bike is 16 years old after all. Especially if the rim is hot, how hot is the rim?
Think recent chain adjustment is just coincidental.
Can you smell burnt asbestos type hot brake smell (unmistakeable)? if not then its wheel bearing.
I've had a wheel bearing fail on a truck trailer, it got the rim hot far fatser than any set of draggy brake faults ive ever had.

Get to somewhere local where you can pop the wheel out and check the bearing.

[FJRider]

Did you check the powerband?

The R6's came out with the blue ones ... right ... ???

[FJRider]

Get to somewhere local where you can pop the wheel out and check the bearing.

If it is the bearing ... the brake caliper will be the only thing keeping the wheel upright and the bearing (roughly) in place ...

Pull the axle and it could result in a pile of very small marbles ...

[R650R]

If it is the bearing ... the brake caliper will be the only thing keeping the wheel upright and the bearing (roughly) in place ...

Pull the axle and it could result in a pile of very small marbles ...

Better that while still near civilisation than to have it fail in middle of nowhere with fire risk also.
And if it were to fail catastropfically and lock the rear wheel mid corner.....
Better 3-4 days on the beach at Tolga staying in the pub/holiday park waiting for parts than a $800 tow truck bill and or fire service bill....

[FJRider]

Better that while still near civilisation than to have it fail in middle of nowhere with fire risk also.
And if it were to fail catastropfically and lock the rear wheel mid corner.....
Better 3-4 days on the beach at Tolga staying in the pub/holiday park waiting for parts than a $800 tow truck bill and or fire service bill....

True ... no more word from the OP though. Perhaps he loosened the wheel nut a bit/slackened the chain and went for a ride to test it ... and not got back yet.

[Katman]

Quite frankly, the only advice that should be given to someone with as few mechanical clues as the OP clearly has, is take it to a mechanic.

[AllanB]

Quite frankly, the only advice that should be given to someone with as few mechanical clues as the OP clearly has, is take it to a mechanic.

I'm leaning towards the above .....

[CB ARGH]

Thanks for all your help guys. I've fixed the problem. I loosened off the calliper adjuster bolt and gave it a good wriggle around then re tightened it. Worked a treat.

[JATZ]

I'm inclined to think wheel bearing failure, bike is 16 years old after all. Especially if the rim is hot, how hot is the rim?
Think recent chain adjustment is just coincidental.
Can you smell burnt asbestos type hot brake smell (unmistakeable)? if not then its wheel bearing.
I've had a wheel bearing fail on a truck trailer, it got the rim hot far fatser than any set of draggy brake faults ive ever had.

Get to somewhere local where you can pop the wheel out and check the bearing.

I think if a bearing failed you'd know about it from the noise. I've had them fail on the bike and it makes a god awfull sound. I've also had them let go on orchard mowers and mulchers and you can hear them over the sound of a tractor while wearing radio ear muffs. I didn't hear one fail on the boat trailer and like you said it heated up the wheel so much you couldn't touch it, also shredded the tyre.
Good to hear your back on the road OP
:

[AllanB]

Thanks for all your help guys. I've fixed the problem. I loosened off the calliper adjuster bolt and gave it a good wriggle around then re tightened it. Worked a treat.

Unsure what bolt you refer to as they tend to be solidly mounted with no 'adjustment'. Anyway - fixed it, did you check the pads? If it's been rubbing for that long ........

[Katman]

Unsure what bolt you refer to as they tend to be solidly mounted with no 'adjustment'.

It's just further reinforcement of the OP's cluelessness.

[FJRider]

Unsure what bolt you refer to as they tend to be solidly mounted with no 'adjustment'. Anyway - fixed it, did you check the pads? If it's been rubbing for that long ........

I've seen rear calipers removed (for whatever reason) and later remounted with one washer under one end of the caliper. As the caliper was then mounted on an angle ... so it was that later the pads were also worn on an angle.

He did complain of poor rear braking and rubbing sounds too ...