fork sound

[Random13]

Hi ,

I am starting to notice a click or rather sometime bang from my forks. it only happened since winter started , can it be due to oil that it has lost its qualities and during cold it gets stiff and plays up ?

thanks in advance

[pdg]

When does it specifically happen - when going over a bump or say when you brake?
____________________
Any and all advice given should not be followed - if you have to ask it means you don't know so get a man in to do it for you.

[Random13]

I can hear it when stand still and turning the steering side to side . This is not very often.

but the clicking in on braking I would say

[CaNsA]

Headstock bearings.

[pdg]

[whitedevil]

You can also tip the bike towards you onto the side stand so the front wheel lifts off the ground, now turn the steering lock to lock slowly, you should feel any notchiness if present.
____________________
GPZ500 sold ~ CBR600FS-2 sold ~ ZX6R sold ~ Street Triple R

[pdg]

[MarkJ]

I once fitted some headstock bearings with rubbish seals, which let dirt get past the seals which would make the steering click as you turned it, so could be headstock bearings. Possibly could be fork bushes being worn. Unlikely to be wheel bearings but worth checking just to be sure.

[pdg]

There's also the possibility of loose pinch/spindle bolts, loose caliper, cracked frame............
____________________
Any and all advice given should not be followed - if you have to ask it means you don't know so get a man in to do it for you.

[MarkJ]

Some bikes also have a bit of space inside the calipers so the pads can move a little, which can mean they click a little when being rocked back and forth as they move up and down in the caliper, the Honda Hornet does this. What bike is it?

[mentalboy]

Is it the same 'bang' as mentioned here?
It is easier to keep a thread going on the same topic, rather than starting a new one and needing to repeat all your details.
____________________
Make mine a Corona.

[Random13]

nope it is not the same bang .

it is a cbr 600 . i did lift the front and moved it side to side but still no sound or roughness.

short of ideas on what it can be

[RhynoCZ]

Are all the cables routed properly? Also check the front wheel bearings and tightness. Also the pads might be moving there, to check that, pull the brake lever so the pads are fixed (pushed onto the discs), then do the left right thing. My pads do it, they are nearly done though - Nissin 4 pot calipers from the late 80's.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Suntan Sid]

Had the same on my CBR 600.
It would make a clunk when you first sat on the bike and also when you stopped, it was more noticable braking from low speed.

The head stock bearings were not seated correctly, the castlated lock ring had not been tightened correctly and the bearings had worked loose!
____________________
"Everybody needs money, that's why they call it money!"

[Random13]

many thanks ,



@RhynoCZ, what do you mean by this ?


pull the brake lever so the pads are fixed (pushed onto the discs), then do the left right thing

[RhynoCZ]

Me engrish no good here.

When you generate pressure by squeezing the brake lever, that pressure will push the pots out of the calipers. Those pots will push the pads onto the brake discs. This way the pads may not move freely, as they would when there is no pressure in the system and the pots are back in the calipers. More worn the pads are, more space to move they've got.

I experienced the same thing as you have. The motorcycle was standing still, I was checking whether the bars were locked (moved the bars left/right a bit) and I heard knocking. I found out there's freeplay in the pads, I could literary move them with my finger and reproduce the knocking sound.

Also, moving pads may result in the good old squeaking, when making full stop. Which mine do, a lot. Yes, I'm getting a fresh set of pads for the spring.

If that does not make any sense, then I am done here.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Random13]

makes perfect sense, thanks

[YBR Ric]

+1 for brake pads moving around in the calipers.

I adjusted my headstock bearings twice before realising this, but at least they ended up with better clearance than when it came off the assembly line

[RhynoCZ]