Brakes

[Headache]

My 885 tigger was bought with a partly repaired accident and i have a few problems with it which i am trying to solve. If you use the back brake at slow speeds it pulses, is this normal or is the axle deformed.

 br Andy

[tigerhund]

Definitely not normal:  I would guess bent axle, warped brake disk, or some other sort of alignment disorder.  Good luck.

[Brother Number One]

Disc, disc, disc and nothing to do with the accident.  Put a wavy one on and let us all know if they are any good. :D

[Jim S]

I would agree, disc, a warp in the disk would cause a pulse or shudder at speed. Although, I'v seen stuck caliper slides have a similar effect, as it pushes from the piston side only, end result? Warped disc!



Check out the caliper first, if all's moving fine then move on to the disc.

[Brother Number One]

Aye, and they rarely move fine and always need attention.  The caliper moves on two pegs which are supposed to be filled with copperslip.  I had to lever the two pieces apart.  The copperslip had gone hard, like clay.  Cleaning this up and reassembling with fresh copperslip greatly improves these (frankly rubbish) brakes :shock:

[TigerTrax]

Check the rear rotor for any build-up of disk pad residue, that will make it feel like a warped disk. Clean it off if you find any.



If you don't find any .....



Set that thing up on a center support; Spin the rear wheel;  watch the rear rotor. If it waves ... probablya warped disk.

[Jim S]

:lol:  :lol:  :lol:



"waves"



 :lol:  :lol:  :lol:



I think you'd struggle to keep your foot on the brake pedal if you can see the warp!  



I'd check out the calpier slides, sounds most likely.

[Brother Number One]

I think you'd struggle to keep your foot on the brake pedal if you can see the warp!  

Aye, you need one of those guage things on a stand; looks a bit like something from a chamistry set.  I'm lucky my dad (from Liverpool) spent his working life pinching such things from work.

[Guest]

Aye, you need one of those guage things on a stand;

Known as a "dial gauge indicator"