Date: 29-02-24  Time: 04:35 am

Author Topic: Rear Brake Service Kit  (Read 287 times)

Middy2000

  • Weekend Warrior
  • ***
  • Posts: 121
    • Main bike:
      FZS600 00-01
    • - Sinnis Apache 125
    • View Profile
Rear Brake Service Kit
« on: 12 February 2024, 01:21:50 pm »
The time has come where my rear brake is now longer functioning as it should.  To my knowledge it's never needed any remedial work so it's time to have it serviced.
Lacking the skills to do it myself I'm entrusting my local garage with it.  The said it would be cheaper to get a kit myself.


Question is....do I need the full kit with bleed nipple etc... or just a kit with the seals?  I'm going to have the pistons changed too.
Been advised to avoid Ebay ones as they aren't the best but I'll be guided by yourselves on that front?


And advice on kits would be most welcome.  And pads whilst I'm there.....

Gnasher

  • Foc-u Brake Doctor
  • GP Hero
  • ******
  • Posts: 5,588
    • Main bike:
      FZS600 98-99
    • - ZX10R, XJR1300, X10, GSF1000GT
    • View Profile
Re: Rear Brake Service Kit
« Reply #1 on: 12 February 2024, 03:39:12 pm »
The kit/s are available from Yamaha these are with and without pistons

1. A piston and seals (one side) is 51L-W0057-00 £71.71 last time I bought and fitted one, you'll need 2 kits if you want to replace both sides.

2. Seal kit this contains seals for both sides i.e. 2 main and 2 dust seals 51L-W0047-11 £38.33 last time I bought a kit.

You can get cheaper and almost same quality: - 

Yambits
Piston and seal kit £19.99 https://yambits.co.uk/fzs600-fazer-brake-caliper-piston-kit-rear-p-27154.html

Seal kit £5.99 you need 2 of them https://yambits.co.uk/fzs600-fazer-brake-caliper-piston-seal-kit-rear-p-18070.html

If you or the stealer are going to do the job properly, the caliper should be be split.  In which case I would recommend you also replace the caliper body seal Yamaha don't supply this.  They either intend the body isn't split (possible but harder and needs specialist tools to do the job, to guarantee not damaging the pistons) or reused, Which is possible but often the seal has become hardened and won't reseal properly if reused. 

In which case you need this from Yambits £2.99 https://yambits.co.uk/fzs600-fazer-brake-caliper-body-fluid-seal-rear-p-92407.html of the same part can be obtained from Suzuki's GS500 rear caliper.   

These kits from Yambits are good quality although not as good as OE, it's personal choice and pocket depth.

There is others like Wemto but I personally don't use them, I found their quality to be crap and not much better or the same as crap cheap fleebay stuff.

Other parts may also be required if they can't be cleaned or are damaged

Pad pins you may need 2

Yamaha
4FL-25924-00 £10.74 each

Yambits
https://yambits.co.uk/fzs600-fazer-brake-caliper-pad-pin-kit-rear-p-55618.html £6.99

Bleed screws you may need 2

Yamaha
15BW004800 £13.45 each this includes the dust cap

Yambits
https://yambits.co.uk/fzs600-fazer-brake-caliper-bleed-nipple-rear-p-5935.html £2.99

https://yambits.co.uk/fzs600-fazer-bleed-screw-nipple-cover-p-29313.html £1.25

It's also possible the Pad support shim is corroded/broken

This is only available from Yamaha 51L-25919-00 £12.64

All that said the actual condition of the caliper bodies, pistons etc will determine what you actually need.  Pistons can be cleaned and reused for example, the same may apply to bleed nipples, pad pins, dust cap and pad support.     
Later

Middy2000

  • Weekend Warrior
  • ***
  • Posts: 121
    • Main bike:
      FZS600 00-01
    • - Sinnis Apache 125
    • View Profile
Re: Rear Brake Service Kit
« Reply #2 on: 12 February 2024, 07:36:36 pm »
Thanks for that. My head is officially spinning.

Middy2000

  • Weekend Warrior
  • ***
  • Posts: 121
    • Main bike:
      FZS600 00-01
    • - Sinnis Apache 125
    • View Profile
Re: Rear Brake Service Kit
« Reply #3 on: 16 February 2024, 08:23:59 pm »
So an update.

Got told that a new motorcycle place had opened near me so i gave them a ring. They'd only been open a few days as a new business but had loads of experience between them.

Explained the issue and they knew the FZS and the caliper design fault.
Quoted £60 to supply and fit the service kit including pistons. 
Dropped her off and 24hrs later get a call to say it's done.
They found a fair bit of corrosion so gave it a real good clean up and replaced seals etc & one piston.

They said they felt a bit bad charging £75 owing to the extra time cleaning up the caliper but they did notice my centre stand was stiff so took it off and regreased it and also topped up my tyre pressures.  They'd obviously given the bike a good check over.

Brake feels spots on. They're getting an MOT bay next week so she'll be going back for that.

Caldwell Motorcycles Ltd
Louth
Lincolnshire