Jump to content


Photo
- - - - -

Abs - Anyone Bled The System?


  • Please log in to reply
22 replies to this topic

#1 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 08 May 2024 - 09:41 am

I've noticed the ABS is barely doing anything on my niner rear brake.

 

Have now twice fishtailed along in wet conditions with the ABS just ignoring the fact the rear has locked up.

 

I was 'testing' it today and it barely fluttered slightly once, but generally just didn't release.

 

I'm wondering if there's some air of blockage in the pump and it needs purging/priming.

 

The rear brake is very effective otherwise, grabs but easy to lock in the wet (new disc and pads).

 

The ABS light on the dash comes on with ignition and then goes out shortly after - my other bikes ABS lights only go out once the bike starts moving to confirm they've detected the sensors, but I'm not sure the old TDM system is that sophisticated.

 

Anyone had any dealings with the niner ABS unit at all?



#2 Studley Ramrod

Studley Ramrod

    Monkey Boys Monkey

  • Root Admin(A)
  • PipPipPipPipPipPipPipPip
  • 19,268 posts
  • Location:HELLO ! I'm in the Library...Notts
  • TDM model: 1993

Posted 08 May 2024 - 03:03 pm

Just moved yer topic Nog 🙂 also informed Mr Henty

Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !!  Now owned by chrisbee !   Studley's mk2a Bloggerydoodaah !  Photos of my first MK1  Photos of my MK2a  TPLQHCSRSFC No. 1 Fan


#3 Muppdog

Muppdog

    Carpe groupie

  • Member
  • PipPip
  • 294 posts
  • Location:Bodmin, Cornwall
  • TDM model: 2006

Posted 08 May 2024 - 10:05 pm

Hi,
Got the same issue.(Lorry-) Mechanic at work thinks its the sensor given up the ghost. Probably right. Tried to remove it, the garage tried but not shifting. Soaking, levering, hammering, That was years ago. Just riding without rear ABS since. No issue. Better for off-roading, too!

#4 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 09 May 2024 - 08:00 am

I would have thought it would throw an error up if the sensor had given up though - apparently the system runs a check for 2 seconds on ignition, and the light should go off, which mine does ok, but then the light comes on if the wheel sensors throw a wobbly.

 

I'm checking the ABS supplement manual to check on possible issues, but it could well be I also have to accept no ABS on the rear - not the end of the world, rode non-ABS bike for many years without issue.



#5 Snowbird

Snowbird

    Just won't go.

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 1,400 posts
  • Location:Often on another planet, but mostly south Cambs. (St.Neots)
  • TDM model: 2000

Posted 09 May 2024 - 09:39 am

As long as the light goes off at mot time.

Current toys: '99 XT600E, 2000 4TX, '82 Princess 30DS (where the username comes from), No longer a '03 Fazer thou.

Save the planet, it's the only one with beer!


#6 Catteeclan

Catteeclan

    full o shoite

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 2,487 posts
  • Location:Gorleston Norfolk
  • TDM model: 2002

Posted 09 May 2024 - 03:32 pm

Think the TDM does a circuit check before the light goes out and that's it. You'd have though Yam would throw a code if the rear isn't going as fast as the front continually.
Mandis CBF has to get up to around 5mph then the light goes off.


2002 TDM900 Yellow


#7 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 09 May 2024 - 04:03 pm

I've been reading through the manual and it appears there's no special bleeding procedure, just the usual we'd always do, but the hydraulic unit can be tested once complete.

 

It needs the Test coupler adaptor (part 90890-03149) which Fowlers has for only £8, but it really is just shorting two wires which a guy covers here:

Test and Maintain your ABS System | Yamaha FJR Motorcycle Forum (fjrforum.com)

 

b2c3a88d8e559cd33a57894e1caac013.jpg

 

The test procedures he covers, and it can be done with the bike on the centre stand with the engine off, so i'll give this a go at the weekend.  Hopefully will at least show if any problems, and maybe even help purge the unit a bit.



#8 Studley Ramrod

Studley Ramrod

    Monkey Boys Monkey

  • Root Admin(A)
  • PipPipPipPipPipPipPipPip
  • 19,268 posts
  • Location:HELLO ! I'm in the Library...Notts
  • TDM model: 1993

Posted 10 May 2024 - 04:38 am

Yeah, shorting 2 wires, rings a bell. 👍

Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !!  Now owned by chrisbee !   Studley's mk2a Bloggerydoodaah !  Photos of my first MK1  Photos of my MK2a  TPLQHCSRSFC No. 1 Fan


#9 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 10 May 2024 - 08:47 am

So I had a go at it last night - found the connector behind the ABS ECU in the right fairing panel, shorted out the top two wires and ran the tests.

 

Test 1 - make sure kill switch is off so the bike can't start, battery needs to be well charged so best to put on a charger/tender.

Turn on ignition and hold down start button for 5 seconds or more.  Let go and then brake with both front and rear at the same time and hold.

ABS motor fires up and pulses the front and then rear in turn for a few cycles.  Lever and pedal should 'pulse' as the systems pumps.

 

Test 2 - Kill switch off etc as above, but this time hold the brakes on with ignition off.  Then keeping the brakes fully on, turn the ignition and keep holding.  The pump will again go through it's cycles.

 

The tests worked fine and the motor ran, but the 'pulsing' wasn't what I was expecting and it felt more like just a vibration and quite weak, so I'm thinking years of never operating has left the ABS pump full of older and older brake fluid gunging everything up, and it's not really releasing pressure as it should.

 

The problem is, when actuated, it doesn't move the fluid much, as the bypass that releases the pressure on the brakes is just a bypass section and as it's all a sealed system, the fluid can't really travel anywhere, just releases the pressure on the system.

 

So my thinking is, if I run the tests and then bleed the caliper as the pump is pulsing, it should (by my logic) push fresh fluid into the pump as it opens/closes the solenoid.  Might allow the old rubbish to clear and then the new clear out any blockage/debris and get it working again.

 

Who knows, will try and see.  At the worst the system is simply a non-ABS bike, which I've ridden for decades anyway, so I'm not too concerned about that, just be nice to get the system working if I can.



#10 Studley Ramrod

Studley Ramrod

    Monkey Boys Monkey

  • Root Admin(A)
  • PipPipPipPipPipPipPipPip
  • 19,268 posts
  • Location:HELLO ! I'm in the Library...Notts
  • TDM model: 1993

Posted 11 May 2024 - 09:29 am

Good to know Nog 👍 thanks for sharing.

Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !!  Now owned by chrisbee !   Studley's mk2a Bloggerydoodaah !  Photos of my first MK1  Photos of my MK2a  TPLQHCSRSFC No. 1 Fan


#11 dablik

dablik

    Master Intermediate Fettlin' Award 2018

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 10,817 posts
  • Location:Bootleshire
  • TDM model: 1992

Posted 11 May 2024 - 10:43 am

Yes thanks for sharing, be handy for my bike also...


Bigred mk1 R1 Calipers- Braided lines- Givi wing rack-Crash bungs- Hi vis bullets-PR2's- and a hoot to ride.

Quad 900 Silver Laser duo tech pipes-Scott oiler-Engine crash bars- Radiator mounted see me ring LED's-Datatool system 3 alarm -Centre stand- Extender fender-Renthal bars-Handle bar risers-Mirror extenders-BMW GS Handgaurds-Acumen uprated horn & Nautilus-Stainless steel Radiator guard-Givi wing rack-OEM screen-Yammy touring screen-MRA Vario-MRA Double bubble cut down for fast as fk riding-Tiger screen-Tank protector-Stomp grip panels-Optimate lead   Gone to Heaven  :sorry: 

 

1991 MK1 in need of some TLC watch this space   :) Sorted and on the Road Mick  :P  :P it's the bike that Jack built  ;) Gone to Heaven  :wub: 

 


#12 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 13 May 2024 - 08:08 am

Just an update - I tried bleeding the system as the solenoid was engaging - no difference, but hopefully some fluid has been moved through the system.

 

Maybe it'll work on the road, but I'm not sure. Apparently the unit is non-serviceable from what I can tell, so I'll just ride knowing my ABS is pretty well non-existent.



#13 Studley Ramrod

Studley Ramrod

    Monkey Boys Monkey

  • Root Admin(A)
  • PipPipPipPipPipPipPipPip
  • 19,268 posts
  • Location:HELLO ! I'm in the Library...Notts
  • TDM model: 1993

Posted 14 May 2024 - 02:09 pm

👍

Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !!  Now owned by chrisbee !   Studley's mk2a Bloggerydoodaah !  Photos of my first MK1  Photos of my MK2a  TPLQHCSRSFC No. 1 Fan


#14 Robbo622

Robbo622

    discovering Carpe

  • Member
  • 11 posts
  • Location:Peterborough
  • TDM model: 2005

Posted 25 May 2024 - 07:50 pm

Try this link, translated from german it's a bit clunky.

 

https://wiki-tdm--fo...=en&_x_tr_hl=nl



#15 dablik

dablik

    Master Intermediate Fettlin' Award 2018

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 10,817 posts
  • Location:Bootleshire
  • TDM model: 1992

Posted 26 May 2024 - 07:26 am

Good post Robbo  :good:


Bigred mk1 R1 Calipers- Braided lines- Givi wing rack-Crash bungs- Hi vis bullets-PR2's- and a hoot to ride.

Quad 900 Silver Laser duo tech pipes-Scott oiler-Engine crash bars- Radiator mounted see me ring LED's-Datatool system 3 alarm -Centre stand- Extender fender-Renthal bars-Handle bar risers-Mirror extenders-BMW GS Handgaurds-Acumen uprated horn & Nautilus-Stainless steel Radiator guard-Givi wing rack-OEM screen-Yammy touring screen-MRA Vario-MRA Double bubble cut down for fast as fk riding-Tiger screen-Tank protector-Stomp grip panels-Optimate lead   Gone to Heaven  :sorry: 

 

1991 MK1 in need of some TLC watch this space   :) Sorted and on the Road Mick  :P  :P it's the bike that Jack built  ;) Gone to Heaven  :wub: 

 


#16 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 28 May 2024 - 09:52 am

Try this link, translated from german it's a bit clunky.

 

https://wiki-tdm--fo...=en&_x_tr_hl=nl

 

Good to know what I tried is basically the method to do it  :good:

 

I think my unit is past it though now.  Was locking the back wheel up on purpose the other day in the wet and it's barely doing anything.

 

I might check the sensors next though, as maybe it's simply not getting triggered as it should.



#17 Catteeclan

Catteeclan

    full o shoite

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 2,487 posts
  • Location:Gorleston Norfolk
  • TDM model: 2002

Posted 28 May 2024 - 04:04 pm

Haven't seen it on a TDM but the alloy housing corrodes and squashes the sensor although you'd have though it'd give you a fault code if the sensor goes open circuit, got to worth a go if you can find a cheapy.
Maybe a resistance check to compere with the front sensor and workshop manual.


2002 TDM900 Yellow


#18 chrisr

chrisr

    has been here 4ever

  • Supporting Member(thanks)
  • PipPipPipPipPipPipPipPip
  • 1,762 posts
  • Location:Surbiton, Surrey
  • TDM model: 2010

Posted 30 May 2024 - 07:05 am

As it seems to be problematic has anyone successfully removed abs?


The Blue One : 2004 model owned 2010-2018 much loved, much missed and now living with a man in Scotland Spain.
The Black One : 2010 Model Registered 2013 owned 2018 - present .Beowulf Cans. Renthal 755s Grip Puppies,15w fork oil,DL650 handguards ,givi engine bars ,led spotlights,gipro gear indicator, shortened dogbones, LeeHenty CSM kit and stainless bits, Topsellerie seat,MRA Xcreen,.PC III (dynoed). K&N airfilter,Fenda extenda. Lots of stainless/titanium.


#19 Studley Ramrod

Studley Ramrod

    Monkey Boys Monkey

  • Root Admin(A)
  • PipPipPipPipPipPipPipPip
  • 19,268 posts
  • Location:HELLO ! I'm in the Library...Notts
  • TDM model: 1993

Posted 30 May 2024 - 07:56 am

Wonder if it could be disabled ? Fuse removal maybe ?

Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !!  Now owned by chrisbee !   Studley's mk2a Bloggerydoodaah !  Photos of my first MK1  Photos of my MK2a  TPLQHCSRSFC No. 1 Fan


#20 Nog

Nog

    Knight of Postsalot

  • Member
  • PipPipPipPipPip
  • 527 posts
  • Location:Sarf East Innit
  • TDM model: 2007

Posted 30 May 2024 - 02:40 pm

Trouble is you'd probably need to also code it out of the ECU (or replace with a non-ABS ECU) otherwise it'll show a fault code and possible light up the ABS warning - MOT fail?

 

Mine just thinks it's working, but is basically non-ABS, so just the same as if I removed it but without the hassle, if you see what I mean.

 

Maybe when I put the bike away for the worst of the winter months i'll see if I can strip the unit a bit and (maybe) see if there is any part I can get working.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users