KTM 690E - All Things Suspension Related

Discussion in 'Thumpers' started by bigborefan, Jan 10, 2009.

  1. StepOnIt

    StepOnIt Assitoner

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    Huntsville ON.
    Is this an easy thing for someone who know what they are doing (not me) to do? Getting the rear re-valved soon and an extra inch would be great.
    Thanks
    #81
  2. Hooked

    Hooked n00b

    Joined:
    Mar 30, 2008
    Oddometer:
    8
    I was getting my rear shock ready to send in to have it rebuilt and to my horror the top preload lock ring was covering up an area of stripped threads on the shock body. I know it can't be repaired but I was wondering if this has happened to any of you fellow owners and what was the fix. That rear shock has been a pain in the rear from the start. Looking at the parts list between the 09 and 08 if possible maybe upgrade to the 09/10 upper shock body. I am not sure where KTM gets the extra travel for the newer models.
    HELP:(:
    <!-- / message -->
    #82
  3. Head2Wind

    Head2Wind MotorcycleMayhem

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    Does anyone have the stock WP shim stack blueprint for either the E or R forks and/or shock?

    I'm preping all the parts for a fork/shock refresh and re-valve, need to have a baseline reference to go from considering there is very little out on the webs with specifics.
    #83
  4. Head2Wind

    Head2Wind MotorcycleMayhem

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    Has anyone gone in and measured the stock shim stack on the 690 E/R and recorded it and then the $1M question, will you/they share this information?

    I am not asking for someone's secrets, just OEM settings. That way I can plan accordingly what I will be purchasing from the suspension shop to build my shim stacks.

    Anyone?
    #84
  5. badgerprince

    badgerprince n00b

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    Mine had the stripped thread issue. After cursing and hammering the stock preload rings off of the shock body I cleaned the threads with a three corner file and bought a new one piece stainless steel preload ring from Rally Raid in the UK. I lubed it and ran it up and down the shock without any issues. Every once in a while I shoot some teflon lube along the ring to prevent future galling.

    B
    #85
  6. Jimbobshere

    Jimbobshere n00b

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    Colorado
    FYI - I have had some experience with Jeff Slavens work on revalving suspension www.slavensracing.com as he did my 450 EXC a few years back. He specializes in KTM's and has some strong opinions on the 690 suspension. Apparently has done work with them. He seems very willing to help and has springs and parts in stock. Hope he can help.:wink:
    #86
  7. grapao

    grapao n00b

    Joined:
    May 11, 2011
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    2
    Hi, I need frequently to change preload on my rear shock, for driving with passenger. Not longs distance, but some fun moments with my whife or daughter in beautiful places here around (I live in the mountains in Italy)
    Until now I haven't find any easy preload regulator (like the EXC one for or an hydraulic one) for this bike. WP has one in catalog, but it is for mono coded 4618, and they tell me that 2012 R model has a different one rear shock (also if in the owner manual 2012 it is specified as 4618 !?!).
    Can someone help me to discover what is exactly the wp rear shock mono code for 2012 R? Or where I can find it written on the mono body? Some of you already have installed a more useful preload regulator? If yes, what?
    Many Thanks.
    Ciao
    Paolo
    #87
  8. BRYANDENNY71

    BRYANDENNY71 Been here awhile

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    There is a lot of scattered information. Lets get this down real simple.
    This is outside of any spring rate or valving changes needed for any specific rider.

    To get the extra travel out of the 690e suspension:

    This is what I gathered as different from the Microfiche.

    Even though the part numbers for the fork tube & fork leg are different, from what I've gathered, they do not need to be changed. The E model & R model both have 3 different spring options, 1 of which they have in common. So for simplicity, let's assume that a spring change is not necessary, but you may need to add a spacer to increase the preload on the stock 690e spring if desired. However, I am not aware of anything else that may NOT need to be swapped such as the Rebound Piston or the Screw Sleeve/Pipe & Adapter combo. I'm also not sure how the valving will be effected if you use your stock 690e valve shims on the 690R rebound piston. It looks like the Screw Sleeve threads into the top of the "Pipe", so if the Pipe/Adapter combo is longer than the stock single piece one, then all of the items need to be changed because the thread is different on the Screw Sleeve.

    Front: Increase travel from 250mm to 275mm Listed below are the R model part #'s
    46800562 Adjustment Tube L=495 $12.99
    48600561 Piston Rod D=12 L=529 ALU $88.99
    48600762S Screw Sleeve M27x.08 L=100 KPL $23.99
    48600455 Piston Ring 5X1X68 $13.99
    48600575 Piston Rebound SX 2007 $34.99
    48600764 Adapter Sleeve D23D28 $13.99
    48600763 Pipe D23L350 09 $52.99


    Total: $241.93 (These are MSRP prices, www.cheapcycleparts.com is about 20% cheaper)

    My main question is if the items in red need to be changed at all. Can the stock Rebound Piston & Ring be used, & can the Screw Sleeve/Pipe/Adapter Sleeve combo be kept stock or is there an assembly length difference.


    Rear: Increase travel from 250mm to 275mm
    This is a mystery to me because the shocks are completely different.
    So you either use a longer shaft like TrailTech uses from a jap bike (but he wont share with us the part #) or you find a spacer in the shock that can be replaced with a slightly thinner one to increase the travel. Don't go too thin, or remove it, as you may end up with too much travel & might run into issues with your swingarm hitting you master cylinder.


    If you PM me or post on here any useful information, I will edit this post as it is needed as this is just information I've gathered so far, I haven't had these apart in my hands yet.
    #88
  9. Evil Invader

    Evil Invader Been here awhile

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    Good one!
    :lurk
    #89
  10. Pole

    Pole Adventurer

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    Oct 15, 2007
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    Could someone check what's the total amount of rebound clicks in the front forks?
    I have messed up the 22mm spanner nut on the damper rod / spring guide.
    Now, with 17,5mm of thread exposed and adjuster tube 6mm exposed, it gives me 38 clicks in total.

    As far as I remember, there should be less than 30 clicks total?
    #90
  11. Dotbond

    Dotbond Africa, Africa

    Joined:
    Jun 18, 2006
    Oddometer:
    787
    Location:
    Dunedin. New Zealand
    I have a 2012 690 Enduro (250mm travel)and have had the front forks partly re-valved. I weight 78kg in my birthday suit. Haven't ridden it yet, will do tomorrow and let you know my findings. I had told the suspension guy that it was too harsh on the trail, ruts, bumps, stutters/corrugations. Worked well if you were leaping off jumps but then there was still a bit of harshness about it. So, just the 24mm diameter shims changed this time, suspension guys recommendation, different thickness and qty.
    Shim setup:
    Was-----------Now
    24 - 0.15 -----24 - 0.10 x 2
    16 - 0.10 -----16 - 0.10
    24 - 0.15 x 2--24 - 0.10 x 2
    20 - 0.15 -----20 - 0.15
    18 - 0.15 -----18 -0.15
    16 - 0.15 -----16 -0.15
    14 - 0.15 -----14 -0.15
    9.5 - 0.30-----9.5 - 0.30

    Update:
    Took the bike for a ride and now the front forks go up and down when riding over corrugations/stutters. Woohoo!! Finally suspension that works. I can start to hold a line going around gravel roads that are corrugated. It's not perfect or "superplush" but it's a start in the right direction.
    So will stay with this setup for a month or so till I decide what else needs doing.
    I do need to ask the suspension guy i used why he replaced the first 24mm 0.15 shim with 2 x 24mm 0.10 shims.
    All I can say is if you do not have a 690 suspension guru near by, just get your KTM bike shop to start replacing the 0.15 shims with 0.10 shims.
    #91
  12. Head2Wind

    Head2Wind MotorcycleMayhem

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    how much float are you running in the mid valve?

    did you do anything to the rebound stack?
    #92
  13. Dotbond

    Dotbond Africa, Africa

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    No idea on the float sorry. What ever is standard i assume. But I will ask him tomorrow.

    Didn't touch the rebound stack. Do you have any thoughts on the rebound?

    I will be seeing the suspension guy in about a months time so he can check the bike out and advise me what to do even further.
    #93
  14. Head2Wind

    Head2Wind MotorcycleMayhem

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    Well i guess the only thing to do is tear into mine and start from scratch and baseline measure everything, plug it into restacker app and go from there

    Sent from ADVmachines.com via Tapatalk
    #94
  15. funsummer

    funsummer Been here awhile

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    Feb 18, 2011
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    Perth. Australia
    Any further news on this shim adjustment and what oil weight/ height you blokes running?
    #95
  16. coarsegoldkid

    coarsegoldkid Been here awhile

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    I have a '13 690 End R. Where do you source the 0.15 shims?
    #96
  17. daveburton

    daveburton Been here awhile

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    Jun 6, 2012
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    185
    Hi,

    I have a 690 with 40mm Koubalink and about 30mm through the clamps. I need to drop it a further 25mm. How would I do that with the suspension. Spacers,shims, progressive springs.

    I'd appreciate any advice chaps,

    cheers dave
    #97
  18. The Letter J

    The Letter J lost in the 690 mega

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    Santa Maria, CA
    bumping this one.
    #98
  19. coarsegoldkid

    coarsegoldkid Been here awhile

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    I've done the same as you. I wouldn't do any more than that. You will lose too much ground clearance. The risk of banging the rear link or the rear brake master is much greater. I'm thinking of changing out the 1 5/8 Kouba for a 1 incher. It will be slightly taller but when I load up the saddlebags and such I'll likely be back to where it is now.

    However I do believe that if you call around to suspension specalists you'll find someone that can shorten the rear shock shaft and find a shorter spring. Maybe even the front can be done the same too.
    #99
  20. coarsegoldkid

    coarsegoldkid Been here awhile

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    What I would also like is get more compliance in the high speed compression of the front forks. Where does one source the shims? Part numbers?