The 650 Dakar Thread

Discussion in 'Thumpers' started by underwaterguru, Mar 10, 2009.

  1. c-m

    c-m Been here awhile

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    In the X-challenge thread I think that someone said Ironman rear sprockets are available for the F650. Very minimalistic and seriously strong.
  2. Gedrog

    Gedrog Been here awhile

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    Hi all dakarists

    Another question for all those who have upgraded to the KTM forks what year forks and shocks would you recommend for the Dakar suspension upgrade. How did you get the front wheel to fit the KTM forks as the KTM axle I believe is slightly bigger. What conversion has to be done here to get the two to adapt I have seen lots of photo's but not much on how the challenge was overcome does anyone sell a ready to go Axle adapter.:ear

    I bought a et of custom Woody's wheels a year ago
    Rad Eagle Billet Hub w/ Bearings, Spacer & Seals for F800, KTM, KLR
    I asked Woody if he has a different set of spacers that will allow the custom wheel to be fitted with the KTM forks and axle will await his answer?
  3. WayneC

    WayneC Long timer

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    You can use the KTM front wheel and 300mm disks 5 mm thick are available to fit the KTM wheel so it simplifies conversion
  4. Cal

    Cal Long timer

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  5. dwayne

    dwayne Silly Adventurer

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    The old KTM/WP stuff uses a 17mm axle which is the same as the Dakars (I think that axle was in use until,the earlly 2000s). Then KTM switched to the 20mm for a few years, I recommend staying away from this axle, not because it eas bad, but because it's the hardest year to find stuff for. In around 2004 The 30mm became the standard. I used early 50mm extremes from an adventure. I used KTM brakes, BMW.wheel/rotor, and it all pretty much bolted up except some fab work to retain the steering lock. If I were to do it again I would go the Yamaha yz/wr route now that the brake side has more robust components available.
  6. Damian_74

    Damian_74 Been here awhile

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    Chain Gang sprockets last and last - but no the cheapest!

    http://www.chaingangchainsandsprockets.com.au/

  7. WayneC

    WayneC Long timer

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    Not that we are biased here down under

    But seriously, anything but BMW on the rear and I have seen kits with chain/sprockets and the sprockets have looked like the cheap junk BMW sells. I have had good experience with JT and I will buy chain and sprockets separately to get the best of each if I need to
  8. Gedrog

    Gedrog Been here awhile

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    Thanks Dwayne

    After speaking to Zach at Woody's wheels last night it seems I will need a new hub or a complete new front wheel in that case I might just go for a complete fork axle and front wheel of the 950 Adventure. Just a question regarding the "50mm extremes from an adventure" is this a bolt on part do you have more info on your conversion. I am re-doing everything.
    http://www.venhill.co.uk/Controls_a...TGRIPS/600A_VENHILL_DUAL_RATE_TWIST_GRIP.html
    http://www.emigracing.com/

    Also need to make a decision between
    Option 1 50 Litre conversion probably overspend but hen who cares
    http://shop.touratech.co.uk/tank-fairing-kit-bmw-f-650-rallye.html
    or

    Option 2 38 litre conversion better luggage options

    http://shop.touratech.co.uk/tank-conversion-for-bmw-f650gs-f650gs-dakar-2003.html

    Another type of oil cooler ned to find out if it will work with the DAK

    http://www.bashplates.de/BMW-G-650-Xchallenge-Xcountry/Oil-cooler-for-BMW-G650-single::83.html

    New controls

    http://www.dmvmoto.com/servlet/the-727/DMV-Adjustable-Brake-&/Detail

    or
    http://www.xlmoto.no/bremsehendel-lightech-unbreakable


    and finally the list goes on


    Come to think of it by the time it will be finished I will be too scared to take it off-road :roflBut that is why we do these things I may just put off the suspension conversion until I have done all the right research.

    Just sold the ZX1200-A1 last night or ZX12R Ninja. I was almost in tears owned it from new, it is an end to an era of hyper speed traveling for now but now the garage kitty has some cash got too fix the other Dakar's odometer new circuit board by the looks of things got about 11K miles on it and will sell that as well. Anyway lots to go and think about. New rear suspension bearings and stuff arriving today. Wish I had a hydraulic press it makes life so much easier.

    :freaky
  9. Damian_74

    Damian_74 Been here awhile

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    Nothing wrong with supporting the local product,especially when it works!

    And yes - guilty of bias here!


  10. GSBS

    GSBS FunHog

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    JT Sprockets have worked well for me every time; not too pricey either. X-ring chains have given me 25-28K miles of service each. Haven't used O-ring chain on the Dakar, but doubt they'd last as long.
  11. dwayne

    dwayne Silly Adventurer

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    The components came from a 99 ish 640/620 Adventure (single brake, 17mm axle, 50mm WP Extreme Conventional forks), the adventure uses a wider spacing on the mount lugs than the SC/EXC etc variants of the 50mm forks. I used the KTM caliper with the BMW master (not ideal because one of the pots on the KTM caliper is a little smaller, so more lever effort is required, but not horrible either). A longer brake line is required because of the extra travel. My bike was a non ABS, so there were no issues there. The bearings seemed compatible enough that I left them alone. I have since run the WaBDR, UtBDR, and CoBDR with no issues. My last deals is to remount the stock caliper using a custom machined adapter and slightly stiffer springs.

    My focus was a setup suitable for heavy adventure touring (all dirt/gravel/mining road). The two biggest issues I wanted to control was fork flex, and the forks packing up on rocky descents while fully loaded & I feel I accomplished this goal. I stayed away from inverted forks (I seem to get alot of leaking seals, and they are a pain to replace), but did not want a damper rod stye fork. The WP 50mm have a great reputation for being a plush, controlled fork and being pretty rigid...plus they go for a song.

    One thing if you do the conversion is to stay away from the WP 43 mm inverted...parts are getting a little hard to find, and you may as well do it right, so a 48mm front end would be the ticket. Go for an 640/690/950/990 front end and you get the heavier brakes out of the gate.

    Again I would look at the Yamaha stuff before you make a choice.
  12. mettalique

    mettalique Been here awhile

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    For what it's worth I've just bought a DID 520 vx2 from Bargain Bike Gear in Oz for $89.95 plus postage
  13. Kainic

    Kainic Almost there

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  14. Linusp3

    Linusp3 Been here awhile

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    Any noticeable improvements?
  15. Gravel Seeker

    Gravel Seeker Thomas

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  16. Damian_74

    Damian_74 Been here awhile

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    [​IMG]<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" /><o:p></o:p>
    <o:p> </o:p>
    I purchased on of Scheffelmeier Metal’s oil coolers too, went to fit it up the other month and noticed that there is no provision in the end cover for the oil bypass valve.<o:p></o:p>
    Looking at the BMW oil schematic, the oil filter is fitted with a relief valve as a safety device if the oil filter blocks. The BMW oil covers inside face is cast in such a manner that the oil can flow if the filter blocks, and the relief valve lifts.<o:p></o:p>
    Scheffelmeier’s cooler has a flat face with no provision for oil flow.<o:p></o:p>
    My fear is that of the filter becomes blocked; there will be no flow and causing engine damage.<o:p></o:p>
    I contacted Stephan (Scheffelmeier Metal) and his reply was<o:p></o:p>
    <o:p> </o:p>
    “Sorry I didn´t know that if I designed the cooler. <o:p></o:p>
    I can mill cut a groove for the oil flow in it but you must sent it back to me for that. <o:p></o:p>
    Regards Stephan.”<o:p></o:p>
    <o:p> </o:p>
    Little disappointed in the reply, yes he has offered to mill a groove in the cover (note: the end cover is only 4mm thick, not sure I would want a groove milled in it!) but the postage was at my cost – not cheap considering I’m in Australia.<o:p></o:p>
    <o:p> </o:p>
    I am working on another solution, a grooved spacer with galleries, pressed into the end.<o:p></o:p>
    Another possible improvement to the cooler is replacing the original filter K&N–151 with a K&N-152 (The 152 is longer - larger surface area), but the same in all other dimensions. The Scheffelmeier cooler uses a long spacer between the filter and housing, this will obviously require shortening for the longer filter and relief valve spacer. <o:p></o:p>
    <o:p> </o:p>
    http://www.knfilters.com/search/product.aspx?prod=KN-151<o:p></o:p>
    http://www.knfilters.com/search/product.aspx?prod=KN-152<o:p></o:p>
    <o:p> </o:p>
    <o:p> </o:p>
    On the whole, I feel that the concept of the cooler is good, but a few major points where overlooked in its design. Another grip is that it appears during its manufacture there was a mistake with the mill that has subsequently been welded. It is noticeable as the anodizing hasn’t taken to the weld.<o:p></o:p>
    <o:p> </o:p>
    At the same time I purchased a front sprocket/ case saver. This they got right!<o:p></o:p>
    Perfect fit, much better than any of the rubbish that TT puts out.<o:p></o:p>
    <o:p> </o:p>
    http://www.bashplates.de/BMW-G-650-Xchallenge-Xcountry/Front-sprocket-cover-case-saver-BMW-G-650-X::43.html<o:p></o:p>

  17. 1911fan

    1911fan Master of the Obvious

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    Black text on a grey background. Were you trying to make it hard to read?


    1911fan
  18. Damian_74

    Damian_74 Been here awhile

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    Sorry about that - 300 miles out to sea - internet via satellite connection (very very very slow internet)

    Tried to correct the text colour but as it took me about two hours to upload the text and photos, I lost interest!

  19. 1911fan

    1911fan Master of the Obvious

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    Meant to also say that I've been looking at that filter cooler, thanks for the writeup, also.


    1911fan
  20. TobyG

    TobyG be happy :)

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    I got the same oil cooler and if you expect the same performance from it as you'd expect from a normal oil cooler,
    this one is not for you.

    It doesn't do too bad, though,
    considering there's no further mods required to fit it.

    I mainly bought it because I had an easy with the oil getting damn hot for a couple reasons (resolved by now),
    and it helped get the oil up to 8°C cooler.

    During high speeds (70+ kph) that is,
    as for slow riding this oil cooler won't do much, other than increasing the oil capacity.


    Short version:
    It works better than I thought, yet it doesn't do much for low speed riding
    nor will it deliver the same performance like an traditional oil cooler.






    On another note:
    Do we have any members from the Netherlands here? :ear