2012 ktm 500 exc?

Discussion in 'Thumpers' started by Visigothic, Apr 27, 2011.

  1. Yardstick

    Yardstick Hydrophobic

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    There is a youtube video of an introduction for the 2012 models (it's almost an hour long if you're looking for it). They mention in the video at one point that the clutch is backward compatible with the XC-F's to 2007. It would be interesting to see if anything else might be backward compatible with the XC-W/EXC's -especially the cam chain tensioner! :evil
  2. Super Enduro R

    Super Enduro R Been here awhile

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  3. spagthorpe

    spagthorpe Long timer

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    Beautiful!
  4. RedlegDaddy

    RedlegDaddy Been here awhile

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  5. D K

    D K Been here awhile

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    It's Mapletoe:ricky
  6. Visigothic

    Visigothic Been here awhile

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    Intel says just 36 more days until "IT" hits the shore; the street legal 2012 500exc.:evil My only hope is that the US version will be carb'd.

    ACERBIS!!! hurry up with that larger tank will ya! HTR ; we need an oil cooler for this new motor if your not too busy please, also add a CUSH sprocket and I'm GTG. :eek1
  7. Swede

    Swede n00b

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    [​IMG]

    http://www.gear4direct.com/?i=311138

    No real need for a cush sprocket when you have cush CLUTCH :D
  8. Visigothic

    Visigothic Been here awhile

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    Looks fantastic!!!!!!!!!!!!!!! 3 gal.

    I hope they make a 5 or 6 gal. for the long hauls.

    Thanks Swede

    :happay:happay:happay:happay:happay:happay
    "Aih' hef qiman ga-tairan reik nauhap'-p'an af-slahan ceasar ...... alls fram-himma fra-qistnan dat

    jainar bi unsar mnags fotus fram meins kun ...... ahhhhhh."

    "I have come to dethrone an empire and it's ceasar......which now lay in ruin at the feet of my fellow
    tribesmen......ahhhhhh." VG
  9. Zuber

    Zuber Zoob

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    Back to the valve adjustment - the head looks exactly like the 2008-2011 450/530 EXC/XC. This is very easy to adjust and very robust.

    You pull off one 6mm screw and a forked keeper, then the cam slides out of the bearings and drops down. This allows both rocker arms to pivot up and you can pluck the shims off the top of the keepers. This uses the 7.98 dia shims like all the 2007-up four strokes. Total time to adjust all four is about 45 min, including unloading it from and truck and pushing it in the shop.

    The USA bike will be a 500 EXC with Fuel Injection, just like the current 350 SX/XC, but no doubt a few more catch bottles. There will also be a street legal 350 exc, but no street legal 450 exc.

    The Keihin FI on the current 350 XC and the 250 XC is perfect. This FI can be modified to run without a battery in kick start only mode, you only add a capacator. There is a $450 'user setting tool' available from KTM that will allow you to modify the FI and Ign timing, but you won't need it. The only issues so far are dirt getting to the injector, so KTM added a fourth (!) small filter.

    These should be available in the USA about late-Sept to early-Oct.

    I've got one on order, it will be replacing an XR650R and a 300EXC, so it will do full trail and dual-sport duties.

    Just needs a bigger tank (4 gal) and a cush seat.
  10. crash n bern

    crash n bern Long timer

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    Every year those seats get smaller, and every year my ass gets wider.
  11. bobbed06

    bobbed06 Cavalera Conspirator

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  12. Thumpermeister

    Thumpermeister roost maker

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    Nice.
    That just might be on my short list for "next time""...after they sort out the EFI in 2013 of course! :lol3
  13. Zuber

    Zuber Zoob

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    They sorted out the EFI on the Husburgs (that KTM owns) years ago. So, 2012 will be the fourth? year with the same EFI.

    I can't wait for EFI on a street legal trail bike. Been holding off for a couple of years. No more guessing on the choke settings, no more dirty float needles puking gas, no more re-jetting for high desert vs sea level, clean low end torque, much better mileage.

    Anyone look up the price of a Keihin FCR 41 MX carb from KTM? Try $850!!

    We added up all the parts for the Keihin FI that comes on the 350XC, that's the pump, injector, fuel rail, sensors, throttle body, everything. Total = $650! These are retail prices in the USA.
  14. bobbed06

    bobbed06 Cavalera Conspirator

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    Good to know...Why havent you tried the Husky TE FI models??
  15. RichardU

    RichardU Let's Ride

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    +1

    Looks like the head on the 500 is SOHC, and the head on the 350 is DOHC. Any thoughts on that? Differences in reliability, performance?
  16. Visigothic

    Visigothic Been here awhile

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    DOHC vs SOHC The DOHC takes longer to work on. Its like having a Vtwin SOHC, sorta.

    DOHC allows the cam to ride above the cam via a bucket shim design without the use of rocker arms for higher RPMs. Less valve lash. Other than that I guess theres no real difference other than to give an engine designer something to do. :D

    I like the 500, SOHC has roller tapets the DOHC does not, DOHC two cams with one or two chains no rollers or SOHC one cam with rollers and one chain. Take your pick . For most people it makes no difference.

    SOHC is more DIY friendly: valve adj.

    Chime in here somebody.
  17. gmtcm

    gmtcm KTM RIDER

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    So when will the 500 XCF-W's really arrive in the USA dealer showrooms? Each shop I query says something different.
  18. Visigothic

    Visigothic Been here awhile

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    I thought the EXCs were to get here in Sept but the release could depend on back stock of 2011 530s at dealers.

    "Aih' hef qiman ga-tairan reik nauhap'-p'an af-slahan ceasar ...... alls fram-himma fra-qistnan dat jainar bi unsar mnags fotus fram meins kun ...... ahhhhhh."

    "I have come to dethrone an empire and it's ceasar......which now lay in ruin at the feet of my fellow tribesmen......ahhhhhh." VG
  19. Yardstick

    Yardstick Hydrophobic

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    I don't know how they do the single lung, twin cam KTM motors, but with the 950/990 the twin cams on each cylinder have a combination gear/chain drive. The chain drives a single gear that drives both cams. After lining everything up at TDC for one cylinder, the cams come out quick and easy by just removing cap retainers. You don't have to deal with a chain at all. I think if the small motors had a similar setup, they would be easier to deal with than the single cam with shims design of the 530 and new 500. Not that either is especially difficult to deal with. :dunno
  20. rtadlock

    rtadlock Long timer

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    People complaining about EFI reminds me of when all my friends refused to ride 4-stroke moto X bikes when I was in college and the sport was going that way. I knew 4 stroke was the future, but all my friends thought my bike was fat, slow and hard to start (it was all of those :) ). I stuck with it, and slowly but surely they all moved to 4 strokes (lest they be left behind on the track). Anyway, people complain about EFI on the 990's, and I love it! You know what I did the other day? Rode from my house at just around 5k up to 13k feet. You know what happened to my friend on his carbbed 950? He got stuck coasting/pushing his flooded bike back down to where it would start. I guess he could have changed his jetting, you know, because carbs are so easy to work on. :rofl