2012 ktm 500 exc?

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

  1. Notaduke

    Notaduke Migration to offroad

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    I haven't yet got the various things needed to fine tune, or even identify the map...its bone stock right now and in Canada I would be surprised if they loaded the unrestricted Euro map, so that all seems consistent with people's comments.
    Will pick up a JD tuner after I get the gearing sorted. I've never done single track before, and had it out on the weekend for the first time, with the stock gearing. Was absolutely amazed how easy it was to work through some non-trivial (to me) stuff, but would definitely have been better off with lower gearing.
  2. RSinBC

    RSinBC Been here awhile

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    Hey notaduke, my screen fell out as well on the first ride, i also found it. It is not part of the spark arrester, but it is for reducing the noise of the bike. It leans the bike out even further once it falls out, so it will pop more. I have installed the JD tuner and it definitely helps with the performance of the bike, but has not stopped it altogether.

    I will be taking the bike to Holeshot to get the unrestricted euro map from the XC-W installed (I think the exc and xc-w unrestricted maps are the same??) I will also get the TPS settings checked.

    It seems a lot of guys are skipping the JD and just remapping, the JD might be good if you change the exhaust as well?? and need to add more fuel.

    I am waiting for some more bits to arrive so i can finish the bike and get it out to the dealer.

    Regards,

    Richard
  3. Notaduke

    Notaduke Migration to offroad

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    Richard, thanks, and good to hear from a local with the same bike. I have to learn more about options with tuning vs maps on the KTM. I'm familiar with Powercommanders and Trimming programs on my streetbikes, but it sounds like this JD tuner is something a bit different. I'm not likely to change the exhaust in the short term, but would like to have it run a bit richer in more-or-less stock form. Sounds like the unrestricted map is worth looking into.

    Regards,
    Jeff
  4. dentguy

    dentguy n00b

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    Can somebody please tell me if or what shop in Southern California will re-map my ecu? I've called a few shops and they said CARB will fine them if they get caught doing the mod. I called a shop in LasVegas and they said bring it down, no problem. Wtf CA? PM me so the CARB nazis don't find out. Thanks - D
  5. justlookin

    justlookin Been here awhile

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    I have a new XC-W and would like to find or buy a copy of the schematic. Asking here because the EXC should be very close with a few additional parts. Any ideas wher I can find this or possibly other fuel injected KTM's with similar schematic?
    By the way, I don't have any specific electrical issues, just want to be prepared for when I do. :D
  6. Bengt Phorks

    Bengt Phorks Been here awhile

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    If you still have the smog equipment on then you have to drain the charcoal canister. What happens is the canister fills up with gas from the vent tube when you tip the bike over. It backfires because the gas in the canister flows into the exhaust instead of just the fumes. The exhaust screen makes extra back pressure which reduces the flow.
    You can drain it by removing the plug from the tube that comes out underneath the bike.
    Way back in this thread there are instructions on how to remove the smog equipment for test purposes only:)
  7. cross-country

    cross-country .

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    Does it say that in the manual? That seams to me like it could only cause trouble. The pressure between the sprocket and the CS would push out any grease and it would attract dirt to the area around the seal, possibly causing it to fail.
  8. 2on2off

    2on2off Head'n somewhere new

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    I have both a 2012 and 2013 500EXC.

    I fixed the 2012 flame out problem by installing the Euro Map. Smog removed and an FMF slip on installed.

    My local KTM mechanic said he thought it was a bad idea to mess with the TPS. He is a chief mechanic for a sport bike racing team. My flame out was fixed once the Euro Map was installed.

    When I bought my 2013 500EXC, I was told KTM had fixed the flame out problem with the 2013 stock KTM MAP. Not true. I have de-smoged and removed the screen from the end of the stock slip on muffler. Back firing was fixed with the de-smog but I have some minor flame out issues.

    If I install the Euro Map for the 2013 500EXC, which I believe is a different MAP number then and MAP for the 2012 EXC, will that fix my flame out problem? Would like to know if anyone has done this.

    My 2012 500EXC runs perfect after the Euro Map was installed. It cost me $45.00 to have it done and I see no need for a tuner.
  9. bmgyver

    bmgyver Adventurer

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    Light greasing of the splines is to prevent the the splines on the countershaft from degrading over the life of the bike. Extra grease tends to go into the void behind the domed washer. In 75,000 miles over 3 ktm 4strokes I have never had a countershaft seal fail.
  10. Zuber

    Zuber Zoob

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    Close, but the fuel from the canister is sucked into the intake.

    The other emissions hose allows air into the exhaust, this is just like a huge exhaust leak and ignites the rich exhaust fumes. This makes the popping noise.
  11. boostracer

    boostracer Adventurer

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  12. Bengt Phorks

    Bengt Phorks Been here awhile

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    Right, but drain the canister to stop the popping.
  13. Harley Beemer

    Harley Beemer Adventurer

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  14. PatrickM

    PatrickM Been here awhile

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    Decided to try and desmog my stuff in a few steps to see what had the biggest bang (and because I didn't have the right crows foot wrench at the time to get to the SAS)

    With the stock ECU and the little noise screen in, there was little back firing but it's more muffled and a lot less noticeable / annoying.

    Removing the charcoal canister (without touching the Evap solenoid) didn't do anything. When I removed the silencer from the muffler, it actually seemed to increase the back firing and was obviously more noticeable. Taking the SAS out of the equation didn't help at all.

    Then had my ECU remapped and went for another spin. Again, nothing if not worse when backing off of the throttle - aggressively.

    But the biggest win? Shutting down that Evap solenoid. If anything that would seem to have cured the situation.

    Regardless, removing the charcoal canister, the SAS, the Evap solenoid (and air intake to the cylinder head) and finally remapping...

    Woo hoo. I'm riding it on the street these days (if you see a rider in BMW gear in Sunny CA...)

    ...and trying to keep my license. I can so see how this would get someone pulled over. Multiple times.

    For cities, you're not going to need to get past 100 and you have so many gates, err lights, and you can hook up really easy with some dual sport tires.

    Soooo many people are waving and motioning me to pop a wheelie...

    Same here.

    So much joy regardless!
  15. boostracer

    boostracer Adventurer

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  16. 2on2off

    2on2off Head'n somewhere new

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  17. 2on2off

    2on2off Head'n somewhere new

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    For those of you who like Corbin Seats, my 2013 500EXC is there right now. I loaned them my bike so they can create a mold and then be able to offer a wide and comfortable seat for the 500EXC.

    I had a custom one done at Corbin a few months ago and it really works great for me. Corbin uses their own custom foam that is more dense than other foam I have tried.

    Here is what my custom Corbin looks like on my 2012 500EXC and the mold they are creating will look very similiar.

    [​IMG]

    [​IMG]

    I love my Acerbis 5.3 gallon fuel tank. It is very sturdy and fits great with my KTM radiator guards.

    [​IMG]

    It is only slightly wider than the stock setup:
    [​IMG]
  18. SteveO

    SteveO ouch....

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    While the 500EXC are great bikes, I wouldn't purchase a Corbin seat if they were the last seat manufacture on the planet. I'd rather make my own seat than buy from these A**holes.

    They have ROYALLY screwed over some of my other 2-wheel brethren, and for that.....screw them.

    just my own opinion :D of them, based on their treatment of other people....
  19. Nomad

    Nomad High Speed Low Drag

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    don't know a whole lot about Corbin but my seat concepts order just shipped out and I can hardly wait to get that installed. hope it holds up to all the hype!
  20. Zuber

    Zuber Zoob

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    1000x. Corbin has screwed me over for the last time. Cheap materials, leaky seams, very hard foam, and usually a VERY HEAVY seat. If you ride in and get a custom seat you have a chance of getting what you want before you pay them. But after, forgetaboudit.