2017 500 EXC-F and 350 EXC-F

Discussion in 'Thumpers' started by noahr, May 17, 2016.

  1. DIRTLER

    DIRTLER Been here awhile

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    Thank You for letting me know there is ''NO'' spark arrestor on that model muffler.
  2. DIRTLER

    DIRTLER Been here awhile

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  3. Bitingdog

    Bitingdog That's not my dog

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    Carbon fiber looks awesome, but I don't think that it's a suitable material for skidplate. Yes it's strong, but it isn't flexible. It cracks when subjected to hard impacts. Aluminum or plastic is more functional choice IMO.

    Of course YMMV
  4. DIRTLER

    DIRTLER Been here awhile

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  5. Ross Foy

    Ross Foy Been here awhile

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    Dirtler,

    I looked quite a bit and finally found it on AOMC. I think you actually have to click on the plate/description and look what bikes it fits rather than just browse down the page. It looks great and it fits perfect. It can be a little bit of a pain installing at first but not to bad. It's a really sleek design and a good price point.
    DIRTLER likes this.
  6. TLtrials

    TLtrials Been here awhile

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    NW North Carolina
    My friend with his GoPro, he is playing the fox on the 350 'Berg... I am the rabbit on my 350 EXC-F... Cherokee National Enduro a few weeks ago.

    The 350 EXC-F is such a great dirt bike.

  7. DIRTLER

    DIRTLER Been here awhile

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    STU, I would like to ask for some help if you could click the link #475 for some 450 talk. Thank You!
  8. DavidCarlson

    DavidCarlson Adventurer

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    You can clearly see the SA in this pipe, I don't know why it would come without it. I purchased mine used from a FE 450 and it came with the SA.

    Sent from my SM-T817V using Tapatalk
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  9. Stu

    Stu Buffo Maximus

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    My Akrapovic complete system (sourced from England) came with a removable sound baffle and a spark arrestor screen about half way down inside the muffler. It is designed specifically for the 2017 450 EXC-F Six Days.

    Stu
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  10. Ross Foy

    Ross Foy Been here awhile

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    Has anyone else had any starting issues their stock 17 500? My bike only has about 5 hrs on it, and it never wants to run after starting and takes a while to warm up. Getting to see first hand the fueling issues of these new bikes.
  11. clawdog60

    clawdog60 Long timer

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    Mine was very finicky below 30f when I first bought it. I learned it's preferred starting sequence.
    Starting has gotten progressively better and easier with run time. For some reason I don't have the operation issues some are experiencing.
  12. DIRTLER

    DIRTLER Been here awhile

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    I think it helps if the idle is kind of high as 1950 or 2000 rpm? Do have a 2016 and setting the idle up high helped a lot. Also the TPS setting may be off however, what is it suppose to be set at? My service manual for 2016 says .601 but does the 2017 service manual have it specified? No one seems to know?
  13. TriumphTriple

    TriumphTriple Adventurer

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    I did but set the TPS at .64 and it was better. Then I got the EU map and it fires right up. Still have the TPS at .64. Stock the idle was 1600 rpms. I bumped it up to 2000 rpms and all is well.
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  14. two trackin fool

    two trackin fool Long timer

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    My 17 was set @ .54 factory

    Sent from my SM-G930V using Tapatalk
  15. DIRTLER

    DIRTLER Been here awhile

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  16. Ross Foy

    Ross Foy Been here awhile

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    Thanks fellas. A friend of mine has a 16 and has a TPS tool and I'll try bumping it up. It's a little frustrating ktm put this bike out like this and no easy remedy to fix. So on an otherwise stock bike .64 is a good place to start?
  17. two trackin fool

    two trackin fool Long timer

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    As I remember .64 was the sweet spot . Mine is currently set there as well .
    I am pondering putting it back stock BUT only because I have done all of the euro options except for the map switch.

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  18. Nobiman

    Nobiman Orange... the color of insanity.

    Joined:
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    La la land... republik of Kalifornia.
    Well my new orange steed threw me 2 curve balls yesterday after traveling to one of my fave ride spots an hour and a half from home. The first curve ball completely baffled me and the second just disappointed.

    Curve ball #1:
    After unloading the bike and starting it to warm it up, I sat back down on the tail gate of my truck to put my boots on. It was then that I noticed a clear fluid dripping profusely and steadily off of the skid plate and onto the ground! I went over dabbed it with my finger to smell it half expecting it to be coolant, and it was fuel! Of course I instantly turn the bike off, and just in time because the pipe was warming up and starting to smoke as it evaporated the fuel off of it!

    Nearly a fooking bike on fire!!!

    I was flabbergasted to say the least as I nearly panicked trying to make sure it didn't pop a little flame somewhere and start an unstoppable fire. After looking closely at the bike I noticed fuel dripping off of nearly everything under the tank including the F.I. unit and finally traced it up to the tank vent line. So I pulled the vent line out and away from the bike and after I was sure that all of the fuel on the engine had evaporated, I started the bike again to see what the heck was going on. Within 30 seconds the fuel was running out of the vent hose while the bike was running. I have a video of the situation but it won't load here for some reason.

    Here is a picture of it, its just shy of a steady stream of fuel coming out as long as the bike is running.
    Fuel over flow..jpg

    My first thought was that I over filled the tank a few hours before so I removed the cap and looked and found the level to be an easy inch and a half from the top of the tank.
    Fuel fill.jpg

    I went through 3 start up and shut down cycles with the bike trying to figure out why I had fuel exiting both ends of the tank, one keeping the bike running and one spewing fuel out of the top. On the 3rd attempt the issue disappeared and the fuel stopped coming out of the vent line. ????? I have no idea why or how this happened. As I have stated before, this is my first fuel injected bike and although this predicament makes no sense no matter how the bike is fueled, I am miffed here. I have heard of and experienced having the vent tube getting pinched creating a vacuum in the tank and causing the motor to die, but I have never experienced a constant stream of fuel exiting the vent tube and then stopping for reason's unknown.

    I am hoping for a simple answer to this issue so that I do not have this in the back of my head every time I ride the bike. Actually, I will not ride it until I know what the hell is going on and I will also be re attaching the vent tube to the Evap system until I am sure that this will never happen again. So if anyone here has input on this weird phenomena........ I am all ears, bring it on.

    Curve ball #2:
    After the fuel issue seemed to have corrected itself and the bike was still sitting there running and barely up to temperature, I was sitting there with my mind mostly made up to load the bike and go home until I figured out what the heck was going on with the fuel system. About that time I heard a resounding Pssssssss and I was suddenly being covered with more fluid, this time it was antifreeze and it seemed to be coming from the left radiator area of my new bike (yeah, only 10.2 hours and 225 miles on the clock!). So once again I ran over to the bike and switch the key off! As the pressure went down and the new found fountain started to subside, I could see that the coolant was coming from the radiator crossover hose that runs from side to side through the frame. After closer inspection I found a pin hole in the hose and could tell by looking at it that the hole had developed in what looks like a casting area of the hose that did not properly form during production.
    Rad leak.jpg
    Rad leak3.jpg
    See the casting line here? The part is $45 retail and cheaper with my KTM Talk discount, and yes, the bike is still under warranty for another month but the thought of some 16 year old kid at the stealership wrenching on my bike with cresent wrenches and pliers is not much better than the thought of the bike on fire in the parking lot where I discovered the problems.

    I was standing there in disbelief as I pondered what would have happened if either problem would have waited until I got way out in BFE to raise its ugly head and left me with a much bigger problem. So I'm thankful that they both happened in the parking lot and not out in the Dez but sheeesh! Needles to say, the bike got loaded back into the truck and I headed home with many questions on my mind to think about as I drove.

    I wish the video of the bike running while also pushing fuel out of vent tube would load, its quite the paradox in my mind.

    I will most likely post curve ball #1 in the tech section unless someone here can explain to this F.I. newbie how the heck this could happen, and give a solid fix to keep it from happening again.

    These obviously are not the weekend experiences that I had hoped to write about today but hey, my bike is still in one piece, I'm still in one piece, and no real damage has been done. So now the research starts on WTF happened to my fuel system and why.

    Any inmates that want to offer their F.I. expertise here are more than welcome to do so.

    Cheers.
  19. Proud Highway

    Proud Highway one hand waving free

    Joined:
    Jan 16, 2011
    Oddometer:
    58
    I've always run one of the stubby vents on my Acerbis tanks without any trouble. This is a shot in the dark, but the only thing that makes me suspect venting is this
    which could be indicative a a suck/spew cycle.

    Another think you may want to try is attaching your current vent hose to the cap and checking its operation ora...uh...with your soup cooler. Make sure it's flushed of gas first, I don't want to be responsible for turning you into a huffing fiend :)


    [​IMG]
  20. Nobiman

    Nobiman Orange... the color of insanity.

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