I got the same problem. Bike runs fine. I don’t have time to get to a dealer to reset this before my next race. Do you think it will harm anything to just run it?
Hey Morgan, I took mine in on December 10 for the reflash due to hitting the start button while it was running. The guys at my dealership had no idea about any of this. I explained what was going on thanks to your videos and after the update, the bike ran fantastic even better than before.
Hey Morgan.. after watching your video and how the geared mechanism works I might suggest that the power valve is two stage the first part opens the guillotine valve and then the second stage opens the sub ports which would be another reason for the nice progressive power delivery..
I have the 23' 125sx and also investigated the PV mechanism. If you pull off the servo to do a top end and leave it connected with the snap connector, you will not need to do anything, just simply re-install the servo and connect it back inside the pv cover. Then for a safe measure do the pv dongle reset, the dealer can also do do this from the KTM XC_2 tool, but that process they actually don't touch the throttle, they plug it in and run a reset. If you unplug the snap connector for any reason at all, you will throw the Fi light and it will need to be recalibrated with the dongle, but the dealer will need to clear the code. My pv looks the same but different, large guillotine flapper and the two subs. It's interesting that on mine the sub ports open first, then at the end, the large flapper. In previous KTM's and most other bikes like the YZ250, the subs opened LAST or all at once like on the previous 125sx with those long barrels. I would love to talk to you about these bikes, my RUclips channel has a video series/breakdown of things to look at and document. These are super finicky with regard to the AFR, reeds, octane, etc. Follow me I follow you! We can help each other! Thx- J
@@dustinmoore8909 It's the physical connector that plugs into the bottom of the servo off the harness. I call it that bc it snaps shut when plugged in. But you can call it whatever lol. Connector is fine 🤣
Very cool! I’d like to see you tear it apart further to see how it works. I was thinking it would have been more like a snowmobile power valve, but it’s way different. Very interesting. Thanks for the video Morgan.
I'm transferring the power valve to a new cylinder on my 2023 ktm 300 sx (it had a crack from overheating). This was super interesting to see how it actually worked. Sick! Thank you!
Grant - how’d the swap go? I have to do the same thing on my 23 tx 300. Disgusting ktm refuses to bs their way around warranty. Complete joke. No videos on how to do the power valve yet. How’d it go for you?
Morgan, thanks for the Christmas present of more XC exploration. When you go to the dealer and they plug it in for flashing it should show the map needed for installation. James Dean went in for the reflash and the P104 code solved the stuff you were talking about on his TX300, rich on the bottom, flashing FI, erratic idle. This was about 2 weeks ago. I took the bike in for reflash and it runs great now. The dealer said this will be a mandatory reflash for all bikes coming in for service. He didn't even know about it til I was at the counter with the bike. Merry Christmas, freezing rain here for a couple days (Oregon).
Thanks for your video and info. I was curious if you have checked into Pin It Racing's power valve cover (right side of the engine). The claim is the 2-stroke hit comes on much sooner. TSP also makes one, but Pin It Racing's is much less money. Pin It Racing also has a spark arrestor attachment claiming 2-3 hp gain.
I’m going to guess that part of why this motor runs so good and the power feels so good is due to the control they have with the electric power valve. I don’t love that it’s another thing to go wrong but it’s pretty cool!
Shercos have had them for years and are pretty reliable. They had a few problems on the first years but it is now pretty good. The current design for the last 3-4 years is very similar to what KTM is using for 2023, at least in how the servo mechanically actuates the valve
Not sure if this is a concern after you removed the cover, but the 23’ TX 300 maintenance manual on page 183, bottom of the page reads, “info. If the actuator of the exhaust control has been removed, the end positions of the exhaust control must be reprogrammed”. Nothing in the manual about the dongle doing the reprogramming that I found. This is what I found for the exhaust control setting, Page 201 Section 17.4.10 Installing the exhaust control. Do you think this has to be done I you pull that cover/actuator every time?
I think that as long as you don’t unplug the actuator, you can just do the dongle thing and you’ll be good. The only reason mine blinked is that I unplugged everything.
Not related to the content...but does the tusk radiator fan have a temp display on it? I don't see one. My KTM one doesn't on my 21 but the Tusk used to I believe.
You can just buy a rad cap with temp gauge in it for like 20 bucks from rocky mountain. That and the ktm plug play fan seems to he the best cheaper option
Thinking out loud here, but I wonder if the rotation in the shaft before it engages the teeth on the "power valve thingie" opens the sub ports first, then the main flapper opens as the big toothed thingie rotates. These are highly technical terms of course, took years of experience to learn them 😄
There is a fix for the problem of accidentally hitting the start button. There is a new map that fixes that. In this case it’s blinking because I unplugged the actuator so I have to take it in to get it cleared.
Bro, my 23 250xc blew before 10 hours! 120psi. Can't believe the parts prices for these things. Here trying to get visuals on the repair im going to do myself, doesn't look to difficult.
@@highlandcycles Just finished your 300xc top end video and have it apart. I guess I wasn't giving it enough warm up time and did some damage to the cylinder from the looks of it.
I wonder if just disconnected the battery would reset the light? Also unplugging things and removing things with no power on should not set off a code.
Crazy how far technology has even brought the newer bikes and shit its just nuts after 50yrs of the same technology coming to a point everything we've learnt turning wrenches all these years is just gonna be completely useless kinda scary to think about especially after seeing what it's done to the automobile where the days of a tune up or even a oil change in ur own garage has almost became impossible
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
UPDATE! The code was not the power valve. It was because we hit the start button while the tank was off.
4 strokes are the same way when the start Botton is hit with the fuel line off. Crazy looking linkage on that pv! Thank you.
I got the same problem. Bike runs fine. I don’t have time to get to a dealer to reset this before my next race. Do you think it will harm anything to just run it?
@@rmz250irish It will be fine
Cool to show the action of it when you plugged in the dongle. I’d love to see a vid of the power valve being totally rebuilt as it’s a new design.🤙🏻
Hey Morgan, I took mine in on December 10 for the reflash due to hitting the start button while it was running. The guys at my dealership had no idea about any of this. I explained what was going on thanks to your videos and after the update, the bike ran fantastic even better than before.
"The guys at my dealership had no idea about any of this."
Which is why i can never buy a KTm product.
Sounds like a crappy dealership. Most places should know
Hey Morgan.. after watching your video and how the geared mechanism works I might suggest that the power valve is two stage the first part opens the guillotine valve and then the second stage opens the sub ports which would be another reason for the nice progressive power delivery..
I think you are right.
I have the 23' 125sx and also investigated the PV mechanism.
If you pull off the servo to do a top end and leave it connected with the snap connector, you will not need to do anything, just simply re-install the servo and connect it back inside the pv cover. Then for a safe measure do the pv dongle reset, the dealer can also do do this from the KTM XC_2 tool, but that process they actually don't touch the throttle, they plug it in and run a reset.
If you unplug the snap connector for any reason at all, you will throw the Fi light and it will need to be recalibrated with the dongle, but the dealer will need to clear the code.
My pv looks the same but different, large guillotine flapper and the two subs. It's interesting that on mine the sub ports open first, then at the end, the large flapper. In previous KTM's and most other bikes like the YZ250, the subs opened LAST or all at once like on the previous 125sx with those long barrels.
I would love to talk to you about these bikes, my RUclips channel has a video series/breakdown of things to look at and document. These are super finicky with regard to the AFR, reeds, octane, etc.
Follow me I follow you! We can help each other! Thx- J
What is the "snap connector"?
@@dustinmoore8909 It's the physical connector that plugs into the bottom of the servo off the harness. I call it that bc it snaps shut when plugged in. But you can call it whatever lol. Connector is fine 🤣
Was great that you showed all of that! Game Changer stuff right there.
Hahaha, totally.
Spectacular video, as cra,zy as it looks, it certainly works well, can't wait to see the top end. Thanks for exploring for us.
Very cool! I’d like to see you tear it apart further to see how it works. I was thinking it would have been more like a snowmobile power valve, but it’s way different. Very interesting. Thanks for the video Morgan.
I will have it all the way down when I do a top end.
Game Changer
I'm transferring the power valve to a new cylinder on my 2023 ktm 300 sx (it had a crack from overheating). This was super interesting to see how it actually worked. Sick! Thank you!
Grant - how’d the swap go? I have to do the same thing on my 23 tx 300. Disgusting ktm refuses to bs their way around warranty. Complete joke.
No videos on how to do the power valve yet. How’d it go for you?
Pretty cool and interesting, and I don't even have an EPvalve. thanks
Can't wait to see the procedure how you will change the piston :)
Should be in the manual of the bike no?? Lol
Morgan, thanks for the Christmas present of more XC exploration. When you go to the dealer and they plug it in for flashing it should show the map needed for installation. James Dean went in for the reflash and the P104 code solved the stuff you were talking about on his TX300, rich on the bottom, flashing FI, erratic idle. This was about 2 weeks ago. I took the bike in for reflash and it runs great now. The dealer said this will be a mandatory reflash for all bikes coming in for service. He didn't even know about it til I was at the counter with the bike. Merry Christmas, freezing rain here for a couple days (Oregon).
I already did that one. And it was great. Unfortunately when you unplug the actuator it sets off the code again.
Thanks for your video and info. I was curious if you have checked into Pin It Racing's power valve cover (right side of the engine). The claim is the 2-stroke hit comes on much sooner. TSP also makes one, but Pin It Racing's is much less money. Pin It Racing also has a spark arrestor attachment claiming 2-3 hp gain.
I haven’t. I’m looking at the TSP one.
ya your always making g these cool videos
Thanks
Always good fun and informative to wach 😁🤘
Glad you think so!
Awesome
I’m going to guess that part of why this motor runs so good and the power feels so good is due to the control they have with the electric power valve. I don’t love that it’s another thing to go wrong but it’s pretty cool!
It is definitely part of why it runs so well. I am with you about worrying about it but oh well!
Shercos have had them for years and are pretty reliable. They had a few problems on the first years but it is now pretty good. The current design for the last 3-4 years is very similar to what KTM is using for 2023, at least in how the servo mechanically actuates the valve
Hi, what brand front rotor cover is that? Thanks for taking the time for the video.
That is from System Tech Racing. Best one out there!
Thanks so much.
I picked up a 2023 XC 250 few weeks back .
Game changer powervalve lol.
Hahahah
Not sure if this is a concern after you removed the cover, but the 23’ TX 300 maintenance manual on page 183, bottom of the page reads, “info. If the actuator of the exhaust control has been removed, the end positions of the exhaust control must be reprogrammed”. Nothing in the manual about the dongle doing the reprogramming that I found. This is what I found for the exhaust control setting, Page 201 Section 17.4.10 Installing the exhaust control. Do you think this has to be done I you pull that cover/actuator every time?
I think that as long as you don’t unplug the actuator, you can just do the dongle thing and you’ll be good. The only reason mine blinked is that I unplugged everything.
When unbolting the actuator, should it be under pressure?
No
Thanks Morgan, does that mean it's not adjusted properly from factory?
@@michaelcurrier7984 not sure. Might just need to be reset. You are taking about the electronic actuator right?
Yes
Not related to the content...but does the tusk radiator fan have a temp display on it? I don't see one. My KTM one doesn't on my 21 but the Tusk used to I believe.
It does. It is up on the steering head
You can just buy a rad cap with temp gauge in it for like 20 bucks from rocky mountain. That and the ktm plug play fan seems to he the best cheaper option
Also aI hope you will find what was a problem and solution how to reset this EFI code error
Thinking out loud here, but I wonder if the rotation in the shaft before it engages the teeth on the "power valve thingie" opens the sub ports first, then the main flapper opens as the big toothed thingie rotates.
These are highly technical terms of course, took years of experience to learn them 😄
Hahaha. I think you are probably right. Looking forward to taking it off soon.
In case I missed it, was there ever a “fix” to the blinking Fi light?
There is a fix for the problem of accidentally hitting the start button. There is a new map that fixes that. In this case it’s blinking because I unplugged the actuator so I have to take it in to get it cleared.
Awesome thanks! Did you do a video on this “other map” or have any other info?
@@hyslopboys9600 I didn’t. I don’t have any info other than it solves the start button problem
Thanks man. Keep up the awesome videos !!!
So as a 2017 xcw 250 carb ( with JD jetting) that runs well.. are you sold on KTM modern FI ?? Think it’s worth to make the FI leap ?
So, I have an 18 carbed 300 and let’s put it this way. I’m not selling my 18 yet but I don’t know how much I’m going to ride it.
@@highlandcycles thanks 👍🏻
Bro, my 23 250xc blew before 10 hours! 120psi. Can't believe the parts prices for these things. Here trying to get visuals on the repair im going to do myself, doesn't look to difficult.
It’s easy
@@highlandcycles Just finished your 300xc top end video and have it apart. I guess I wasn't giving it enough warm up time and did some damage to the cylinder from the looks of it.
@@Dat_Sun dang
KTM has a software update that solves the Fault 50 code FYI
I know. Turns out this wasn't that fault code. I pinned my discovery at the top of the comments.
So how would you keep this area clean? Maybe some brake cleaner lol!
Hahaha
Lot easier to take the barrel off with no power valve linkage 👍
Yep
I wonder if just disconnected the battery would reset the light? Also unplugging things and removing things with no power on should not set off a code.
The batt trick doesn’t work on this unfortunately. And yeah, I know. I did touch the actual part that moves the valve so maybe that was it?
ktm = john deere of motorcycles
Heck ya, love both brands 🚜🏍👊
🔥👊🔥🏍⚙️🔨
Crazy how far technology has even brought the newer bikes and shit its just nuts after 50yrs of the same technology coming to a point everything we've learnt turning wrenches all these years is just gonna be completely useless kinda scary to think about especially after seeing what it's done to the automobile where the days of a tune up or even a oil change in ur own garage has almost became impossible
If you think that's cool check out any skidoo etec motors from 2013-2023. That's what a real 2 smoker motor looks like.
Yeah. They are rad
I’ll stick with YPVS lol
New top end at 50 hours? Everything inside will be as new.
That is what I hope.
First again!!
dammit! by seconds.
You do the top end early, cause you know its Trash😀
I actually don’t on this bike but you never know
Its a good idea to change it soon and go with a forged Piston. Greets from Germany, keep it up