KTM & Husqvarna TPI Exhaust Valve Explanation, Test & Adjustment

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In this video I explain how the KTM & Husqvarna TPI Exhaust Valve works, how to test it and how to adjust it if required.
KTM & Husqvarna TPI 2-Stroke CAN Bus OBD2 Scanner Data & Diagnotics video: fiboth.info/like/videot/hqusZIbY3bHOlZ0
Scanner Tool- ELM327 Wifi Scanner
Cable- Lonelec KTM OBD2 Diagnostic Plug Adaptor
SmartPhone App- Car Scanner (free version)
2021 KTM 300 EXC TPI
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  • Wondering if you have any advice on the 2021 With GET ignition and fuel injection mods? Have the same setup on my 2019 300 and its Perfect. 2021 isn't there yet. This is Extremely helpful info thanks!

    WFO DaveWFO Dave5 päivää sitten
  • What is your opinion to change the z distance increase or decrease the adjuster height.....i search for little more torque at the bottom.....ktm 300 tpi s3 head,coober ecu, vforce4,idle skrew mode..

    Ak bounAk boun7 päivää sitten
  • Great video, what does 1/4 turn equal in the increase in revs at the point were the valve opens - many thanks :-)

    Philip SmithPhilip Smith23 päivää sitten
  • Thank you, you are very good at explaining these things. I will be watching all of your videos, I appreciate it!

    Jamie BJamie BUukausi sitten
  • Awesome video, thank you very much!!! Love the way you explain and show things. Great show.

    Kimo JonKimo Jon2 kuukautta sitten
  • great explanation as always, thank you. What about adjusting it on the tpi, do you have video planned for that?

    AlexAlex2 kuukautta sitten
  • has anyone messed with the power valve on the tpi bikes and seen what it does yet..?

    bernhard85bernhard852 kuukautta sitten
  • Hello hows it going my name is Christian Quezada i watch your channels and see that you know these ktm well can you help me my 06 ktm 300 xew it iddles ok and when i drive it it accelerates relly fast almost wants to knock me down i cleaned the carb twice im scarde that its gonna drop me any help

    Chris QuezadaChris Quezada2 kuukautta sitten
  • Great video, very clear instruction 👍🏻

    TG243TG2433 kuukautta sitten
  • Hi Mark... hope you’re doing ok! Can you share the app for OBD scanner for IOS?

    Wild EnduroWild Enduro3 kuukautta sitten
    • Yes, doing OK thanks. I used the free version of "Car Scanner" for iOS

      Tokyo OffroadTokyo Offroad3 kuukautta sitten

    Iqra MalikIqra Malik3 kuukautta sitten
  • @ 1:00 , Not so much smaller exhaust port but "lower" exhaust port. This effectively lengthens the power stroke which is what gives you more torque. The piston has a longer push before the port opens.

    RIPPERTONRIPPERTON3 kuukautta sitten
    • I didn't say smaller exhaust port. I said lower exhaust port height. We're saying the same thing...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Great info for owners of these bikes. Lots of hearsay and bad voodoo miss information out there, it's refreshing to see someone who actually understands efi and the subject material. Well done 👍

    DangermouseDangermouse3 kuukautta sitten
  • Very impressed good brake down and explained very well .... they say you learn something new every day 😎👍🏻

    James CruickshanksJames Cruickshanks3 kuukautta sitten
  • Best video for hardware.

    Korea rough terrain channelKorea rough terrain channel3 kuukautta sitten
  • How many hours you put on your 2017 300 before you got this new tpi?

    Willy DWilly D3 kuukautta sitten
    • My 2017 has 456H on it. It's a 250. You can see me overhauling the bottom end here. I'm going to convert it to a 300 as I have a new (used bike) which is also a 2017 250: fiboth.info/like/videot/nXqlrHvF2JXPq3s

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Great and informative video as always, Mark - Thank you! What about a 2017 model, how do we check the RPM there? haha

    Nir HasonNir Hason3 kuukautta sitten
    • I have a digital tachometer with a wire pickup which you wrap round the spark plug cable. Be sure to set the engine type correctly (single cylinder, 2-stroke) or the rpm will not be displayed correctly...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Great video! Is there a tachometer you recommend for carbureted models?

    Ohio Dirt Bike RidersOhio Dirt Bike Riders3 kuukautta sitten
    • @Tokyo Offroad My old bike had that style tach/hour meter, but from what I remember it didn't respond very quickly to changes in rpm. I'll reply to this if I come across something more suitable.

      Ohio Dirt Bike RidersOhio Dirt Bike Riders3 kuukautta sitten
    • Pleased you enjoyed the video. I have an unbranded digital tacho with a pickup wire which wraps round the spark plug cable. Works OK. I haven't tried any other so it's difficult for me to recommend one.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Nice and simple explained. Greetings from southern Poland

    ENDURO GRYBÓWENDURO GRYBÓW3 kuukautta sitten
  • Nice video! Thanks for the explanations 😊 Just a question : we ate ok that change the setup fo this springs don't change de max rpm engine? I have a te150i but she don't take high rpm.

    onikenji88onikenji883 kuukautta sitten
    • I would suggest to start by setting your PV to spec settings and then test and see if it revs out OK. If it still doesn't rev out then you know the issue isn't the PV setting...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Will that thing flash the ECU?

    BaldknobbyBaldknobby3 kuukautta sitten
    • Unfortunately no, it will not.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • The OBD link doesnt work

    CrazystuffyouseeCrazystuffyousee3 kuukautta sitten
    • @Crazystuffyousee - Not sure what happened there! I just updated the link in the description and it's working now. Thanks for your feedback...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Tokyo Offroad - Thank you. This link works. The one in the description does not.

      CrazystuffyouseeCrazystuffyousee3 kuukautta sitten
    • @Crazystuffyousee - The links work for me. This is the one for the cable: www.lonelec.co.uk/Motorbike-and-Car-OBD2-Adaptors/OBD2-Motorbike-Adaptors/KTM-6pin-OBD2-Adaptor

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Tokyo Offroad - No...the link you posted in the description doesn't work. It says the page doesn't exist.

      CrazystuffyouseeCrazystuffyousee3 kuukautta sitten
    • What able are you using? If you look into the cable’s 6 pin connector, how many pins have been populated? If you see only 3 pins it’s not the correct cable for this application and won’t work. For details regarding the cable I used (sold by Lonelec in the UK) check out the video I linked to in the description of this one.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Thank you for the video!

    Ariel ToronAriel Toron3 kuukautta sitten
  • Great video as always Mark👍

    Mark OliverMark Oliver3 kuukautta sitten
    • Thanks and pleased you enjoyed it...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • My 2019 6days 250 came from factory with preload 1/4 turn out from flush. Opening at around 4450rpm, when adjusted to 5500 the bike bogs and hesitates as it starts to open🤷‍♂️. Can’t work out why

    darren hdarren h3 kuukautta sitten
    • @Tokyo Offroad to be honest I haven’t worried too much about it. Just mentioned it cause don’t hear of them set like this. Always ran very rich. Air screw was 3 1/4 out from factory too. Used to have low rpm splutter but sorted that with tsp med comp head and ecu. And run Pv 1/4 in from flush, air screw 2 1/4 and has way more power than stock. Still rich though fair bit spooge out the pipe. Have done all fuel filters and on top of all the ‘common’ tpi things. This bike just is how it is. It’s odd I know. Don’t know why🤷‍♂️ but I get 120klms from a tank and its goes hard

      darren hdarren h3 kuukautta sitten
    • @darren h I see. Yes, your factory set preload adjuster setting sounds very unusual. Have you taken the adjuster off the bike and checked that the springs are installed correctly. Other checks to make are regarding fueling (check fuel pressure, fuel filters, injectors). Have you discussed the problem with your KTM dealer?

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Tokyo Offroad not that either. I had the erratic revving and I always clean that hose. I got a lot of gunk out of the actual ccps. U might have seen it on two stroke performance fb page. That fixed the erratic revving holding stable throttle but the bike likes pv opening early. Haven’t seen another bike that had same preload setting from factory like mine

      darren hdarren h3 kuukautta sitten
    • One common issue is that the crankcase pressure sensor tube and fitting can get blocked and cause higher rpm bogging. I made this video about the issue. Certainly worth checking yours (remove the brass fitting from the crankcase and make sure it's clear): fiboth.info/like/videot/eoZ4fpyp0aivhG4

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Awesome, thank god theres Tokyo Offroad on FIboth. Quality, trustworthy information, explained perfectly. Thanks for taking the time to make these videos.

    Nick DNick D3 kuukautta sitten
    • Thanks. Pleased that you enjoyed the video...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Random question, but i have a 19 250XCF and the e start does not work at all anymore.. About one month ago it started to really lag/delay when I would hold it. I would have to hold it, let go, hold it for about 4 seconds and it would finally crank. Then it turned into holding it for 6-8 seconds, and then even 9-10. Now it does not start at all. Is the stator or starter the issue? The battery is fully charged and the connections are clean. (I had to bump start it on my last ride because of the issue)

    Ryan RussellRyan Russell3 kuukautta sitten
    • @Tokyo Offroad okay appreciate the help.

      Ryan RussellRyan Russell3 kuukautta sitten
    • Sorry, I’ve just noticed your bike is a 4-stroke. I haven’t worked on a 2019 250XCF so it’s best to refer to the repair manual (which includes wiring diagrams too).

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Ryan Russell - I’m assuming that you’re talking about the start motor solenoid. The solenoid is located under the seat. The control wires run from the starter switch to the solenoid. The start motor power runs from the solenoid to the starter motor terminals located on the right side of the bike. There is no starter related wiring inside the stator cover.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Tokyo Offroad Are the wires for the solenoid behind the ignition cover? Or under the seat?

      Ryan RussellRyan Russell3 kuukautta sitten
    • @Ryan Russell Do you have a multimeter? If so set it to voltage mode and measure the voltage on the solenoid white/red wire (should be 12V, if not then the fuse is probably blown). Next measure the voltage on the solenoid blue/red wire (should normally be 12v, then change to 0v when the starter button is pressed, if it doesn't go to 0V then the wiring/connector/starter switch are most likely causes). If both of the measurements are OK then the solenoid may have failed and will need replacing.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Brilliant. Mate of mine started turning his with no reference. Can now reset and check as Iv’e also order the diagnostics tool. Top job.

    Neil AveNeil Ave3 kuukautta sitten
  • Superb. As always. To the point.

    Sorin NSorin N3 kuukautta sitten
  • the idle speed for the 2020/21 is waaayyyy low.....I have mine around 1800-2000rpm.

    desmonchilddesmonchild3 kuukautta sitten
    • As I mentioned in the first ride impression video, my 2021 300 TPI does not stall easily at all... fiboth.info/like/videot/m5RjnIW71JXTn60

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @desmonchild - Typo, 2021 and fixed now. Yes, it runs fine with the idle at 1500rpm

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @Tokyo Offroad you have a ktm 2012 too??.....come on!...mine is a 2007 and in 1500rpm won't run(too much stalling,also I have a rekluse 3.0 core that's y mine is set to 1800+ rpm)

      desmonchilddesmonchild3 kuukautta sitten
    • Interesting. The KTM idle spec in the manual is 1400-1500rpm. My 2021 300 TPI is about 1500rpm and runs fine.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
    • @C Fuhry What do you mean ??.....I don't understand.

      desmonchilddesmonchild3 kuukautta sitten
  • Adjustment all depends on what power delivery you prefer for your riding conditions. I ride greasy rooty trails with a lot of steep transitions. I run the stiffest spring...and set it by feel, which is in far enough to keep it off the pipe until the throttle is almost wide open. Basically it opens much later than stock. It lugs better and I have more control over traction.

    Dave NawahineDave Nawahine3 kuukautta sitten
    • The same for me. I put red spring and all unscrewed. 200h with a 300 tpi 2018 without problems. I don't know why Ktm doesn't want to touch this regulation...

      JontuJontu3 kuukautta sitten
    • I also did this with my tpi, no problem at all was much more controllable and still ran perfectly. Ive no idea why they dont want you to fiddle with the powervalve.

      kevinjohnoflynnkevinjohnoflynn3 kuukautta sitten
  • Save yourself every other video on this subject and just watch this. I can't get the 5 hours back I've wasted on every other channel. Great video as always.

    Andrew BoundyAndrew Boundy3 kuukautta sitten
  • Great explanation, Why did the 500cc motors opted out on the power valve back in the day?

    PaulXT1200ZPaulXT1200Z3 kuukautta sitten
    • The Kawasaki KX500 had a power valve. And the modern day BRC 500 has a power valve. However the Honda CR500 doesn't. Why? Reasons I can think of include cost and performing "good enough" without one as most people would short shift 500s anyway.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Best power valve video yet! By far!!! Thank you!

    Curtis RedmerskiCurtis Redmerski3 kuukautta sitten
  • Can you do a video on how to best fix the PV stop bolt leak on the front of the motor. Is it as easy as removing the nut and putting sealant on the the bolt threads or do you need to remove the cylinder for better access? Again, asking about the PV stop bolt leak, not the PV valve cover leak.

    Jack BauerJack Bauer3 kuukautta sitten
    • @C Fuhry I repaired the leak on a 2020 250 XCW using the earlier model years (2018, 2019) power valve insert and the two rubber sealing rings (top and bottom) of the insert. This will fix the leak. For whatever reason in 2020 the tolerances in the case where the sealing element inserts is too loose. When you compare the two sealing elements you can feel the difference in how tight the older year parts fit. Cheers

      Code 4 Vehicle LightingCode 4 Vehicle Lighting3 kuukautta sitten
    • My 2020 300 exc also leaks a little. I ordered the replacement seals recommended, which I think we're the same as 2019. I believe KTM also updated their specs to the new part. 54637107000 SEALING ELEMENT BOTTOM 54837091100 SEALING CARRIER 07

      C FuhryC Fuhry3 kuukautta sitten
    • @Tokyo Offroad My 2020 300 xcw also has a leaky power valve. I’d like to see that fix as well.

    • @Tokyo Offroad Thanks Mark.

      Jack BauerJack Bauer3 kuukautta sitten
    • Noted. I've only ridden my 2021 for one ride (just under 3H) and haven't noticed bolt leaking oil so far. I'll keep my eye on it and if it starts leaking will make a video, including a fix...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • Are these factory settings for best performance or for emissions ?

    JAMES DENTONJAMES DENTON3 kuukautta sitten
    • @Tokyo Offroad "The secondary spring starts to take effect right around 5600rpm and that's regardless of where the dolly screw is set." JD Jetting. pbase.com/jdjetting1/image/162720650 Love the videos, keep up the good work.

      Kenneth WetmoreKenneth Wetmore3 kuukautta sitten
    • @Tokyo Offroad Thanks for the speedy input .

      JAMES DENTONJAMES DENTON3 kuukautta sitten
    • Good question! The TPI 5,500rpm exhaust valve initial opening spec is close to the carb model bikes' spec. The exact spec changed depending on the year model. Example: 2018 KTM 250 XC W carb bike spec was 5,250rpm and 2018 KTM 300 XC W carb bike was 5,500rpm. As such I think the TPI spec is a good baseline performance setting.

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • What is your opinion on changing the PowerValve to suit different rider preferences on TPI bikes? In earlier models it was more like "set it how it suits you" and not like "here is the spec, set it and dont touch it" Kyle from DirtBikeChannel made a video about that and i am keen to hear your opinion on that matter! Heres the Link to his video: fiboth.info/like/videot/gpOJaJGbl7Spd24

    V FV F3 kuukautta sitten
    • @Tokyo Offroad Thanks a lot for your feedback, I will follow that videos as your content is way more "scientific" as other channels thus making your informations a lot more sound. Is it possible to install a O2 Sensor in the system to messure the Air/Fuel ratios from stock/ RKTekHead+ECU/ RKTek+ECU+PV changes, or is this not a "practical" solution? Keep the great content coming! :)

      V FV F3 kuukautta sitten
    • My opinion is that there's a big difference between carb bikes and TPI. When performance mods are made to a carb bike, if the bike feels lean, or rich after the mods the owner can easily tune the air/fuel mixture using the carburetor (E.g. change pilot, main, needle, or adjust the airscrew). With the TPI you can't easily make changes to the fueling if using the stock ECU. As such you need to be careful what mods you do and closely monitor how the bike feels after making a change, or you could make the bike run more poorly, or worse case damage the engine. My plan for my 2021 KTM 300 is to next fit and test an RK Tek head, while leaving the PV setting stock. After that I plan to install a GET ECU and may decide to test different PV settings at that time. I'll be making update videos as I go and will share my honest thoughts regarding how the bike feels after each mod...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten
  • very good video

    랑만라이더랑만라이더3 kuukautta sitten
    • Thanks and pleased that you enjoyed the video...

      Tokyo OffroadTokyo Offroad3 kuukautta sitten