Getting more power out of the KTM 350 EXC-f (CHEAP WAY)
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- Опубликовано: 27 мар 2019
- 2018 KTM EXC-f.
This video applies to any of the 2017-2019 models for both KTM 350 EXC-f and the Husqvarna FE350.
Links to parts used:
Pigtail harness: www.TPStool.com
Intake Tube from Mototerre: www.mototerre.com/product/ktm...
End cap: www.ktmandhusky.com/the-best-...
Do not rely on this video alone. Do your research. 
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Looking forward to the follow up. Just bought exact bike yesterday. Thanks for your efforts.
Just finished the mods with my ‘19 FE 450. And as you said, the power is definitely there. The throttle is much more responsive now. Did my TPS at .72. Rode it around the streets a bit and was doing wheelies in second and third. Can’t wait to get it out to the dirt! Awesome video! Earned a sub.
Sick man! That is what I like to hear. We will be doing a long term review and revisiting soon as well as getting the Husky dialed with the adjuster from tpstool.com Thanks for the sub!
Oregon Dual Sport so an update from me after a couple ride on the dirt and street: the bike has performed amazingly. The power is amazing and can easily get through any obstacle. I had some popping despite the duck tape, but that’s because of a shotty job on my part. I ordered the ball bearing from KTM and husky and haven’t had any problems. Overall, I say it’s a must do for any serious dual sport rider.
I was more impressed with the way you got the bike off the truck 👍🏼
taffyboy07 I thought the exact same thing 😅
I went back and stop the video to play that part about five times
What truck? At no point in this video is a bike loaded or unload from any truck?
Mark Yedlicka 3:40 tf is that then
@@gazmgow622 not sure how the hell I missed that, wish he explained the trick of getting the bike out so easy without a ramp
Very good video, I’ve got a 2017 EXC-F. Blocked the emissions BS, JD tuner, gutted the pipe completely and removed the reeds. Amazing results, I weigh 185 and it pulls me up on 3rd on a good day.
Glock Shooter308 glad to hear it!
When you pulled the reeds did you put something back in it?
You can simply pull the Reed valve piece. I installed an intake tube from ktmhusky.com. The length of the tube can affect air intake. Think velocity stack on your V-8 hot rod.
That little needle that fits into the throttle tube is the IAT Sensor so be careful if you have to remove/install again in the future. You dont want to break the Intake Temp Sensors probe tip off..
Great lil vid guys!
Wow, airbox is a lot different to UK bike. I work on these preparing them before they leave the shop. We take the exhaust tail screen out , also a filter between the tail pipe and front pipe. The airbox does not have reeds just a restriction tube which we also remove making it a straight through to the injection body. UK bike opened up and ready to go ✊🏻
Robbo Robinson Hard Enduro-Media That’s awesome. In the US there are laws that prevent a dealership from hooking the customer up like that. My dealer told me all about it, but couldn’t actually prep the bike like that legally.
@@OregonDualSport you can also replace the air filter cage for the 2-stroke one without the mesh and get a fireproof air filter (just in case) and you'll see major improvement to the bike, specially snap and low end. That's the very first thing I do to all my bikes here in Portugal.
Great video, please let us know after maybe 6 months or so how it works out, thanks.
It's amazing how easy it is to wake up the 350 exc-f engine from stock. If you want to do it even cheaper just take out the two stock muffler end cap screens, it made a big difference in more power, less vibrations and less heat.
Did you still add more fuel to the machine after doing so? Or just run without the screen?
@@OregonDualSport I did adjust the TPS after removing the screens so the bike would run richer. I also did a smog delete but I still have the reed valves in.
@@advsquared Nice! Good call!
Another remark for moto snav: All the exc models need help with the motor, 450 and 500 included. I did mods to my 350 exc, including the vortex ECU. That completely smoothed out the power delivery. Look at a dyno run posted by ktmhusky, and you can see the horrible flat spot down low in the rpm range. Every bike deserves to run well, no matter the displacement!
GREAT Video. Thanks.
FYI, That link for that end cap for some reason does not work. Not sure if it's available or not. If not, is there any other brand that makes the end cap for this bike?
Also, who makes that pigtail wire connector? Link would be great.
Thank you
I have a 2023 500excf, these newer bike have an O2 sensor which communicates with the ecu, so no need for a vortex or anything else. I took the reeds out and opened the exhaust and my bike rips, the O2 sensor automatically calls for more fuel. I paid nothing for 10 extra HP.
Great video. Thanks for the time.
Perfect. That's what I needed )). Thx Bro 👌
Pretty sure u don’t need to put that intake tube in the air box I think it just keeps the air box from collapsing. Does make sense to smooth the flow of air other than the square the air has to flow threw. Another thing my personal preference is I would not crank the tps that high been reading lots of forums and guys say the highest u should go is .64 or .65 other than that your wasting fuel. And with changing that end cap out I think that would need a tuner or new ECM as u can’t just bump the tps up been reading that at WOT the bike leans its self out when making that adjustments. Just something to think about before doing this. I my self bumped the tps to .64 or .65 and removed that mesh screen out the stock end cap made a bit of a difference.
Will this work the same on a 2024 KTM exc-f 350?
nice thanks for posting. test road a 250 excf and a few 2 strokes. I think I might be going with a 350 still dont know yet. such a hard choice!
RideWithWill I recently did a demo day here in Australia and tested the 250 excf, the 300 tpi and the 350 excf and ended up going the 350-definitely haven’t regretted my decision!!
@@50wgpr1 ya man same here! test road the 300 tpi and 350 as well. I really like how easy and predictable the EXCF are! seems like it would be best in technical trail lol
@@RWWRENTAL 250 exc 2 stroke non tpi is best choise
@@scyra9997 Maybe just for your ride style
@@scyra9997 the more I ride 2 strokes the more I want one. tbh they are much more fun than 4 strokes ha ha! I am starting to agree with you!
Do you have any updates on this HP increase? Did you run into any issues or change the TPS again?
Hay mate Where can I get one of those in caps for my exhaust please help can’t find it anywhere
Will getting more power lower the rpm at max speed?
Very good video
the best from austria!!! have fun!!!
So for a 2013 350 excf non of these methods apply? :(
You remove that bike from.the truck like a boss. I'm not sure I will try that but it looked cool
doggie spinning around for his tail? PRICELESS!
Can i adjust tps the same on my 2020
Just opened up my new 250 exc couple weeks ago. Pulled smog, pulled out reeds, pulled exhaust plugs and put on a jd tuner. Very noticeable change!
Wife came out and saw my bike in pieces spread out all over the garage “wth?! It’s brand new!😳” 😆
Anyone’s thoughts on those intake tubes vs just leaving it open? And a new encap vs pulling the plugs?
Lookin forward to better weather and seeing some more ride videos👍
Ps, I’d recommend some radiator guards. Trust me, they are much harder to put on after the rad is bent to poop 😳
@@jasonf7063 Definitely pick up the intake tube, they increase the velocity of the air going into the intake due to the size being smaller and the Mototerre ones have a twist in them which increases that. Leaving it open would affect the velocity of the air and it may not be as responsive as it could be.
Also, the spark arrestor on the stock end cap is massive and still restrictive even with the screen cut out of the tip. The aftermarket tips definitely have more flow to them.
i have an fe501 with a jd tuner and they recomend just pulling reeds and leaving it how it is.
I heard the same thing on my china bike Enduro. She said it's brand new why are you changing exhaust and putting racing carb. Opened air box also by removing some restrictions on the rubber. My 150cc is now at least 2 HP more. You can feel the power increase. New spokes, new o-ring chain and spokits. Went from 10.2 HP to at least 12 HP. It's alot faster now. But girls cannot understand that. I drive a Yamaha for in town riding and with her on the back. She hates how high the china bike is off the ground.
The pro riders here in Sweden drill holes into the airbox cover because of the design of the airbox it creates vacuum it’s choking the bike
Depending on the bike like a 2015 suzuki dr200s that uses a vacuum like you said, when you go up in jetting stages they recommend just taking the lid off :)
It was proved on the dyno that it makes 0 difference.
Killed it bro👍🏾 so your manual tps tuning has held up after doing all this? Hasnt effected the bike negatively?
Thanks! Yes, it has definitely held up. I have no negative things to report after the last few months of use. We will make a long term video on this soon, including the use of TPStool.com's tool instead of the pigtail harness, which is just much more accurate to adjust the TPS than a simple voltage meter.
I opened my 2013 with almost no money, the bike rips. Remove s.a.s plug all emissions adjust tps open up airway and away you go
Nice vid. I am sure you can drill out the end cap and splice the tps for free. however the easiest way to do mods is to just buy parts.
there is a trick i found for TPS tuning here is the link he uses a phone charger and cord for the 5 volt reference voltage. im gunna try tomorrow
forums.rmdra.com/viewtopic.php?t=12067
@@TheTT124564 Top Tip, they have some great ideas, thanks!
can you do this same to exc-f 250 too?
Question. Newb here. I have a 2013 excf and I think by law I need to have that spark arrestor here in Canada to ride the trails. That being said if I removed that alone and that hair/foam material would that help in any way ? Is it worth it or not ?
I wouldn't recommend doing anything to your spark arrestor or packing. It would cause your bike to run lousy unless you did something to control the fuel as well, but even then, I wouldn't take out any of the packing.
The dog chasing his tail😂
What’s the point of the new air box intake? Why not just remove the reeds??
and save 70 bucks
someone started the myth of the intake boot collapsing without the reeds. it's bullshit.
Couldn't you just modify the intake tube vs paying 70 for a 3D-printed part?
Why would you use the intake tube? Is there a difference if I put it in after removing the reed?
They are a waste of $$..
Nice video 😎🚀🚀
How many miles u got on it
What type of helmet is that?
I did the same thing to mine last year, your still gonna be lean as hell, buy a JD tuner minimum if you can't get vortex
The vortex is awesome. Totally linear power curve.
Do you still have your stock end cap? I’d like it for a project I’m doing.
Robert Withers I have a brand new ‘19 XC-f muffler if you’re looking for one by chance? Unless you specifically need just the end cap
11:46 haha doggo being funny
How come the $70.00 airbox insert is round, and the hole square?
Because the throttle body is round would be my guess - Jaren
Assume this same procedure works on a 2017 husq fx 350? I think my bike doesn't have the restricted air box as is, so had me a hair confused.
you don't need this. yours is a race bike, like the XCF, so no restrictions.
@@gophop I've heard adjusting the TPS can help with low RPM flame-outs though.
Thank you for the mention! Quick correction; the bikes 5V is actually very accurate, the person spreading the rumor that it isn't just wants you to buy his more expensive tool. I show an example here, you can check your own bike's 5V the same way: ruclips.net/video/f_FZ2tBDjTY/видео.html
You can also put xcf airbox instead for that stock look
Or put an sx450 factory event bigger intake tight fit but works and had more air flow
Great video. Can you guys do one for the Husqvarna and see what the result is?
We did one on the Husky, results are the same. These bikes share the same motors - Jaren
@@OregonDualSport thanks Jaren. I'll look into it.
In europe excf is a full racebike for enduro... for competioon
Yes indeed.
What years will this mod work with? I Just picked up a 2021
It will not work with a 2021, you’ll want a tuner.
3:43 dude youre like superman, i know theyre light but !!
Awesome 350! I do have a question though, if you want more power why not just buy the 450 or 500 instead? I’m looking to buy soon so just curious the benefit of the 350, thanks!
Good question! The benefit of the 350 is the feeling of the weight. On paper the 450 and 350 are pretty similar in weight, but the difference in how much the piston moves makes the 350 feel significantly lighter than the 450 due to centrifugal force. You'd be surprised at the difference in weight feeling. The 350 almost feels like a 250. The 350 is built to be more powerful than it comes to us in the US, but emission laws prevent that, so all we are doing here is deleting all those additional components that make the bike run at less-than-normal performance.
Oregon Dual Sport thanks for the response! I agree that on paper they are very similar in weight, I trust that they must feel very different and lighter to ride then the bigger 500. I’ve never ridden any bike like this before so I appreciate all the feedback! Favorite place to ride in Oregon?
Moto Snav I so far my favorite place to ride in Oregon is Timber Mountain in Jacksonville OR. Very cool terrain there.
Why shove the 3D printed part in the air box to again restrict flow, why not just remove the reads and be done
I think you can go to the dealer with ECU for a euro system/map/driver idk how to call it
You used to be able to do that, but US dealers wont do that anymore and the new ECUs cannot be flashed from what I understand.
@@OregonDualSport Ohhh ok :/
So I took my 2019 KTM 350 EXCF into a mechanic had them pull all the emissions crap off, put on a FMF muffler thinking that now all I have to do is have it mapped... Wrong the ecu is locked, no one can map it and now I'm screwed with having the bike run lean. A few flame outs, sometimes coughs, and an occasional backfire. I ran race gas 1 gal to 1. Whatever is left and it clears up all the problems. So in other words I'm now left with that choice or I buy the vortex. But I plugged in a buddies Vortex for a min and my kill toggle switch that these bikes come with wont shut off the bike. The key works with turning off but as we all know this is not ideal. The bike runs fine but I personally can not run the bike without my off switch working. Anyone have another fix for this?
@@heatherschaefer820 When you 1st install a Vortex hit the start button and kill switch at the same time with the throttle closed..
Repeat this process with the throttle wide open. This sets the tps. This may fix your problem..
Or your kill switch isn't grounding properly ??
Do you remove all the foam stuff in the exhaust ?
The packing that looks like hair? I cut out a little bit just to be able to fit the new end cap on, but not too much. You definitely want to keep as much as you can. -Alex
Damn America have it rough on their enduro bikes, in the uk they are race ready straight out the dealership
I would say in europe, not only in uk
nice looking dog
The proverbial round block into a square hole.
Don't mess with tps, go with the piggyback tuner from ktmhusky best dualsport channel. Easy to find. They have all the answers or tacomoto channel.
I bought a 2019 350 EXC-F brand new on 4/4/19. I got on the freeway 10 min after leaving the shop, couldnt go over 40. Felt like it was in derate or something very sluggish. Took in back in the truck the following day so im waiting to see what's up. Pretty frustrating to spend primo price and get problems within 10 minutes of riding.
Baffle in the exhaust broke and was causing huge restrictions at varying rpms.
Austin Schweich I had an issue similar. Bought a 2019 350exc on 10/05/19, was very sluggish and lean. Wouldn’t run right and would constantly flame out. Brought it back to the dealer and turns out the fuel pump was bad. It only was putting out 20psi instead of 60. Got it back and it runs perfect now.
They put reeds in a 12 250 sxf???any info
I wonder how severely it would affect fuel economy.
Ev an the answer is not much that we can tell, still over 80 miles to a tank of trail riding usually - Jaren
CAREFUL - louder is not more powerful, it may sound like it, but do not mistake them.
John Quest it’s not mistaken. There’s more power here. Ktmandhusky.com has set up this same mod route on a dyno and pulled out about 10hp extra.
Yeah Oregon!
How much more was the 500 over the 350?
The difference is only about $500 or so - Jaren
yep, just get the ktm 500, cheapest of all upgrade from 350
@@andrewcannon587 That's what l did. 350's are slow as if you come from racing mx bikes. 500's all the way
Loud pipes get legal riding areas shut down.KEEP THE STOCK EXHAUST ON THE BIKE!!!!
Dude is that Bend, Oregon?
;)
@@OregonDualSport One of my top 3 places in the World.
You do one thing at a time, test it, otherwise you don't know what is helping or not...
I wish I watched this video first. I ended up going with Best Dual
sport.
The TPS sensor has nothing to do with adjusting the fuel/air mixture. You need to adjust to timing per ecu flash or controller. Adjust the tps is the same as adjusting the idle adjustment on carb.
No it's not, it adjusts the position at which the ecu "thinks" the throttle plate is, so if you give it 10% more voltage the ecu believes the lie, that throttle is letting 10% more air in so it injects 10% more fuel to compensate but as the throttle is not really letting in more air, it gets 10% richer. These numbers are an example and in reality 10% more voltage may not be 10% more air due to the angle of the throttle plate but you get the idea.
This follows all across the ecu map at all times in a none linear fashion because airflow changes vs. voltage non linearly, depending on throttle angle, which is not ideal, a corrected map would allow for the different volumetric efficiency with less intake and exhaust restriction at higher engine speeds and cam timing etc. A properly corrected map would be richer at the top end as that's when the free breathing is going to have most effect; also you could adjust the ignition timing which would help. All that being said, this mod is no worse than a carburettor which has worked adequately for decades.
should have dyno'd before and after
We would have had to change the title to "Most expensive way" had we done that.
Excf is a race bike
Donpablo007 Franko it’s an enduro bike
Man it kills me seeing people working on dirty bikes, other than that great video.
For a dusty high desert climate I recon the bike is relatively clean hahaha
just by the kit from ktm husky kit is cheap
Did you try it?
I thought the idea of a 350 was to avoid the "over-powering" 450's.
True, you could have just got a 500
the 350 has lower rotating mass, meaning it feels lighter. So if you can squeeze some power out of it, you get the benefit of that power without the rotating mass of a 450 or 500.
@@OregonDualSport If the 350 has less rotating mass, why doesn't it weigh less?
@@scoremxcom There is a difference between rotating mass and overall weight. A larger piston requires a larger counterbalance. Scroll down to number 6 if you want to know more motocrossactionmag.com/ten-things-about-motorcycle-mass-its-effects-on-your-bike/#:~:text=(6)%20Rotating%20mass.&text=The%20spinning%2Dtop%20analogy%20can,the%20bike%20is%20leaned%20over.
TPS is not a method of tuning!!! That end cap is the only thing that's not a gimmick. You could of just modded the factory exhaust end cap and bought a JD tuner and spent the same money and made more power. But hey Ive only done 4 of them...
rlloft84 I know there are better ways to do this, but I’m definitely not complaining about the extra power I’m getting out of this now... fuel/air ratio in a safe range through all rpms.
Countless good results from tuning the TPS; the testimonials at TPSTool.com are real, and the link on that same page will take you to the thread on ThumperTalk where you can see even more good results. Google around, lots and lots of happy riders after TPS adjustment, all over the world.
Might be 4 5 or 6 volts 😂😂 hell no this is inaccurate by 0.05volts or so or more but definitely not a volt
Ha, you're right. You get the idea though.
he was talking about TPS supply voltage, not the output from TPS
@@gophop the input is directly proportional to the output after you factor in the resistance of the potentiometer ...... the input on a 350 excf is 5.0v exactly not 6 not 4 .... the output voltage is between 0,5 to 4,6 depending on the setting
190 dollars for an end cap, gtfo. You can buy the cheaper fmf exhaust for a little more
Best mod is buy a 500 . Tips adjust and in about 2 hours the spark arrestor will fall out. Done. 350s are so slow compared to the 500. Oh and ktm sells a plug for the 450sx to block off the emission crap coming off the cylinder head.
Snowblower
Ahh no the reads are not there for any of your reasons and your nest bet is to throw that with your money in the garbage. And then do some research before your next . video. Maybe you’ll figure a few things that are actually true
10 hp yeah right.....
Ummm🤔 buy a 500???? Lol
500 is cool for more open areas where you can really let it rip, but the 350 is superior in tight and technical trails.
I would agree I own a 500 and was thinking of getting a 350 for that very reason but on paper there’s only a 3 pound difference I guess I really need to try one
@@FATBIKEMIKE the weight difference on paper is small, but how it actually feels to ride is much different. Has more to do with the forces the larger motor creates that make it feel less nimble. But yeah man, you should definitely try one and see!