KTM 125SX BIKE BUILD | This bike is a bad unit!

[@joshknight129]

This series helped me out so much rebuilding my 2003 125 sx and honestly don’t know if I could’ve rebuilt my bike without it so huge shoutout! Turned out amazing!

[@DanMX2112]

Thanks Josh, I really appreciate the shout out! Glad you could benefit, that’s the ultimate goal. Stay tuned for the next build my friend!

[@brandong9714]

The ironic part is that I also was rebuilding a 03 sx125 around the time the videos were coming out…. Can’t even tell you how much the engine videos helped out haha

[@DanMX2112]

The engine really isn’t terrible, it’s simpler than I had expected.

[@2183valerio]

Just got one too!!!

[@DanMX2112]

Let’s go!!! You’ll love the bike!

[@keirhamilton5397]

Had 2 of them,those 04 had big power for a 125 and pretty reliable,suspension was the let down ,put kayaba sss forks on the second one,amazing

[@DanMX2112]

Yeah, the PDS is a major drawback. But this little bike absolutely ripped it up!

[@goochland8563]

It's a beautiful bike love the old ✌strokes 😮😮

[@DanMX2112]

Thanks, the bike turned out insane!

[@adetandfriend4105]

My dream old ktm 😍😍😍

[@DanMX2112]

Thanks, it was a good build and a killer looking bike!

[@freetaylor72]

Wow! Bike looks amazing bro! Thanks for the videos man I bet that little 125 is a beast!

[@SurfRinseRepeat]

Where did you buy the ignition cover?

[@DanMX2112]

It’s the OEM replacement, they discontinued the old magnesium cover. Got it at RMATVMC. Thanks for watching!

[@simplyletteredstudio210]

A lot of hard work! Love to see the finished bike🔥🔥🔥

[@DanMX2112]

Thanks babe, you’ve seen it all!!!

[@brandontucker9188]

Great build brother! the bike turned out amazing!

[@DanMX2112]

Thanks Bro, now let’s do you one 😉

[@payydd9764]

been waiting for this. she’s amazing!

[@DanMX2112]

Thanks man, I sure love how it turned out!!!

[@Keegan_Lynch]

I just bought a pretty clean blown up 04, found out it was wiseco’s test bike that they sold to a friend of mine. Do a full overhaul of mine as well!

[@DanMX2112]

Nice, they really are awesome east bikes to work on. I was very impressed.

[@dusty275]

Looks awesome man! I’m getting my old 2006 125sx running after sitting for a while so your videos are super helpful!

[@DanMX2112]

Thanks man, I’m sure you’ll be ripping soon. They really are awesome bikes!

[@jmcpacheco]

Really awesome! Good job! :)

[@DanMX2112]

Thank you sir!!!

[@gereksmuin3951]

It looks so good! Good work buddy!

[@DanMX2112]

Thanks Gerek, It really turned out awesome!

[@warwein6506]

Awesome build, I really like your camera and editing work, keep it up

[@DanMX2112]

Thanks man, I appreciate it!

[@dfisher4768]

Best thing is that I have a 2003 Ktm 125 with original top end and the bike has never been raced. Just needs some TLC and top end should be changed before it blows. Couldn’t have asked for a better instruction module for anything I now need to change on my bike.

[@DanMX2112]

Thanks Fisher, I hope the videos are a useful guide and help you along, that’s the goal. Sweet bike, and the possibilities are endless!

[@timsideris9338]

Awesome!! Loved all the videos help me rebuild my 02 125sx

[@DanMX2112]

Thanks man, I’m so grateful the hard work is helping others!

[@brainstain22]

Freakin' awesome bike man. Thinking about building a ktm next.

[@DanMX2112]

Thanks Brian, it turned out to be a fun one for sure. I loved this build and am excited for the next one!

[@rairtylindsor9129]

Looks amazing good job

[@DanMX2112]

Thank you!

[@chasenorman7827]

Holy cow it looks incredible!!!!....absolutely killer job ,I can really appreciate the work put in and the time taken to get it to this stage !

[@DanMX2112]

It took tons of work, but I’m all about it. Thanks for the kind words Chase, I do love this bike!

[@remymorgan5931]

Any updates on your 450 you motivated me to take my 03 yz450f and the motors in the shop I just had to get a new right case a jug an trans and a wrench rabbit kit. I bought my bike a year ago the guy told me that I needed a new clutch and that the top end was replaced only to have a catastrophic failure my mechanic said that my crankshaft bolt wasn’t torqued properly and there was play and when she made her revolution she punched a whole in my jug and the broken piece did a number internally and it’s been a journey ever since very stressful but I been able to keep pushing and thankful for my old man for being there for me during this process. but my bike if I were able to post a pic the bike I got has a lot of life left in her and isn’t clapped out or anything but I just wanna thank you and I enjoy your content and hope you get some sponsors and more support from the community . Keep doin what you do brother 🤙

[@DanMX2112]

Thanks man, and sorry to hear about your bad luck. These motors are delicate but bullet proof if built right. Wish I had something current for you to follow but I don’t on the 450. Near future yes, but not currently. Thanks for watching and let me know if you get her back and up rippin!

[@remymorgan5931]

@@DanMX2112 I sure will I’ll dm you the progress of the state she’s in and where I’m at the motor will be back in a few weeks as soon as my engine builder gets all the parts and will definitely be back up in no time . Send it brother 🤙

[@DanMX2112]

Take care man!

[@brianlewis5359]

came out beautiful I have been following this build since I have the same bike. I rebuilt mine but not in that detail. Excellent job Dan

[@DanMX2112]

Thanks Brian, and thanks for following the build, I really appreciate it.

[@5thheldrightout]

great edit

[@DanMX2112]

Thank you sir!

[@Whatshouldicallit660]

Awesome build dude!!! What year plastics/rear end plastics are you running and where you able to fit them directly on to the Frame?

[@DanMX2112]

@@Whatshouldicallit660 it’s the 04 plastics, Polisport, nothing special. Thanks for the love man.

[@Whatshouldicallit660]

@@DanMX2112 thank you for your fast answer! Greetings from Germany!

[@mircomoschen8398]

Hi Daniel, this is such an amazing build! I suggest putting on it '07 rear plastics, airbox and seat to add just a bit of spice to the build! The PC pipe isn't making any difference in sound from the OEM one. (I have a 125exc which has the same engine). For the sound you should go with a PC/fmf or hgs silencer, it really depends on how you like the sound to be: PC and fmf will make it scream, hgs gives it more of a crisp sound. If you want to do some engine mods, you should look for the EU version of 2K-3 ignition system with his ECU. (Sorry for my bad english)

[@DanMX2112]

Sweet, thanks for the input, and like I said in the video it was a budget build for sure. I wasn’t even going to go with a new pipe, but the OEM was garbage, cracked and bent up. Pipes do make a sound change, but the silencer ultimately had the flare for sure. I had a factory fatty fmf on my yz250 and a shorty silencer, but it was dull with the shorty till I threw the fatty on and it pops much more. I loved fmf, but they treated me horrible over their mistake on a pipe build. Kinda got a bad taste lol I didn’t know that about the ignition, so this is good to know. Thanks For the input, I love it!!!

[@CLOUD.P.-once]

Do you need a 07 sub frame for 07 air box? The 07 seat slides good onto oem tank?

[@claytonfenton4349]

Good looking bike. Your attention to detail is pretty amazing.

[@DanMX2112]

Thanks Clay, you’ve seen my OCD 😂

[@claytonfenton4349]

True that bro ! But it’s a good thing

[@kingkong81icloud]

I would make it all black or swap the front mud Guard to black

[@DanMX2112]

Almost did all black, but a little orange is sick.

[@adams.9277]

Very nice build! Who is the band playing the music on the first half of the video?

[@DanMX2112]

I’m not sure on the music, I downloaded it with rights like 2 years ago lol thanks for watching though I appreciate it Adam!

[@soggysaggz1628]

thinking about buying my first ktm and searched the bike im looking at and this was my first video about them and im glad it was. bike was definitely eye candy for mostly stock! ha

[@DanMX2112]

Dude it really is! This bike is so clean for the few upgrades it has. Thanks for the love!

[@soggysaggz1628]

@@DanMX2112 just got home with the bike.. took it down the road and it blew up. kicker is stuck but bike is in neutral.

[@DanMX2112]

Oh snap, that’s not good. Rebuild is n order for sure!

[@soggysaggz1628]

@@DanMX2112 ill be watching all your videos you have on sx motor rebuild and i thank you for that!

[@DanMX2112]

You got it dude! Good luck and can’t wait till you get to rip it!

[@HERESPILOT]

Great video. Where did you get your frame gaurds from? Im rebuilding a 2003 ktm 125 sx and my top engine mounting brackets have snapped do you know anywhere i can order a replacement set thanks

[@DanMX2112]

I got them from Rocky Mountain ATV MC here in Utah. Go check out their OEM selections and you will probably find what you need.

[@laferrari2201]

How did you get it to run so healthy? Like you hear some of these bikes and you can tell they lack power or something, but this sounds great and you can tell its gunna run great.

[@DanMX2112]

It actually was running to rich in this video. Go watch the ride video and you’ll see how it ran. I jetted it leaner afterwards and she ran like a raped ape!

[@natepearce6088]

Is this a 03 model where did you get that back fender graphics from I want to make mine look like this!!!

[@DanMX2112]

It’s an 04 and I got the graphics from 180 decals.

[@deaddove5909]

Do you have a hidden kill switch or do you just stall it everytime?

[@DanMX2112]

It’s on the front brake.

[@markalan4026]

Man, this thing turned out very nice, well done!!.. Hey, does yours have good bottom end torque? I have the exact bike, same year too.. Mine is a dog down low, you really notice it when taking off slowly in the sand. You gotta wind her out a bit to get going, but once you hit mid to high RPM the bike pulls hard with excellent torque. Engine has a new top-end, jetting is good. I replaced the power valve control arm down behind the clutch cover, the one that has the finger which rides in the power valve timer/governor. If you haven't already (assuming you did however) make sure to check yours, it's a common wear item most people overlook. There were flat spots worn into the small finger on mine, which resulted in excessive play in the powervalve assembly, causing the flapper to flop around (basically staying opened) at low RPM when it should've been completely closed. Anyway, replacing this part made a huge difference, but it's still not where I know it should be with bottom-end power. I did notice after replacing the control arm, the freeplay is ALMOST gone now, but not entirely, and it looks like I may need to replace something else within the powervalve train. Anyways, appreciate the cool videos! I'd like to see that bike in action, if you do a riding video, that would be awesome.

[@DanMX2112]

Thanks for the love. Also, I haven’t ridden it yet so we will find out soon! Stay tuned for the video. Mine is in great shape with no wear at all, so I shouldn’t have that issue. Also, I haven’t tuned in the power valve yet to see the difference, but will see.

[@ninty1designs60]

Such a clean bike! I’d be afraid to ride it haha

[@DanMX2112]

Lol 😂 I am, but maybe I have already lol

[@medicalmischief1]

i've been looking at oils to buy by the gallon for my bike and ive read so many mixed reviews about using "car" oil in bikes.... can i get your opinion on the shell rotella t4 you had in the video? i have a rmz450 and a yzf450, if 4 stroke changes anything. the issue with using "car" oil seems to be with the clutches being soaked in the motor oil.

[@DanMX2112]

Where the issue comes in is when you use a motor oil with friction modifiers. Most synthetics now days come with them, it preserves bearing life and makes the surfaces slicker, of that makes sense. That being said, a wet clutch, that we run in dirt bikes, can’t work with friction modifiers. The Rotella T4 is a high detergent oil with no friction modifiers. High detergent helps keep parts clean and sludge free. It’s diesel oil, and is some of the best oil in the market for what we need in our bikes, at a bargain of a deal too. There is no such thing as “car oil”. You can run yamalube in a car just fine for 100,000 miles and never have issues if you use the correct weight. Oil is not equal, but, we change it every 4 hours, so why run synthetic without modifiers, and why run expensive oil at all? I’ve ran Rotella in my 2 stroke and 4 stroke bikes for almost 12 years now and never seen negative effects. I also run it in my lawn mower, tiller, anything with a motor in my possession, other than my cars that use a synthetic blend. Hope this helps, and honestly, go watch my top end rebuild video all the way through and you’ll see how clean my motor is after 3 years and 130 hours.

[@luisvasquez2706]

🔥🔥🔥

[@johnharding2912]

Well done.

[@DanMX2112]

Thanks John, it’s a beast!

[@johnharding2912]

Mines getting there now, engine done working on the forks. I wonder could you share where you got the graphics, I like the design a lot!

[@DanMX2112]

Sure, I got them from 180 Decals. Go check them out, I’m loving the look!

[@johnharding2912]

@@DanMX2112 thanks will do

[@Austin_30-06]

Would this be a good race bike for a 14 year old with experience I'm looking to get into racing

[@DanMX2112]

Ya it would be a good bike for a 250 class. The 125’s can race in a 250 4Stroke class, as the power is comparable. A 250 4 stroke has a better power band but is much heavier and going to be more expensive to maintain:

[@mxgp33]

I have a 2004 KTM125 I grew up racing. I was 14 years old when I last raced it back in 2007. It would be perfect.

[@DanMX2112]

Most of my friends kids are riding 125’s at 12-16 and they are perfect bikes for them. Can’t go wrong!

[@landinmcelheny9585]

where is the graphic kit from?

[@DanMX2112]

180 Decals! Go check them out!

[@michaelbeckett9222]

How much are you selling for if you don't mind me asking? I have a 2003 I might be selling and I need to have a price for it. So mainly what I am asking is how much a rebuilt bike goes for.

[@DanMX2112]

I’m trying to get $5500 for mine. Total frame up rebuild. We will see what I get. Mines a new bike through and through, so I think it depends on that.

[@michaelbeckett9222]

@@DanMX2112 yeah, mine I have rebuilt the engine and shocks, new tires and graphics so I'll probably try to get 3,500 for mine. I only paid 500 for it.

[@DanMX2112]

That’s a great return for sure! You should get that for it!

[@alanporter2769]

What exhaust have you got on it I want to buy it for mine?

[@alanporter2769]

I can't find anything on PC pipes

[@DanMX2112]

Pro Circuit exhaust, also known as PC. Hope this gets you what your looking for! Thanks for watching!

[@alanporter2769]

@@DanMX2112 do you remember what pipe you got I can't find one that looks like it'll fit?

[@DanMX2112]

It’s the works pipe. 04 KTM 125SX. Hard to find.

[@alanporter2769]

@@DanMX2112 thanks a lot found it

[@alun1531]

Link for graphics please

[@DanMX2112]

Search 180Decals.com

[@dmo6696]

Where are the graphics from?

[@DanMX2112]

180 Decals, they killed it on the graphics kit!

[@dmo6696]

@@DanMX2112 your choices are absolutely stunning. I got an 03 525sx 4 stroke I’m rebuilding right now and I couldn’t help but admire the beauty of a machine you’ve put together. +1 subscriber, keep up the good content!

[@alun1531]

@@DanMX2112 do they have a product code For that kit please

[@kingkong81icloud]

I never liked them I would rather have a good old Yamaha DT125R or 200 , reliable af , I had 4 , I liked them better than my YZ 250 , I prefer Enduro , a nice KDX would do it for me , i was doing this stuff in 1998 before internet I have had about 20 bikes , I wish I just kept them all

[@DanMX2112]

Me as well, I would have a killer bike collection right now! Thanks for watching brother!

[@hymiemary9204]

🏃 pr໐๓໐Ş๓