Installing the KTM SXS 300 Kit

Turning your 250 KTM into a 300 is simple and easy, just takes a little money!
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[@kjohns236]

Just ordered my 300 kit today for my SX! Can’t wait to tear into the upgrade!

[@highlandcycles]

So good

[@Drewski423]

I’ve learned a ton from you just from watching your videos. You go into a lot better detail than other people.

[@highlandcycles]

Thank you so much for watching and the kind words.

[@Drewski423]

highlandcycles no problem. I like how you actually show things and explain the little tricks and tips. Not many people want others to know all their little tricks. Keep it up man I stay watching your videos.

[@highlandcycles]

@@Drewski423 Thanks so much

[@dennislieder6178]

Thanks for posting, will be doing an upgrade on my 250 soon

[@troydowler3581]

Done top end rebuild on my 2017 EXC 300 watching your videos. Very informative thanks!

[@highlandcycles]

Awesome. Thanks

[@user-sp8eb6iz7f]

Do one thing at a time. The cylinder upgrade check it out, then the new pipe. A pipe will also change the jetting.

[@legowolf22]

I had to go with the TC250 holdover got a smoking deal. After riding it this summer I think I would enjoy the 300 kit more since I ride most low-mid on the trails

[@highlandcycles]

Patty McDude you’d love it. Really makes the bike easier to ride in the tight stuff but still zings when you need it

[@painsrides3616]

These vids are so interesting to watch 👍... I learn much, even though I don't own a KTM or even a 2T for that matter .. lol

[@highlandcycles]

Stoked to hear that

[@P4ddyC4ke]

Great video, Morgan! It's super interesting to watch the "behind the scenes" of what happens in the shop. On another note... "Angry" Zach Sheets showing his true colors in the background at 6:52 just bashing on things with a hammer!

[@highlandcycles]

Totally, I am glad you caught that. He acts so nice when people are there but now you know the #TRUTH

[@Drewski423]

I’m sure you know by now, but I’m so glad I bought the 300 over the 250. So much more grunt and that’s awesome in the slower stuff. Great motors.

[@highlandcycles]

I like them both. The grunt is great on the 300 and the zip is fun on the 250.

[@Drewski423]

highlandcycles yeah I agree. I do like the snap of the 250, but since I bought my 300xc tpi I am spoiled with grunt lol. Still really like my 250x tho. I’ve ridden some sort of woods set up yz250 since I was 14. So the last 18 years I’ve had a blue bike as well. Idk that I can let that go.

[@highlandcycles]

@@Drewski423 Don't let the YZ go!!!

[@Drewski423]

highlandcycles NEVER lol!!! Yamaha has been all I’ve known from age 14 to 32. Literally bought the new KTM a couple weeks ago. So in 18 years I think this one makes 6 blue bikes. 5 or 6.

[@gordonstimmel4590]

I'm excited for that electric start video for the 07 Yamaha I own a 05 that has fox racing suspension an a wr transmission to put in it still it still in parts though a brand new w r 4 stroke transmission an a 300 kit also

[@highlandcycles]

Awesome!!

[@ericc90]

Love your content! Wish your shop was in Vegas, I'd be using you for all my rebuilds!

[@highlandcycles]

Thanks so much

[@barryhanenburg3833]

Morgan, really informative. Best part - it's your own bike so we know you need it to be reliable. Hope the snow doesn't impact the Death March. Also - what kind of mini-cycle is hanging from the ceiling? It kind of looks like it's got a Hodaka motor in it.

[@highlandcycles]

Thanks. The snow will only help the Death March be more gnar. That is a custom chassis with an old Indian 50 in it. It has a great story behind it. It’s in one of the older Shlogs

[@TheSprigga]

Damn good job Morgan! Keep it up!

[@highlandcycles]

TheSprigga thanks a ton

[@lakedweller6572]

mine came with all the powervalves installed!

[@highlandcycles]

Nice

[@tylerhenson2793]

Love this vids man. Earned a new subscriber for sure 🤙

[@highlandcycles]

Thank you so much.

[@Drewski423]

It’ll start

[@highlandcycles]

Thanks for the confidence

[@briandugan698]

Start!!!!

[@highlandcycles]

YEAH!!!

[@xetecgravity]

Made in Austria - greetings from Austria!

[@highlandcycles]

Hey!! How’s it going?

[@xetecgravity]

highlandcycles thank you fine! Great Channel! Let‘s Ride Dirtbikes!!!

[@rztrzt]

Bore and stroke for 300cc 2Ts are usually 72mm x 72mm

[@highlandcycles]

mips yeah. I could have looked it up on the piston but it was funnier to just say that. Thanks for the info.

[@rztrzt]

@@highlandcycles 300cc is the only one I know as all the manufacturers like, beta/gasgas/sherco/tm/ktm/husky, are the same square bore 72mm

[@giterdun1864]

Hey Morgan , thanks for fixing my "tube" flat on short notice when i was up vacationing last August with Chad and Colleen! I broke my flange on 2014 250 xcw. do i need a whole new cylinder? all those flange guards say they're for 2017 and up. I need one next time. if i find a 300 kit, i hope i can find a guard for one. I tend to slam rocks alot.

[@highlandcycles]

You don't need a whole new cylinder, just the flange. I know that people used to make those protectors for the older cylinders and they really aren't that different. I would imagine that one of the newer ones would fit your bike. I might need a little modification but not much.

[@bloomerb4162]

Supposedly the ignitions are the same and the heads are different in sx vs the woods version of kit. I don't know which version I got.

[@richardhartley7094]

Good common sence tip on the base gasket thickness👍🇬🇧

[@highlandcycles]

Thanks. People are too anal.

[@austinnipper6371]

I am placing my order for a 300 kit for my 2014 250 sx. Your video made me want to pull the trigger on it. I am also ordering new chain and sprockets. Can you give me your thoughts on Sprocket sizing with the 300 so i will have a good starting spot? Apricate all the content you put out.

[@highlandcycles]

I like either 13/50 or 14/52

[@briandugan698]

Do you have a vlog going through a Honda 1984 XL350R carburetor rebuild or set up??

[@highlandcycles]

brian Dugan I don’t.

[@shinyribs2178]

She sounds grunty! Good stuff, man! I mean, it ain't no RFS, buy hey.... 😉😉

[@highlandcycles]

shinyribs thanks. 🤣😂

[@TheRossillini]

Nice video buddy

[@highlandcycles]

Thanks

[@kidsir7410]

Ive recently broken my flange and its on a 2005 250.they don't make cylinders or flanges for that year anymore😢 Considering a conversion. Hopefully it's not too old to convert

[@highlandcycles]

I’m not sure but I bet you could find a cylinder on EBay and have Millennium plate it

[@Seweruz]

Do you think there is any difference bewtween the sxs 300 cylinder and a basic exc 300 cylinder? Besides the sxs ECU.

[@highlandcycles]

No, the cylinders are the same.

[@shamvalencia8419]

Where did u get the kit? Will this fit on my 99 KTM 250sx

[@highlandcycles]

From KTM and unfortunately not

[@carlosdasilva5112]

What is the part number for the head and cdi box?

[@highlandcycles]

Dang I don’t know. I threw those boxes away a while ago.

[@carlosdasilva5112]

@@highlandcycles no worries. I have the KTM 300 2017 xcw with the mikuni and JD jetting and was hoping the sx head would work.

[@highlandcycles]

@@carlosdasilva5112 not the 250 one. I would recommend an RK Tek head

[@TheRossillini]

Where you at in Idaho?

[@highlandcycles]

We are in Colorado. We were on a trip in Idaho when it blew up

[@TheRossillini]

@@highlandcycles bummer, that’ll ruin a trip. We get a lot of guys from Colorado riding this way. One time I met a couple guys from Colorado and took them on some local trails and they said it was the best riding they’ve ever been on.

[@highlandcycles]

@@TheRossillini I love Idaho riding! We come up there once a year now.

[@TheRossillini]

@@highlandcycles if you come to south east Idaho I’ll take you on some bad ass single track.

[@highlandcycles]

@@TheRossillini awesome!

[@scottreimer6513]

So did I miss somewhere your thoughts of the results and performance difference? I have a 2017 and want to do the same thing but want to make sure its worth the investment.

[@highlandcycles]

I did talk about it in a few other vids but the basic idea is that yeah, I LOVE IT! I am not sure I would spend the money on it if I didn't blow up the 250. If all the 250 needed was a piston I would probably just do a top end

[@237racing3]

Cross hatch?

[@highlandcycles]

237 Racing Hahahaha. It’s already in there from the factory. Wonder how they do that?🤣😂

[@senor7857]

You did almost nothing with the dremel to be honest... Check Mitch Payton's jobs

[@highlandcycles]

señor oh i know. I have spent many hours going to town on cylinders and I honestly just don’t know enough to really change stuff without maybe messing it up. I just like to clean stuff up and match up the flange to make them flow a little better. I have seen some amazing port jobs that definitely make way more power.

[@NRS_7]

Furthermore, the knife edge is actually robbing flow/power..

[@ethanmarlow2630]

If you can deal with the sound of a compressor, you can’t work on bikes either.

[@highlandcycles]

Wow! I do hate the compressor but I don't have a good place to put it outside of the shop and its not my building. I disagree about my ability to work on bikes. I think we do a pretty good job.

[@ethanmarlow2630]

highlandcycles oh jeez man that wasn’t at you. I totally understand why you don’t like it on the camera. Your an excellent mechanic!! Love the content you bring here too!