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How to rebuild 4 stroke engine on a dirt bike - RMZ450 build 

Dirt N Iron
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16 июл 2024

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Комментарии : 346   
@miliconngrin
@miliconngrin 5 лет назад
Wow! such a skilled confident mechanic
@brad5664
@brad5664 5 лет назад
thank you
@silasbryant1111
@silasbryant1111 3 года назад
@@brad5664 NJ
@outlaw7x77
@outlaw7x77 5 лет назад
That was really impressive to watch someone who so obviously knows what they're doing...he could do it blindfolded! WOW!!!
@69peterpumpkineater
@69peterpumpkineater 4 года назад
Thanks for this video guys, great job all-round! Watching Brad at work is time well spent for sure, he knows his stuff.
@dirtniron
@dirtniron 4 года назад
he sure does! more videos with him coming soon
@haitzyice
@haitzyice 2 года назад
@@dirtniron does he have a business to allow people to send engine to him for rebuild?
@aaronzaitz5676
@aaronzaitz5676 5 лет назад
Awesome vid rado i think its great that J and brad are such talented mechanics willing to teach you everything u need to know when it comes to your bikes I love it man keep it up
@dirtniron
@dirtniron 5 лет назад
Thanks Aaron, yea they are great! Jay has been great friend since the day we first met.
@rosscollier3992
@rosscollier3992 4 года назад
Loved this video, really interesting as someone who is wanting to learn more about the 4 stroke engine! The guy who did it is so talented! Cheers guys
@dirtniron
@dirtniron 4 года назад
Glad you enjoyed it!
@timbaggett9825
@timbaggett9825 5 лет назад
This video was sick, I know both Jay and Brad and they not only build awesome bikes, but they are great people too.
@dirtniron
@dirtniron 5 лет назад
agree 100%
@jjmckay6man1
@jjmckay6man1 5 лет назад
Awesome video and a great mechanic! Thank you for sharing!
@emils6734
@emils6734 5 лет назад
Rebuilding my Aprilia sx 50 engine right now and gotta say that four strokes look like hell compared to 2 strokes
@dirtniron
@dirtniron 5 лет назад
yea, couple more bolts on 4stroke ;)
@IntroCreatorKyan
@IntroCreatorKyan 5 лет назад
moped gang
@joshua8362
@joshua8362 5 лет назад
I have an aprilia sx 50 as well
@gulag_dt
@gulag_dt 4 года назад
Plus a 50cc engine is a bit more simple then a 125 because 50cc doesn't have power valves
@perth7930
@perth7930 4 года назад
Or you’re just dumb
@dylangatzka2699
@dylangatzka2699 5 лет назад
I just got a 2013 rmz250 Sunday I love the bike rips and is easy to get comfortable on
@dirtniron
@dirtniron 5 лет назад
Cool man, congrats!
@stevenl8687
@stevenl8687 Год назад
The skills this man has is amazing!
@dirtniron
@dirtniron Год назад
Brad is the man!
@brianpalma8491
@brianpalma8491 5 лет назад
Beautiful engine. Very good job🤩🤩
@jaivenm1973
@jaivenm1973 4 года назад
These videos make me have so much respect for my mechanic... without him I’d be SOL... great job man!
@dirtniron
@dirtniron 4 года назад
glad you like it Jaiven, Brad knows his stuff!
@danshealthylifestyle8443
@danshealthylifestyle8443 4 года назад
man this Mechanic is a beast. can tell he's old school for sure he doesn't even use those tusk tool for anything. Man I'm impressed thanks for the video
@dirtniron
@dirtniron 4 года назад
yea, he is very good! @parapros on instagram
@timopenttinen3020
@timopenttinen3020 5 лет назад
Professional Work :) Very Nice !
@beni8978
@beni8978 5 лет назад
Love the video. Really enjoyed ! A yz450 is coming soon to me
@owl1873
@owl1873 3 года назад
Im a nuby to the dirt bike world but it has become apparent me that I have stumbled upon some legitimate content here. Feeling Blessed.👍
@dirtniron
@dirtniron 3 года назад
Welcome aboard Mark, glad you see it that way! btw, you will love dirt biking ;)
@Magillasgarage
@Magillasgarage 5 лет назад
Wow!. That looks great. And that guy does great fast work.
@dirtniron
@dirtniron 5 лет назад
yea, he knows his stuff! Thanks
@brad5664
@brad5664 5 лет назад
@@dirtniron thanks guys
@NirHason
@NirHason 5 лет назад
This guy is a pro! great video! detailed where it should be. Thanks for sharing with us Rado :)
@dirtniron
@dirtniron 5 лет назад
thanks Nir! I got new dslr, did you notice the quality was little better? I got canon 80d now
@NirHason
@NirHason 5 лет назад
@@dirtniron I didn't really, the quality is awesome though. The thing that really gives a better quality is the lens ;) What mic was used?
@dirtniron
@dirtniron 5 лет назад
i used external Rode shotgun (micro) but it might not be all the way in.. I noticed late.. so I am not really sure if it was built in camera mic or my external. I am using same STM lense as with t5i, it is sharper now and autofocus works much better too.
@shiresquinton46
@shiresquinton46 5 лет назад
Nice one Rado! Looking forward to seeing how that bad boy performs.
@dirtniron
@dirtniron 5 лет назад
thanks bro !
@G0R4Nn
@G0R4Nn 5 лет назад
Awesome video rado! I'm rebuilding my rmz250 atm, this is like a guide for me now haha
@dirtniron
@dirtniron 5 лет назад
Cool bro, glad it helps ;)
@derrickfauber9633
@derrickfauber9633 4 года назад
Awesome set of skills. What a talent. 👍🏻
@dirtniron
@dirtniron 4 года назад
Thank you! Cheers!
@zardportugal
@zardportugal 5 лет назад
Master work.
@OBSBryce
@OBSBryce 5 лет назад
Awesome vid rado! Can’t wait to hit cahuilla with ya when this beast is done!
@dirtniron
@dirtniron 5 лет назад
hopefully soon! ;)
@cryptoinvertor
@cryptoinvertor 5 лет назад
great video i want to do that to my 250 some day and hope to learn a lot :)
@Mackenzie.Grant95
@Mackenzie.Grant95 5 лет назад
Great job Rado! The RMZ engine looks really good with low wear for 120+ hours.... That diesel engine oil you use seems to do a excellent job! regardless these guys did a great job on your motor! should pull very strong!!
@dirtniron
@dirtniron 5 лет назад
Thanks Mackenzie! She might pull little too much now ;)
@Mackenzie.Grant95
@Mackenzie.Grant95 5 лет назад
@@dirtniron maybe but you can just hold on tighter;) lol
@mildaudiophile3879
@mildaudiophile3879 5 лет назад
Can wait to hear that thing
@alexsgarage01
@alexsgarage01 5 лет назад
Great video
@brokebikemtb4448
@brokebikemtb4448 5 лет назад
Rado your very fortunate to have jay as a friend he is a legend....that motors value just went up about 2k because brad built it at jay clarks house.....brad was right at home doing this.....you can tell he knows a thing or two about a thing or two.....while us amateurs study manuals ...brad is who we one day aspire to be....
@brad5664
@brad5664 5 лет назад
Thanks for the Props ....Boss man
@dirtniron
@dirtniron 5 лет назад
yea, Jay is great guy, he really loves dirt bikes and the best part is that his heart is way bigger than his ego ;)
@brokebikemtb4448
@brokebikemtb4448 5 лет назад
@@dirtniron thats awesome of you to say..looking forward to the 450 vids keep up the great work...i been watching since you first got the old warehouse...take care man
@twentyhundred3481
@twentyhundred3481 3 года назад
Currently stripping my 13 rmz450 down to send out to this guy. Saw him all over your page and had to give him a shout when she finally quit on me after 200 + hours of supermoto riding.
@dirtniron
@dirtniron 3 года назад
Right on man! Brad does great work 👍
@tomatoknuckles
@tomatoknuckles 4 года назад
Even 4 hours is impressive wow. Master at his craft.. They do seem a bit easier to do compared to a crf. Great video.
@dirtniron
@dirtniron 4 года назад
thanks man, glad you like it!
@vacancyforlife
@vacancyforlife Год назад
A true professional.
@philipstach5948
@philipstach5948 5 лет назад
i always hate putting the timing chain back on :D nice video!
@martinruiz7475
@martinruiz7475 4 года назад
Great job guys
@dirtniron
@dirtniron 4 года назад
thanks Martin!
@nicown1337
@nicown1337 5 лет назад
Nice ! Very good mechanic
@dirtniron
@dirtniron 5 лет назад
thanks bro!
@harleyloco1853
@harleyloco1853 Год назад
Superior technician loving the videos
@spartan0722
@spartan0722 6 месяцев назад
These time lapse vids are really awesome! So many ch can be learned in a short period of time! You dudes brighten my day every time I watch Dirt and Iron! Stay Moto Vated!!! Do y’all sell t shirts? lol! Thanks again!
@spartan0722
@spartan0722 6 месяцев назад
Yes, and shout to Dirt Bike TV as well! I want to be you guys when I grow up! Though I’m 51 so I guess I’m already grown up, lol! I still want to be like you guys when I grow up though :)
@dirtniron
@dirtniron 6 месяцев назад
haha, you are funny! Glad you like the videos, appreciate it!
@Wide000
@Wide000 5 лет назад
Great video! :)
@ZygmuntKiliszewski
@ZygmuntKiliszewski Год назад
Good job, congratulations 👌.
@benjibanks7894
@benjibanks7894 5 лет назад
Cool video Rado. I wish I had them skills.
@dirtniron
@dirtniron 5 лет назад
Brad builds 2-4 engine a week, he is pretty good ;)
@stantheman5005
@stantheman5005 4 года назад
Skills hammer good tool
@jcs480able
@jcs480able 2 года назад
Very informative.
@KincadePavich
@KincadePavich 4 года назад
Are there no torque specifications for most of these bolts? Awesome video. I've got an opportunity at a really cheap '07 RMZ450 with a seized motor. I've never rebuilt a 4 stroke, but I'm motivated to try.
@dirtniron
@dirtniron 4 года назад
yes there are, we followed quite a few. good luck with your project!
@BrokenSprocket
@BrokenSprocket 5 лет назад
Nice video Rado the perfect video to watch when eating breakfast lol...
@dirtniron
@dirtniron 5 лет назад
What did you have for breakfast? Just curious what is normal breakfast in australia ;)
@BrokenSprocket
@BrokenSprocket 5 лет назад
@@dirtniron Vegemite on toast of course lol...
@dirtniron
@dirtniron 5 лет назад
I had to google it, looks delicious 😉
@andriss1234
@andriss1234 5 лет назад
great video
@ghostfromdeadmenatseawilli2248
@ghostfromdeadmenatseawilli2248 4 года назад
Wish i could do that sucks was looking frord to ridening. I keep you up to date
@goproguy1512
@goproguy1512 4 года назад
Brads my mechanic does amazing work!!!
@dirtniron
@dirtniron 4 года назад
he sure does!
@mikejuce
@mikejuce 3 года назад
Where is he based out of? I’m in Fresno and after seeing his work I would like to use his service. Someone who actually knows what he’s doing and seemingly cares about the build. Awesome
@bencetullner1964
@bencetullner1964 4 года назад
Awesome build! I have 2013 rmz 250 and I want to remove the judder spring from the stock clutch, but its not clear to me how should i do it. Should I remove the judder spring, judder spring washer and the smaller friction plate and add a normal friction plate?
@3dwezzy740
@3dwezzy740 23 дня назад
handy manny ahh hammer i din see a case splitter used this man is a legends
@yourselfdotcom
@yourselfdotcom 4 года назад
I am currently doing this exact engine and kit. This video serves as a great reference. Would love to pick that guys brain building it. Clearly not his first rodeo. Hahahaha
@dirtniron
@dirtniron 4 года назад
cool, glad you found it helpful!
@utahenduro4808
@utahenduro4808 4 года назад
Incredible 4 stroke rebuild, everytime you ride one
@dirtniron
@dirtniron 4 года назад
every other time as long as you do your oil changes often ;)
@williamv.z9706
@williamv.z9706 5 лет назад
Love 4 strokes yep
@talon0863
@talon0863 5 лет назад
@ 19:00 That's Rado singing. Pretty good!
@dirtniron
@dirtniron 5 лет назад
Haha, i wish ;)
@rabiit1973306
@rabiit1973306 5 лет назад
@@dirtniron what is the name of the song???
@NirHason
@NirHason 5 лет назад
Must go to sleep but I had to click and the like button. I'll watch it in the morning :P
@dirtniron
@dirtniron 5 лет назад
look forward to hear your feedback! nite~
@jokuvaan6202
@jokuvaan6202 5 лет назад
Nice build! Im early this Time 😀
@wallyf4291
@wallyf4291 5 лет назад
Excelent jobs
@reaptheheat5853
@reaptheheat5853 5 лет назад
Jay, looking good
@dirtniron
@dirtniron 5 лет назад
:) he is staying in the shape, riding like 4 days a week, i wish I can ride that much
@austinjoppa9142
@austinjoppa9142 3 года назад
Very awesome video, can you do a rm250 engine?
@Marvelfunfaqs
@Marvelfunfaqs 5 лет назад
Amazing, can you guys come to the east coast to my garage next? And put on some gloves!!! Lol
@dirtniron
@dirtniron 5 лет назад
let me talk to Jay ;)
@PHATT13_DADDY
@PHATT13_DADDY 3 года назад
Love the video great bunch of information for noobs like me wondering what a rough price for all the required parts cost you in the end
@dirtniron
@dirtniron 3 года назад
Glad it was helpful! I went all out so its was little more expensive but i guess you can rebuild it around $1500
@Bee-fr7zk
@Bee-fr7zk 12 дней назад
I was rebuilding my engine today slapped the top piece where those arms go up and down but it won’t turn over unless it’s off
@brad5664
@brad5664 5 лет назад
Hey Rado the video came out very good ...this is Brad the one that did the motor...lol but that was awesome
@dirtniron
@dirtniron 5 лет назад
Hey Brad, good to see you here and glad you like the video! you did great job, thanks again!
@stacksmasher
@stacksmasher 5 лет назад
Hello Brad! Awesome video, do you rebuild engines for the public? I am at about 120hrs on my 2016 450X and am looking to have it rebuilt.
@brad5664
@brad5664 5 лет назад
@@stacksmasher yes sir .. just DM me and ill give you info thyx
@stacksmasher
@stacksmasher 5 лет назад
@@brad5664 Looks like your account does not allow DM ; (
@gusthebus2542
@gusthebus2542 4 года назад
I'm also interested in a engine rebuild
@jmgonzales5878
@jmgonzales5878 4 года назад
😮😮wow nice
@Wathappn2u
@Wathappn2u 2 года назад
What would cause coolant to come out of the over flo when it warms up?
@stevemcevoy6185
@stevemcevoy6185 5 лет назад
Tighten those casing bolts opposite to each other
@riderrm2505
@riderrm2505 5 лет назад
Nice👍
@dennywild2490
@dennywild2490 Год назад
hey can you say me which tool i need for the flywheel from the ignition m24x1,5 or m28x1.5 Greets from Germany
@kinglucci5352
@kinglucci5352 2 года назад
Brad a fuc'n LEGEND !!!!
@mikelwmc
@mikelwmc 5 лет назад
You don't check run-out on that hot rods crank out of the box?
@brad5664
@brad5664 5 лет назад
well since so many people are asking about the cylinder hone we did the hone is called a Brush Hone It's perfect for deburring and deglazing engine cylinder walls its made just for Nikasil cylinders ....
@davidjo997
@davidjo997 5 лет назад
Hey Brad quick question, whats your opinion on the idea thst this type of hone ruins the thin niksil coating? About to put my first top end on my 19 250 xc with 100 hours, cross hatching should be fine, would you recommend honing anyway to ensure proper ring seating?
@brad5664
@brad5664 5 лет назад
@@davidjo997 ya if you have hone thats made for nikasil if not you can use green scotch bright pad and contact cleaner ..you want to get the carbon build up and deglazing the cylinder that will for sure help with new ring seating
@webmasterguru7799
@webmasterguru7799 4 года назад
If i tried to rebuild this, there would be a box of bolts and bearings left over, and it would not run🤣 Great job👍❤
@dirtniron
@dirtniron 4 года назад
Thanks 👍
@chrisreed2755
@chrisreed2755 4 года назад
Good electric torque wrench 😳
@Amateurs2Roues
@Amateurs2Roues 5 лет назад
He has gold hands !
@beovoznyuk5820
@beovoznyuk5820 3 года назад
What's the name of that last song? Good video just did my 2012 rmz 450. Thank you
@dirtniron
@dirtniron 3 года назад
sorry, dont remember
@rodneyodgaard5094
@rodneyodgaard5094 5 лет назад
Noice, noice, weddy noice :-D
@brandonfontaine285
@brandonfontaine285 Месяц назад
Everyone who was wondering the song name, it's Love and Fame by Consinity
@hencetirta7633
@hencetirta7633 3 года назад
mR dirt on . what a diferent cam chain timing . between kxf250 and rmz250. .2014
@ghostfromdeadmenatseawilli2248
@ghostfromdeadmenatseawilli2248 4 года назад
Its case bye.little spriot. Can you weld
@jamesmasanja1963
@jamesmasanja1963 2 года назад
Lovely from Tanzania 🇹🇿 would you help me to get some parts like block and Piston kit
@arjaycorpuz9070
@arjaycorpuz9070 5 лет назад
❤Awesome😍
@TommyElmz
@TommyElmz 4 года назад
What was that part at 6.00 thank you
@wallefersouza4180
@wallefersouza4180 4 года назад
Here in brazil we put these 450 pistons on national motorcycles.generating around 55 hp.surpassing those imported on the tracks
@dirtniron
@dirtniron 4 года назад
cool!
@mikescarl5384
@mikescarl5384 5 месяцев назад
I have a2017 rmz250 that needs a rebuilt.can you guys do it for me ?
@josefranciscoperniasanchez7824
@josefranciscoperniasanchez7824 4 года назад
RMZ 250 FOREVER
@dirtniron
@dirtniron 4 года назад
i just got one too!
@jasond5387
@jasond5387 Год назад
Does anyone know the valve clearances?
@elcontrastador
@elcontrastador 5 лет назад
How much would the labor on something like this cost? Parts estimate? Also, can you expect a power increase from the new piston (same compression? mass?)? Would this be a got time to do any polishing/head work?
@dirtniron
@dirtniron 5 лет назад
I used stock compression piston, no porting or polishing, still it should run better than before, the engine was little tired, specially the clutch and I am also getting hotcams and full fmf system, I am expecting some power gains for sure
@TS50ER
@TS50ER 4 года назад
Why don't 4-strokes have a small-end bearing?
@MollyDogsm
@MollyDogsm 5 лет назад
I can't help but think 120 hours requiring a full top and bottom rebuild is crazy. I'd be doing one every 3 months.
@victorcordova8338
@victorcordova8338 5 лет назад
Chicken Mac i have a 2015 yz250f with 316hrs. I’ve only put one top end in and replaced all valves w/ adjustments. I ride and race enduro, still going strong
@MollyDogsm
@MollyDogsm 5 лет назад
@@victorcordova8338 yeah that's more like what I'd expect👍
@dirtniron
@dirtniron 5 лет назад
it was still in decent shape, it would run longer for sure. Clutch was in worst shape but the top and bottom could do more. But since I am doing this build on the channel, it was a good time to go thru everything
@MollyDogsm
@MollyDogsm 5 лет назад
@@dirtniron fair enough makes sense.
@DisruptiveUnicorn98k
@DisruptiveUnicorn98k 3 года назад
What songs did you use at the end I can't find them .
@dirtniron
@dirtniron 3 года назад
sorry man, I dont remember, cant you do the search to find out ?
@kcfox3130
@kcfox3130 4 года назад
wish you could find a video that explains it all on how to do, hard to follow this one especially when trying to line bits up & were every thing goes in correctly
@qschool1
@qschool1 4 года назад
Buy a manual or take pictures with your phone as your taking it apart
@Sergio-ih6lk
@Sergio-ih6lk 5 лет назад
Did he check the ring end Gap or did I miss that. maybe lap the valves in or a valve job
@brad5664
@brad5664 5 лет назад
yes is did check ring gap it was fast i didnt even see it ...and never lap in ti valves you would ruin them ..
@michaelosullivan8288
@michaelosullivan8288 4 года назад
That is sick and wish raptor 250 if you guys can try work out on Yamaha raptor 250 that be awesome to see next time if someone asked you if can rebuild some of 2 wheelers/quad that be nice to help out to look after the engines
@dirtniron
@dirtniron 4 года назад
thanks Mike, lets see what we can do.. but we are mostly 2 wheels guys
@michaelosullivan8288
@michaelosullivan8288 4 года назад
@@dirtniron Ive lived in Aussie area
@bijornful
@bijornful 2 года назад
How can I get in touch with brad? I have a 2015 RMZ 450 I want to get rebuilt.
@frankiewilson45
@frankiewilson45 Год назад
What’s the song at 20 minutes
@steadfastjack277
@steadfastjack277 4 года назад
Quick question for you. How many hours do you go before replacing crank on a 450? Thanks in advance 🙏🙂
@dirtniron
@dirtniron 4 года назад
hmm.. i did mine on 120h, but it would be able to stay for more.. maybe 150-200.. depends.. but its better to do it before the damage happens
@soraaoixxthebluesky
@soraaoixxthebluesky 5 лет назад
Did u skim the head and cylinder block before installing it back?
@dirtniron
@dirtniron 5 лет назад
No, buff and clean
@zilvani5142
@zilvani5142 3 года назад
Ok i just thought that you where gonna teach us) :
@jasonblankenagel5412
@jasonblankenagel5412 5 лет назад
Did it drive anyone else just a little nuts to see bolts put back in with cross patterns?
@andriss1234
@andriss1234 5 лет назад
Really nice slogan! Stay moto vated! Can you offer t-shirt.
@andriss1234
@andriss1234 5 лет назад
Sorry, I found www.dirtniron.com/product-page/dirt-n-iron-moto-shirt
@dirtniron
@dirtniron 5 лет назад
cool bro, and check out this new design as well, Stay motovated is on the back: teespring.com/stores/dirt-n-iron thanks ! ;)
@mxcollin95
@mxcollin95 Год назад
So would Brad be available to do some engine work? Could someone get ahold of him through Jay?
@dirtniron
@dirtniron Год назад
yes, message Brad on Instagram @parapros
@TrippyBlue25
@TrippyBlue25 4 года назад
How do you keep track of the bolts and screws
@dirtniron
@dirtniron 4 года назад
ziplock bags and marker
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