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....
@@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
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.
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
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
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!
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 :)
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!!
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.
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
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 ....
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?
@@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
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.
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
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
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 I only said that because I am currently in the middle of rebuilding my 09 RMZ450’s engine right now and cleaning the Carbon off the Piston, Head & Valves are the last thing I need to do before I can put it all back together 🤞🏻
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?
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
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
Is it needed to use a hone for the cylinder when changing piston on a Sxf or other nicasiled cylinder? Or are there something else you can use that you have in your house?
Dirt N Iron thx Will do, did check a bit but not all way! Guess I was one of those lazy ones on the internet today! Haha. Great video and thx again for answering 👌
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?
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
Probably a long shot but doesnt hurt you ask...could I mail them my rmz450 engine and get them to rebuild it? Pay for the rebuild, labor, shipping, rebuild kit, etc this guy knows what he’s doing
oh dear, I was hoping to see kick idle gear removal and instalation as I'm now having issues with it and you skipped it :-| Do you happen to have that piece somewhere else?
@@dirtniron that's a pity. Do you remember if your gear had a shaft pressed into it that rotating inside the case or it has brass insert an it is rotating on an insert that is pressed into case? My issue: thumpertalk.com/forums/topic/1329525-seized-kick-idle-gear/?tab=comments#comment-15449144
No narrating? would like to have heard what the torque settings were, were to position the cams, how many links on the timing chain to line up?..........
Rmz 25O most likely the-same procedure only difference is the sizes? I wanted to buy 2nd hand rmz250 2014 model Id like to rebuild its engine same way you did. My poin it i want to know your exact kit for that haha
Wow! such a skilled confident mechanic
thank you
@@brad5664 NJ
That was really impressive to watch someone who so obviously knows what they're doing...he could do it blindfolded! WOW!!!
Rebuilding my Aprilia sx 50 engine right now and gotta say that four strokes look like hell compared to 2 strokes
yea, couple more bolts on 4stroke ;)
moped gang
I have an aprilia sx 50 as well
Plus a 50cc engine is a bit more simple then a 125 because 50cc doesn't have power valves
Or you’re just dumb
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
Glad you enjoyed it!
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.👍
Welcome aboard Mark, glad you see it that way! btw, you will love dirt biking ;)
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....
Thanks for the Props ....Boss man
yea, Jay is great guy, he really loves dirt bikes and the best part is that his heart is way bigger than his ego ;)
@@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
This video was sick, I know both Jay and Brad and they not only build awesome bikes, but they are great people too.
agree 100%
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.
Right on man! Brad does great work 👍
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
Thanks Aaron, yea they are great! Jay has been great friend since the day we first met.
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
yea, he is very good! @parapros on instagram
The skills this man has is amazing!
Brad is the man!
These videos make me have so much respect for my mechanic... without him I’d be SOL... great job man!
glad you like it Jaiven, Brad knows his stuff!
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!
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 :)
haha, you are funny! Glad you like the videos, appreciate it!
I just got a 2013 rmz250 Sunday I love the bike rips and is easy to get comfortable on
Cool man, congrats!
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!!
Thanks Mackenzie! She might pull little too much now ;)
@@dirtniron maybe but you can just hold on tighter;) lol
Even 4 hours is impressive wow. Master at his craft.. They do seem a bit easier to do compared to a crf. Great video.
thanks man, glad you like it!
Wow!. That looks great. And that guy does great fast work.
yea, he knows his stuff! Thanks
@@dirtniron thanks guys
Awesome video and a great mechanic! Thank you for sharing!
Hey Rado the video came out very good ...this is Brad the one that did the motor...lol
but that was awesome
Hey Brad, good to see you here and glad you like the video! you did great job, thanks again!
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.
@@stacksmasher yes sir ..
just DM me and ill give you info
thyx
@@brad5664 Looks like your account does not allow DM ; (
I'm also interested in a engine rebuild
Cool video Rado. I wish I had them skills.
Brad builds 2-4 engine a week, he is pretty good ;)
This guy is a pro! great video! detailed where it should be.
Thanks for sharing with us Rado :)
thanks Nir! I got new dslr, did you notice the quality was little better? I got canon 80d now
@@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?
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.
Superior technician loving the videos
Brads my mechanic does amazing work!!!
he sure does!
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
A true professional.
Still watching your old builds Rado!
This mechanic Brad you have working on your stuff for you and Jay is awesome. I wish he had a TH-cam channel also
That would be cool! Brad can share a lot of great experience. Thanks for watching bro
Awesome video rado! I'm rebuilding my rmz250 atm, this is like a guide for me now haha
Cool bro, glad it helps ;)
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 ....
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?
@@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
@ 19:00 That's Rado singing. Pretty good!
Haha, i wish ;)
@@dirtniron what is the name of the song???
Nice one Rado! Looking forward to seeing how that bad boy performs.
thanks bro !
Incredible 4 stroke rebuild, everytime you ride one
every other time as long as you do your oil changes often ;)
handy manny ahh hammer i din see a case splitter used this man is a legends
Professional Work :) Very Nice !
Awesome vid rado! Can’t wait to hit cahuilla with ya when this beast is done!
hopefully soon! ;)
Beautiful engine. Very good job🤩🤩
Awesome set of skills. What a talent. 👍🏻
Thank you! Cheers!
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.
yes there are, we followed quite a few. good luck with your project!
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.
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
@@victorcordova8338 yeah that's more like what I'd expect👍
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
@@dirtniron fair enough makes sense.
i always hate putting the timing chain back on :D nice video!
Nice video Rado the perfect video to watch when eating breakfast lol...
What did you have for breakfast? Just curious what is normal breakfast in australia ;)
@@dirtniron Vegemite on toast of course lol...
I had to google it, looks delicious 😉
Nice ! Very good mechanic
thanks bro!
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
cool, glad you found it helpful!
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
Good electric torque wrench 😳
Love the video. Really enjoyed ! A yz450 is coming soon to me
Good job, congratulations 👌.
Must go to sleep but I had to click and the like button. I'll watch it in the morning :P
look forward to hear your feedback! nite~
Great job guys
thanks Martin!
Here in brazil we put these 450 pistons on national motorcycles.generating around 55 hp.surpassing those imported on the tracks
cool!
9:28 why don't you use ice for cooling bearing and easy install them? Or maybe compressed spray air like air duster
we heated the cases and the bearing went right in, no issue at all
got it. just asked about it cuz i am going to do same with my engine soon. thx for video.
@@Aabbcczzxxcc with heating the case the bearings just fall in i was only using a hammer because its HOT but they fall right in
RMZ 250 FOREVER
i just got one too!
Master work.
If i tried to rebuild this, there would be a box of bolts and bearings left over, and it would not run🤣
Great job👍❤
Thanks 👍
great video i want to do that to my 250 some day and hope to learn a lot :)
Tighten those casing bolts opposite to each other
Really wish you would have shown the *carbon cleaning* method, otherwise great video 🤘🏻
We used air buffing tool
@@dirtniron
I only said that because I am currently in the middle of rebuilding my 09 RMZ450’s engine right now and cleaning the Carbon off the Piston, Head & Valves are the last thing I need to do before I can put it all back together 🤞🏻
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?
Everyone who was wondering the song name, it's Love and Fame by Consinity
Great video
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
thanks Mike, lets see what we can do.. but we are mostly 2 wheels guys
@@dirtniron Ive lived in Aussie area
Wish i could do that sucks was looking frord to ridening. I keep you up to date
hey can you say me which tool i need for the flywheel from the ignition m24x1,5 or m28x1.5 Greets from Germany
Skills hammer good tool
Great video! :)
What would cause coolant to come out of the over flo when it warms up?
Very awesome video, can you do a rm250 engine?
I use wrench rabbit kits also. However you skipped out on installing all the other bearings other than the crank?? Why?
i am not sure now.. I think the oem were still pretty good.. dont remember..
Very informative.
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
Glad it was helpful! I went all out so its was little more expensive but i guess you can rebuild it around $1500
Lovely from Tanzania 🇹🇿 would you help me to get some parts like block and Piston kit
I guess the crank just slides into the bearings? I was under impression you needed to used the puller tool.
it depends how well you heat up those bearings..
mR dirt on . what a diferent cam chain timing . between kxf250 and rmz250. .2014
Brad a fuc'n LEGEND !!!!
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
Buy a manual or take pictures with your phone as your taking it apart
Did he check the ring end Gap or did I miss that. maybe lap the valves in or a valve job
yes is did check ring gap it was fast i didnt even see it ...and never lap in ti valves you would ruin them ..
So would Brad be available to do some engine work? Could someone get ahold of him through Jay?
yes, message Brad on Instagram @parapros
Can wait to hear that thing
What songs did you use at the end I can't find them .
sorry man, I dont remember, cant you do the search to find out ?
You don't check run-out on that hot rods crank out of the box?
What's the name of that last song? Good video just did my 2012 rmz 450. Thank you
sorry, dont remember
My ktm 450 has 500 h and 17,000km and never opened the engine :)) i can send it to you:)). great job wit rmz engine!
500h on stock engine is very impressive! good job with the maintenance ;)
Its case bye.little spriot. Can you weld
Is it needed to use a hone for the cylinder when changing piston on a Sxf or other nicasiled cylinder? Or are there something else you can use that you have in your house?
check other comments, Brad (the mechanic) explains what he did... its not really a honing
Dirt N Iron thx Will do, did check a bit but not all way! Guess I was one of those lazy ones on the internet today! Haha. Great video and thx again for answering 👌
He has gold hands !
do you guys have a shop I can send an engine to?
get in touch with @parapros in Instagram, thats Brad who did this engine
Amazing, can you guys come to the east coast to my garage next?
And put on some gloves!!! Lol
let me talk to Jay ;)
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?
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
Jay, looking good
:) he is staying in the shape, riding like 4 days a week, i wish I can ride that much
Probably a long shot but doesnt hurt you ask...could I mail them my rmz450 engine and get them to rebuild it? Pay for the rebuild, labor, shipping, rebuild kit, etc this guy knows what he’s doing
i think that should not be a problem. Get in touch with Brad on Instagram @parapros
Why don't 4-strokes have a small-end bearing?
Really nice slogan! Stay moto vated! Can you offer t-shirt.
Sorry, I found www.dirtniron.com/product-page/dirt-n-iron-moto-shirt
cool bro, and check out this new design as well, Stay motovated is on the back: teespring.com/stores/dirt-n-iron
thanks ! ;)
I have a2017 rmz250 that needs a rebuilt.can you guys do it for me ?
oh dear, I was hoping to see kick idle gear removal and instalation as I'm now having issues with it and you skipped it :-| Do you happen to have that piece somewhere else?
sorry Jakub, I dont think I have that on the video.
@@dirtniron that's a pity. Do you remember if your gear had a shaft pressed into it that rotating inside the case or it has brass insert an it is rotating on an insert that is pressed into case? My issue: thumpertalk.com/forums/topic/1329525-seized-kick-idle-gear/?tab=comments#comment-15449144
What was that part at 6.00 thank you
No narrating? would like to have heard what the torque settings were, were to position the cams, how many links on the timing chain to line up?..........
yea, that would be good.. we did that in our KTM and YZ videos..
Rmz 25O most likely the-same procedure only difference is the sizes? I wanted to buy 2nd hand rmz250 2014 model Id like to rebuild its engine same way you did. My poin it i want to know your exact kit for that haha
should be very similar
Did u skim the head and cylinder block before installing it back?
No, buff and clean
I hope you reply whats the best brand top end kit for a 18 yz450 or should i go oem
Vertex is good, thats what i always use
@@dirtniron thanks
How can I get in touch with brad? I have a 2015 RMZ 450 I want to get rebuilt.
Quick question for you. How many hours do you go before replacing crank on a 450?
Thanks in advance 🙏🙂
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
OK I learned some stuff. My first question is: How much is an engine rebuild? Because I can not do that!