Get most power out of your offroad dirt bike - Yamaha WR450 de-restriction, free mods

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Off-road dirt bikes come choked from the factory, in this video we gonna talk about the ways to open them up and get full potential of your dirt bike. I am working on WR450 explaining free mods and jetting. Doing following things will get you uncorked yamaha wr450 or wr250 which will feel very similar to YZ450f.
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wr450 uncorking
wr450f free mods

Пікірлер: 107

@earl6969 2 жыл бұрын

I ran the grey wire to a switch on the bars. If I need it,it's there. If I don't...the little blue light stays on. Great for low and slow timing.

@zzxx33mh 6 жыл бұрын

WR series are hardcore enduro bike..despite the model its still shine and run smoth,specially with nice graphic and some mods.. Blue rules..

@jasondennis230dennis2 6 жыл бұрын

a nother awesome video my bike had the bathal out wen i bot it and it sounds awesome bro.

@vaneater2734 6 жыл бұрын

Great vid man super informational.

@dirtniron 6 жыл бұрын

thanks dude!

@jaceperez4281 6 жыл бұрын

I love your videos keep up the good work

@dirtniron 6 жыл бұрын

thanks bro!

@markwood9691 4 жыл бұрын

Im doing all these mods too, your bike is exactly like mine...its so convenient and your how to videos are so precise.

@dirtniron 4 жыл бұрын

cool Mark, glad you find it helpful. Your bike backfires and runs rough.. clean the carb could be dirty pilot jet, maybe its too lean. Get JD kit for the bike, its runs great .

@markwood9691 4 жыл бұрын

Dirt N Iron the carb is new, just ordered the JD kit today, hoping it fixes the backfiring, has FMF muffler, about to do air-box mod...grey wire and throttle stop finished today.

@dirtniron 4 жыл бұрын

Mark W thanks for the order Mark! I am confident it will run great. Get in touch with me once you have it on the bike. I had to run richer needle to get the best performance.

@BrokenSprocket 6 жыл бұрын

Great video. I had to do the some things to my RMX450Z.

@dirtniron 6 жыл бұрын

How did it feel after the mods, big increase?

@BrokenSprocket 6 жыл бұрын

Yes big increase it makes the hole bike feel different and lighter.

@kiwi-moto 6 жыл бұрын

Hey Dirt'n Iron, thanks for explaining these mods! For anyone wondering, these mods are applicable on the *older* model WR's. From 2015 onwards the WR250F engine is based on the YZ engine, and one of the best mods I've heard is to replace the ECU with a new programmable one from GTYR and change out the throttle stop screw. This apparently will really open up the WR ! Oh, I just saw you have t-shirts! nice! What size are you wearing? Trying to gauge the sizes :) thanks!

@dirtniron 6 жыл бұрын

yes for fuel injection the best is to get new ECU thats somewhat equivalent to good jetting. I am wearing L

@therealslimshady4555 6 жыл бұрын

Brilliant free mods 🤛

@dirtniron 6 жыл бұрын

cool!

@SkeletonGuy22 4 жыл бұрын

Butler got a 06 wr450, looking forward to doing these mods🔥

@dirtniron 4 жыл бұрын

You will love it!

@KodyK22 3 жыл бұрын

Nice I want to do this to mine 2011 I just picked up! I’ll probably need to re jet it tho, also maybe just a slip on and see how that goes!

@dirtniron 3 жыл бұрын

JD jetting will make a big difference, plus slip on and free mods and you are set

@albertvanniekerk8906 3 жыл бұрын

Going to buy a wr450 tomorrow! 07 model with 11000 miles!

@dirtniron 3 жыл бұрын

good luck man, great bike

@chris929rr7 5 жыл бұрын

I went from an old YZ250 to a brand new WR450 and I hated it! Then I did the grey wire mod along with a White bros slipon and the airbox cut out mod and now its a beast. Scary fast! I didn't even need to rejet seeing as these run rich from the factory. I hear you can also use the YZ450 exhaust cam to give more power too. Has anyone done that yet?

@dirtniron 5 жыл бұрын

thanks for sharing Chris, yea I heard that the cam will wake it up even more

@NirHason 6 жыл бұрын

Great informative video Rado! :) Do you know if these modes (except from the carb mod) are relevant to the EFI models?

@dirtniron 6 жыл бұрын

yes Nir, air box mod, exhaust and throttle stop apply to EFI models as well

@NirHason 6 жыл бұрын

Now that's great news for WRF owners

@elliotbarron4913 4 жыл бұрын

Is it just wr or does it apply to my 2012 yz450f efi bike

@Mackenzie.Grant95 6 жыл бұрын

Awesome video! I’m always tempted to do this to my bike but I’m worried about compromising long turn reliability? Do you think it would ? Shirts look great! I’m definitely going to order one!!

@dirtniron 6 жыл бұрын

Thanks bro! I think it should be ok, as long as you stay on the top of maintenance you should be fine.

@Mackenzie.Grant95 6 жыл бұрын

Dirt N Iron thanks Rado! KLX might get an exhaust @ JD jet kit!

@dirtniron 6 жыл бұрын

right on Mackenzie!

@Megamalt3 3 жыл бұрын

Can all of these Mods can be done to my 2003 WR450F aswell? Love the way you explain things keep up!!

@dirtniron 3 жыл бұрын

thanks mate, yes all the mods can be done to 2003 as well.

@Megamalt3 3 жыл бұрын

@@dirtniron thank you for the quick answer !

@outdoormayhem7456 6 жыл бұрын

Hey dirt n iron If you don’t do the jetting will it be lean enough to do damage to the bike?

@divergent2619 5 жыл бұрын

Great videos... I just got a 2003 wr450. I need to check if any of these mods have been done. What JD jetting kit did you get? jdy001? What size barb fuel filter did you show in video?

@dirtniron 5 жыл бұрын

I have that jd kit listed on my website, dirtniron.com not sure about the fuel filter size..

@kylelaurent3293 4 жыл бұрын

I’m getting a 2001 WR250F later this weekend and was wondering could I do the same mods? Also I know nothing really about rebuilding or upgrading dirt bikes

@maidoargel4252 6 жыл бұрын

The shirts are cool, but when the stickers come? Of course, for the dirt bike.

@dirtniron 6 жыл бұрын

thanks Maido, I am thinking about it.. hopefully soon

@ironwolph 6 жыл бұрын

When you're doing the mods go a little more in-depth on the O-ring mod around the accelerator pump also could you put a link to that exact jet kit I need it for my 04 WR thank you

@dirtniron 6 жыл бұрын

yes I will do that, thanks for suggestion. email me on dirtniron7@gmail.com i will send the link

@fatssam 4 жыл бұрын

Good video I have 2017 WR450F I installed Yamaha GYTR Competition ECU Do I need to cut the gray wire or it won't make a difference Wish you can respond

@dirtniron 4 жыл бұрын

dont cut the wires on new models WR, you got new ECU, thats all you need

@Eastern_SA 4 жыл бұрын

Dirt N Iron is removing the wire on 2018 WR450F good enough with replacing the ECU?

@ThinderPlayz 4 жыл бұрын

I have a 03 wr 450 f, thanks very much for these vids! is that a 04?

@dirtniron 4 жыл бұрын

Yes its 2004, great bikes! Hope the videos will help. Take care

@michaelharris4651 3 жыл бұрын

Me got me an 03 all I did was change the standard pipe and cut out the air box , good enough for me , awsome machine👍

@mecanicadetodo494 11 ай бұрын

Ayuda amigo tengo un problema con mi moto es wr 250 año 2012 no me acelera a fondo acelera pero no acelera bien al maximo nose si fue xq la calibre y deje mal el tiempo me parecen un buen mecanico aki en mi pais no ai muchos o casi nada ayuda

@smokemagnet Жыл бұрын

what is the service intervals for this bike? thank you

@ginosonniebishop-browne5327 5 жыл бұрын

Hi I’ve lost a rubber pipe of the top of a metal pipe on the side of the engine on my wr450f it now blows air out of it and sounds as though there is no exhaust on it could you please tell me what it is thanks

@oliverkoler7224 5 ай бұрын

Is this the same for an Yamaha Wr from europe some people in forums say that there are differenzes to the USA model

@triumphtriumphant7352 5 жыл бұрын

bro any idea how to get lights on my 07 yz250f?could you do a video on stators?

@dirtniron 5 жыл бұрын

do some research, find out if wr has the same stator, if not get the one from wr it should be same fit but high output

@triumphtriumphant7352 5 жыл бұрын

iv done it its 01 wr250f and with some mods ,anyways il figure it out,believe me im not the no research type im the one verify everything with research and experience and fact type.anyways back to reading on stators and circuits!i will make my own damn stator if i have to have done half on stators and ignition cdi reading already etc .yz side cover is thinner as well!anyways bro awesome sounding these yz and wr uncorkedand tuned.

@user-pu6pr4ww7x 7 ай бұрын

does the free mods without the comp ECU cause overheating wr450f 2022?

@SnipingWithSkillz 6 жыл бұрын

I have wr 450 2004, with 48 pilot and my idle screw wants around 3 turns out, the pilot is already big, when on idle i push hotstart to see how good it revs but its not as strong as it should, what i can i do? Needle and main dont have much effect for idle, i still have snorkel in airbox if i take it out it will be even leaner than now

@dirtniron 6 жыл бұрын

yes the snorkel will allow more air in, hence leaner mixture. I would make sure that pilot circuit is clean, I had that happen before, my pilot jet was little dirty and the bike was running lean bc of that. Next try to raise the needle one clip, it will let more fuel in and it will become little richer. Also dont forget that cold humid air (winter air) is causing our bikes to run leaner

@renedelafuente123 9 ай бұрын

Would these modifications go for the 2012 wr450f dirtbike? Asking this cause you mentioned carberator but mine is fuel injected. Thanks any feedback appreciated

@dirtniron 9 ай бұрын

no, you need gytr ECU for 2012 and newer, you can remove throttle stop and open up the airbox but there is no grey wire or carb tuning mod

@Aabbcczzxxcc 5 жыл бұрын

i have question for you. i have heard that fuel filter is not recommendet on carburetor engine - because when you have full tank - pressure good and everythink good, but when you have 1\4 or about it fuel tank amount - not enought pressure for carburatore and engine start strangling. Is it true - do you have this filter on your own wr450 ? Thank you.

@dirtniron 5 жыл бұрын

I never had any issue on my wr450, should be ok

@Aabbcczzxxcc 5 жыл бұрын

@@dirtniron thank you for quick response) I'll try it

@michaelharris4651 3 жыл бұрын

Just filter the fuel before filling up the tank as I do , and no smoking 🚭

@plaid13 6 жыл бұрын

You really need to say what year the bike is and what years these things apply to.

@dirtniron 6 жыл бұрын

mine is 2004, these things apply to all years. Majority of years come with AIS system which I dont have on mine, GYTR is selling removal kit for around $150. EFI bikes also have most of these restrictions. There is plenty of details online. hope that helps

@mrhalish 4 жыл бұрын

I thought removing the baffle of an exhaust made it louder but reduces backpressure, lowing power slightly? maybe I am wrong?

@dirtniron 4 жыл бұрын

it was chocking the engine, it breathes and runs better with open exhaust

@mrhalish 4 жыл бұрын

@@dirtniron ok, thanks for the reply :)

@sireuc 5 жыл бұрын

What if I get a lectron carburettor ! Or smart carburettor instead of messing about with the Jets

@dirtniron 5 жыл бұрын

yea you can do that, no jets there. Those carbs run really well, I got lectron on my ktm 300

@sireuc 5 жыл бұрын

@@dirtniron I ended up buying a JD jetting kit Lectrons are way to expensive hahah I also purchased a K&N performance air filter Gonna do the grey wire mod and throttle stop mod and jets all at once Will let you know how she goes '(

@RedEmpire36 4 жыл бұрын

Just in case anyone else reads this, I would stay away from the lectron for a 4 stroke as there is no accelerator pump, they are more intended for 2 stroke applications. The FCR carb is a great carb once properly jetted.

@xterrential 6 жыл бұрын

Do you have kids sizes? Or can I buy an iron on for a kids shirt? I just picked up a suzuki jr 50 for my kids and they LOVE to ride, especially my youngest. One of his first words was "ride".

@dirtniron 6 жыл бұрын

thats so cute! ;) "ride" I got small and medium size for kids

@timfagan816 6 жыл бұрын

Xterrential make sure you put oil in the oil tank under the seat.

@xterrential 6 жыл бұрын

Yah. As well as the gear box. Too bad the last owner didnt know about that. I changed the trans oil when I brought it home and it SHOULD have had 450 ml of oil but when we drained it there may have been a few tablespoons at most.

@timfagan816 6 жыл бұрын

Xterrential that's pretty silly!! Had one in at work on Friday, to fix. The owner hasn't been mixing oil in the oil tank. He'd been running it for 4 years on just petrol, cos he didn't even know it was a 2 stroke. Haha.

@xterrential 6 жыл бұрын

That is a true testament to the durability of japanese engines.

@silverbackanimal7215 2 жыл бұрын

More fuel and more air any way possible = power

@atkracing 4 жыл бұрын

Are these mods also for 2008 Yamaha Wr250f

@dirtniron 4 жыл бұрын

yes I think so, all carbureted WRs

@Nenad.S 11 ай бұрын

does this apply for wr250x? please answer

@dirtniron 11 ай бұрын

I am not aware, but this is in US market only

@vaneater2734 6 жыл бұрын

“Restricting the power.” I don’t like that phrase. Wish my bike would start right now everything is all mud and would be perfect to make a mess.

@lazn9863 5 жыл бұрын

if it aint'broke dont fix it

@akathecanadian 6 жыл бұрын

I know, just wait. My tShirt is in the wash

@dirtniron 6 жыл бұрын

patiently waiting ;)

@nicowillemse1336 4 жыл бұрын

BHP of the wr450??????

@dirtniron 4 жыл бұрын

not sure, around 50 i guess

@Bilkkis 6 жыл бұрын

are you Bulgarian ?

@dirtniron 6 жыл бұрын

i am from Slovakia

@Bilkkis 6 жыл бұрын

cuz your name is rado and rado is short form for Radoslav and yeah ... but you are still from the balkan sooo :D :D :D :D

@dirtniron 6 жыл бұрын

Yes, I am Radoslav. In Slovakia we also have Radovan and Radomir, they are all called Rado. Actually my country is not part of Balkan. We are in the middle of Europe. Former Czechoslovakia. Close enough though ;)

@Bilkkis 6 жыл бұрын

ayeee ... yeah i have problem with slovenia and slovakia i switch their place ... :D :D :D

@dirtniron 6 жыл бұрын

yea, it happens often ;)

@bigronwaggles404 4 жыл бұрын

My bike came with these so called good mods, my bike runs great now after I closed up the air box. opening up the air box makes your bike run too lean. If you are an expert at carbs and have a lot of time and money open the air box. If you are an average guy ans want more power do everything this guy says but DON'T cut the air box!!!

@dirtniron 4 жыл бұрын

cut the airbox and jet your carb, you dont need to be an expert. get JD jetting kit for $80 and follow my video, its simple and the gains are great.. you can do it without the JD kit too, just go with bigger pilot and main jets, jetting is not that difficult even for average guy.. trust me

@bigronwaggles404 4 жыл бұрын

@@dirtniron Good to hear from you!! I'm your biggest fan and I'm glad you have such great knowledge. please keep helping us guys that need so much help. You Rock Buddy!! I'll get back to you after I binge watch your video and rejet my bike.

@mworld 4 жыл бұрын

Don't 'California' my bike to start with. In Australia we don't get all that restriction junk.

@dirtniron 4 жыл бұрын

yes, Australia and Europe are different..

@kylelaurent3293 4 жыл бұрын

I’m getting a 2001 WR250F later this weekend and was wondering could I do the same mods? Also I know nothing really about rebuilding or upgrading dirt bikes

@dirtniron 4 жыл бұрын

some of them you can.. do some research first.. 2001 was one of first years i think so something could be different

@kylelaurent3293 4 жыл бұрын

Dirt N Iron For sure!