top notch mechanic for sure, but as a machinist I'll give you a small tip. when lapping/sanding surfaces that you want to be as flat as possible its best to use a figure 8 pattern when sanding.

Awesome work! Your skills and hard work are pretty amazing... And not only on your bike, the quality of the video & editing is on top. You really deserve a much bigger audience. Keep the good work. Love from 🇦🇷

I like it man. Building my 08 yz250f right now so your video was a big help. Powdercoat is awesome. I blasted my entire case, all my master cylinders, pretty much everything I could, but im going to try Cerakote for the first time on this build. Keep up the good work man

Thank you bud, this is a fantastic video for me since i am rebuilding the same engine at this time :) Cheers!

Freeze the bearings and heat up the case and they will just drop right in no pressing required

Put the bearings in the freezer 24 hours beforehand the will drop right into the cases.

Where's the video if it running after the rebuild?

Very good !....thx !

I just rebuild the engine on my 04 Yamaha Kodiak and later on like about 4 days later it slipped timing and bent the valve my fault tho I had the chance to replace the chain and I was wrong on my call but I learned my lesson

Great work Tristan and nice to see tools are expanding

Such a Nice and awesome rebuild, , love it... Planning also to rebuild my 03 yz250f bike.

Awesome video! Straight forward and to the point! Helped a lot.

Muito obrigado,sou do Brasil,fis o motor da minha wr250 f vendo seus vídeos;✊✊✊✌️

Great video man! Thanks for posting 🤙

Great job man and again that lovely accent 😄

Amazing I wish I had your skills. Unfortunately I’m going to have to pay a guy.

You are an excellent bike mechanic,you have been blessed with amazing talent

Awesome vid and edits and filming and bikes

I have the same engine, when for a reconstruction of those?

may you pliz teach me on line am a biker but i prefer doing mechanics plz

Great job, mate!

You're a legend man 👏

man, you know your shit around these bikes! As an experienced mechanic, which motocross bike would you say has lowest running costs and best reliability in long term perspective?

Literally best step by step I’ve ever seen on building a bike engine👌🏽👌🏽

How much did it cost for all that?

Wow so many small parts. I haven't ventured into any engine stuff yet :)

Thanks for the video! I have rebuilt 2-strokes but wanted an idea on how to set timing and such as I am considering getting a 250f. Thanks for the confidence boost! Now, If i buy a 250f, I'm more confident in rebuilding it!

Nice, but you didn’t check valve clearances?

excellent work

You deserve more subs

Where can I find new circlip rings. That I know are right for my yz250f????

How many dowel pins are on the case halfs

You do awesome work I’m rebuilding my yz250f do you have a rebuild video in real Time Mike

Wft happened to the Yamaha Virago Cafe Racer build??? I subscribed initially to see it finished ✅ where is it?

i wish i had the skills to do this. my engine siezed a few years back had to send to a mechanic who took 1200 bucks for it

does it matter what i lube the cams and buckets with, I was going to put some royal purple 10w30 on them

I reinstalled the transmission but first gear need some help to pass but all the other gears work like a charm! I want to know if I need to do something before closing the case

What is bearing number code at 1:46? I ordered that bearing with same code what was an old bearing but new is so small on that bearing hole. 6204RUED is number what i got

Do you have an idea why the crank seized? Could it be just bad maintenance or is there something wrong with these yzf engines? I've seen many cases where this same exact happens that the crank seizes like this and im worried for mine now :D.

I have a us 250 that need work. How would you like to work on it

Allahumma shalli 'alaa sayyidinaa muhammad wa'alaa aali sayyidinaa muhammad wasallim tasliima😁😊 Yok Tobat Kawan Dan Jangan Lupa Sholat Dan Sholawat😊😁

A minha wr 250 está laquiando o vira brequim

how to the piston rings have to be , like each gap away from each other ?

Nice job I love that powder coat. Can you tell me what brand/model that is?

What is the plug to the right or the top of the motor?

i really liked the video even tho i enjoy more of the asmr content i really liked yours

Awesome video brother. Where can i get all the tools that you use

There’s no video showing it complete obviously it locked up or failed.

It an Art I love those dying out

What is the powder coat color called?

What color is the powder coat

Buenas, tengo una yz125 1991,pero no tengo repuestos para la valbula de poder, el cilindro puede ser remplazado por el de alguna version mas nueva? asludos!

Buen video

Great video Man! I'm currently rebuilding my 2007 Yamaha Yz250f engine, so this video has helped a lot! Keep up the good work!

What happen if I don’t install the clutch spring plate and seatp plate ? I don’t have those either

Would you know the diameter and grade of the stopper bolt under starter?

I take same job my -05 Yamaha

No I'm located in Florida

Hi there...Enjoyed the video my friend..I am looking at a used to 2001 yz250f that the seller says doesn't run.. needs rebuild kit..he's asking $1800 obo... I wonder how much it would cost to rebuild the engine like you are doing here? If I buy can I ship the engine and rebuild kit parts to you? Thanks Kenny in Winona Mississippi USA

Hello. I could really use your help! That banjo bolt that you put in the case at the 18:58 mark I stripped because the torque wrench decided to not click! I've been working on this bike for months now and couldn't imagine having to pull it apart again😭 What you do??? And does that hole just go into the case behind the clutch? Like if I was to have to to any drilling, could I just take the clutch out and clean the shavings out there? I'm really stressing out about this. Thank you for any advice you can give me...

Algún mecánico que aya visto un motor de yz fx 250 en Texas nesecito ayuda

Where is the case gasket?

did you oil the oil filter before you put it in?

Can you rebuild mine?

Where’s the rest of the build

Can someone tell me if a 2002/2005 are the same motor and components? Having a hard time trying to find a video for my 2002 YZ250F

Tristan, where do you get all your tolerance specs for a bike from online, if you don't have an actual service manual?

Am I supposed to add an adhesive or oil on the valve gasket cover at 12:07? If so, what kind do I need? I have a 2004 Yamaha yz250f

Out of curiosity how long did it take u to do the rebuild put the bike back together etc ?

On 2:37 in the video what is the spring and metal little rod for

I wish you could rebuild my engine

👍👍

I dont know where u got. 040 on the 2nd piston ring but that gap is double what it should be. You had to have read it wrong on the instruction pamphlet or something. If you are building engines you should know better than that...

How much are those engines

I am curious😂

Why didn’t you use anaerobic sealant between the case halves... instead of RTV silicone??

I year anniversary 🤔

Bom dia amigo vc

May I buy this engine? 😂 I believe mine is seized too

🫡

Public comment!!

Dude, you. Don't make any dances you powder coat.The case covers, but you don't clean up the casings at all on a complete rebuild.Why even bother if you're gonna leave the casin's filthy man?You didn't even really clean them up.Much less.Get the corrosion off of them. No damn sense at all.