Modification and replacement of the beryllium valve seat - Honda CRF 250
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- Опубликовано: 25 ноя 2021
- Hi.
This video shows - step by step - repair and replacement of valve seat. Material of the new valve seat - beryllium copper.
Caution Beryllium is harmful.
Safety precautions must be observed when working with Beryllium!
. . . for more interesting videos click ,, HERE "
/ @paulxchannel 
Хобби
By far the best machining videos I've ever seen the way he lays it out in sequence and displays the tools needed for the job absolutely epic and I'm jealous of all the machining tools I wish I had that in my garage.. THANKS PAUL X
100% AGREED!!! Paul X is an awesome mechanic with awesome tools! Too bad he doesn’t live in the U.S. (Do you Paul?) I definitely have a few dirtbike repairs and modifications that would be awesome to get his help with and insights on. You don’t find this kind of talent at your local dirtbike repair shop.
I enjoyed both the machine tool use and the artistry using the rotary tool to dress the damage. Outstanding skills
Traumhaft schön immer wieder deine arbeiten und Videos.... so detailreich und entspannend zum kuken !!! love it !
Wow, that was mesmerizing to watch the process. Clearly a knowledgeable and talented organization.
I also often work on that stuff, my only job is using simple tools, not as sophisticated as yours mate. Your work is amazing mate
I 've watched it twice and it's just insanely cool. You're a great fellow. I am writing through a translator if anything, I'm sorry, your subscriber from Russia is the city of Chelyabinsk
Я смотрел его дважды, и это просто безумно круто. Ты отличный парень. Я пишу через переводчика, если что, извините, ваш подписчик из России - город Челябинск
انا ميكانيكي دراجات نارية وشاهدت الكثير من عمليات إصلاح الأجزاء التالفه لاكن هذا الفيديو اذهلني فعلا انه اكثر من رائع تحياتي لك من العراق
satisfying to watch...that kind of tools to repair the damage..is amazing...keep it up 👍
This is really so cool. Wish I had all the tools and knowledge to do it myself :)
As always, amazing job.
Thank you.
Beautiful work ! So many thank for your sharing knowledge !
Awesome video,I’m a 2 stroke guy & I Just bought a New 4 stroke…I know Some stuff about 4 strokes but This is New to me…that’s a Lot of Work but You made it look Easy🏆
very thorough and neat work supported by good tools
Another very interesting vid. 🤙🏾 looking forward to more.
I'm impressed with the removal of the gashes in the head. If it was mine I'd be very pleased.
Simply, some fine piece of art work. Amazing.
This video blows my mind. I have a CRF250 head that needs the seats reconditioned. I have a Bridgeport mill and a South Bend lathe but I don't have the stones to even attempt a job like this. I am sure I would mess it up. Bravo!
Dont, beryllium is one of the worst cancer agents known to man, get rid of any bike that has it, dont touch it dont work with it, the guy in this video is going terminal very soon, im a metal refiner and i dont fck with beryllium ever, that entire shop is now contaminated even the children he went home to... google beryllium affects, hes dying soon sadly
amazing how people have this very special tools always at home...
That’s some mighty fine engineering right there 👍
Superb work. Perfect ,proper and precision .
Never cut Beryllium dry at all if there's a way to wet it and worst case scenario, hook up a vacuum cleaner on the flanges of the head to suck any dust coming out with the chips.
👍
Nice !! that's like a higher form recycling fun to watch and I just digg them fancy tools it's as clean as an operating room all up in there !! 😁👍
... skvělá práce ( sehr gute Facharbeit )👏👏, pozdrav z Czech Republic 👍.
وكذلك التشيك عندهم إبداع وقمت الإبداع ❤❤
Superb job! greetings from Argentina.
This is Paul X!!! AMAZING!!!
Professional job! Well done👏👏👏
Thank you very much. The machine work, OK. Your HPR Valve Cutting Machine is magnificent !
Perfect video buddy!! Amazing! You are an artist!!
Nice job Man you're a professional
PAUL X toujours passionnant et............."instructif"!
Professional tools and their correct use resulted in the repair of valve seats. It was nice to watch it, congratulations 👌.
Thank you 😀.
I live that the valve driver guide is an old drill bit! Brilliant recycling!
and a wobbling one
Waoo...este trabajo está perfecto 👍🏼. Andas en otro nivel camarada, Saludos desde Guatemala 🇬🇹💪🏽✌🏼
Nice job, well done!
cool valve opening tool is very useful brother 🙏👍
Hermoso trabajo felicitaciones!
Exelente trabajo, felicitaciones 👏👍
فنان بمعن الكلمة 👌🏻👌🏻🫡
I enjoyed this... Even though I'm a two-stroke guy and I don't like any of those "valve" parts. :P
2 strokes suck
You're 2-stroke wouldn't be up to much without the exhaust 'power valve' parts 😉😂
@@daddy5225 actually my CR500 doesn't have a power valve. Those are optional. There are plenty of two strokes that use a reed valve but it's a completely passive device.
What I posted is called a tongue in cheek comment. It's a joke that the original poster seemed to completely understand. Primarily because he was working on the top end of a four-stroke, specifically the valves while none of those parts exist on two stroke bikes.
Seats
Valve mouth it is fed three angles 60 45 30 degrees, ???
Keren, pengerjaannya sangat presisi dan ketelitian serta kerapihan tingkat tinggi
AMAZING WORK!
You do a very good job👌✅🧑🔧
Amazing work done there👌,really satisfying to see all that perfection and exactness of all your processes and machine work,makes me somewhat envious for real...I have the same 2007 Honda CRF250R 4-stroke which also made me enjoy the video a great deal! About a year ago my bike had to have both exhaust valves replaced since the bike was starting only after being pushed and even then it was misfiring while in idle ending up turning off sooner or later. An experienced friend looked into it and detected the issue,I then ordered the 2x exhaust valves,2x seals and new gaskets. It solved the issue,it starts and runs🙂,but it makes a slight rev cut when cold which fades a way once it takes off. My friend said for me to order a new replacing kit for the carburator which I did and I've been waiting on my friend to have a chance to mount the kit up...Do you think the new replacing kit for the carburator with new needle,o-rings,jets, valve and a couple of other brass parts will solve this issue🤔? Thank you in advance,my best regards to you all the way from PortugaL🇵🇹.
BEAUTIFULL JOB
GREETINGS FROM BELGIUM
Always awesome jobs
Thanks.....
Very nice job, awesome
Nice machine from indonesia bro 🤘
Exelente trabajo , felicitaciones , tu vas al grano con el problema y solucionarlo , trabajo de mucho nivel con las herramientas apropiadas , saludos desde peru , casma.
Great video 👍
Me encantó el trabajo que hiciste me encantó excelente trabajo
Damn… all of it damn… Rad video dude.
Beautiful work
work of art..goodjob
Your video very detailing.tq for tips...
Excellent work keep it up
Great job!
Amazing work..... wonderful......
Hello 👋 you are berelians باشکوه وبینظیر ممنونم وهزاران هزار 👍 👍 👍.........تشکر جناب مهندس عزیز....🙏🙏🙏🙏👌👌👌👌👌
Nice job king 👑
from malaysia support nice tool nice skill.. i hope my racing motorcycle head can be modified by you hahahah
First time
Amazing hitech precison
Nice job thers
Killer job man
Parabéns mais um trabalho maravilhoso e muito lindo até k enfim uma moto nossa , crf 250 tem agora k mexer com a moto beta
I like the intake valves being pushed on with his fingers cause it failed the vacuum check the first time lol.
45 degree seat angles are cut way too wide as well hence the reason why the intake valves failed the vacuum check.
Thin seat angle = best seal and flow.
Other then that overall good job doing the oversize valve seat.
Very,,, very,,, attractive work 👍👍👍👍👍
Spettacolare lavoro impeccabile bellooooo.
very nice job !
wow..a cool job..great..
Como siempre buen trabajo
Инструмент у тебя классный.👍
да это так и он сам делал этот стэнд для ремонта и в ленте есть подробные видео как и что он делал
Nice work 👀👌
Nice work bro👌
Nice work, looks like this work is more expensive than the head xD
VERY NICE, THANKS,
Spectacular video Sir.
Paul, do you need special cutting tools for beryllium cooper. Or can you use the same cutting tools for the ductal iron seats
Отличный канал .Хорошо оснащёный мастер
Olá bom dia ,gostei muito dos teus vídeos Pará muito bom ,queria tirar uma dúvida ,tenho uma nx400 falcom ,ela tá vazando óleo pela junta do cabeçote ,esse óleo ele pode passar pra camera de combustão ,qual procedimento que devo fazer só que a moto não sai fumaça
So I bought new valves for my old head the stock valves are intake SS and the exhaust are titanium. I check the spec of the valves seat and the valve guide both are good. So am I good to lap the intake valves and install
i love tool guy very pro !!
a real good job 👍👍👍💪
Very nice job🤘 Just curious about installed height and such. Would've been nice to see complete job because overhead cam clearance etc. Nice machine!
😲😲😲 monster!!! - ruclips.net/video/3xCLrGHvMb8/видео.html
Please look Newen contour-machines on YT
Just measure the not damaged valve stem and make same height with the repaired one
Bulls eye spirit level is very handy!
Sehr schön 👍
Nice processes! As others have said, carefully with the beryllium.
Great job
satisgfying ⭐⭐⭐⭐⭐
nice tools
Mantap semua👍🙏
amazing to see how something ruined is repaired
Mind blowing.
♡
Very nice job
So amazing..🔥
wow nice job 👍💪🏻👍💪🏻
Did you get any feedback on how the motor ran after the head repair?
wow, very good
I had a co-worker do the same thing as this with his CRF 250 but he had the head ported and polished new seats all the way around. It had plenty of power, sadly the engine only lasted 3 races. The bottom end gave out spectacularly and destroyed the whole engine.
and where did you buy the hole centering trees?
sorry I'm very layman, if replaced with a becu, how long will it last compared to albronze and iron like the original?
Did you fix the seats after that vacuum test?
Olá bom dia,muito bom teu trabalho , aqui no Brasil estamos precisando de mecânico como vc ,aprend muitas dicas com você parabéns amigo.
Verdade
Professional .
"Valve seat damage!" That is an understatement.