This is not what I consider a restoration. This was a clean and paint job. No rebore & piston. You even reused the head haskets. It's prettier than before, but mechanically its unchanged. I would hire you in my shop as a blaster and painter before I hired you as a mechanic.
Mechanically unchanged is an understatement. Has only gotten worse. He even made a gasket for the 2 case half's, increasing play in the shafts even more. My man used the wrong screwdriver for the cluch, and the head didn't even meet the cylinder. So, squish clearance would have been way too big. Technically worsened for sure. I could literally go on an on.
Mechanically unchanged is an understatement. Has only gotten worse. He even made a gasket for the 2 case half's, increasing play in the shafts even more. My man used the wrong screwdriver for the cluch, and the head didn't even meet the cylinder. So, squish clearance would have been way too big. Technically worsened for sure. I could literally go on an on.
The sand blasting, polishing and painting were nice, I would recommend doing that with your engine if you're tearing it apart fully anyway. The rest of the build however, I do not agree with and to everybody seeing this and never having done a rebuild like this before but considering doing one, I would not recommend at all doing what you see here. Reusing old seals and bearings after dousing them in brake cleaner and whatever leftovers remained in the crankcase is not at all sensible. I can only assume this build was done for someone who wanted to spend as little as possible or very little in general. When 'restoring' an engine like this certain aspects are of course a matter of personal taste, but replacing oil seals and bearings all around is no superfluous luxury. That piston was looking pretty rough too, and the cylinder wall will most likely have shown a similar wear pattern. I this particular case I would have done something about those as well. We didn't even see if you did maintenance on the carb or clutch. As I was watching I was wondering 'Why would he spray steel components with brake clean and not re-oil them immediately afterwards? That risks corrosion forming on them...' And would you look at that, all of the steel components got rust splotches on them at the point of assembly. Into the bargain, the crappy intake clamps and hose weren't even replaced. That stuff's like a few dollars or euros at your local hardware store, if you didn't have better ones already laying around. Nice end result to look at, but pretty poor technical refurbishment.
nice job! also i'd recommend when you tighten down the case bolts you distribute equal pressure, ive accidentally snapped a crankcase bc I didnt tighten the bolts down in a certain pattern.
Nice vid, some remarks: Just hoping you’ve replaced bearings and seals off camera🙈 But why are the gears and ALL other internals covered in flashrust?! Would certainly not feel comfortable putting it back together like that. And why do you bother restoring wear items like the cilinder kit and airfilter? Would certainly never re-use that cheesy old airfilter🫣 And lastly, you should always tighten the crankcase bolts manually, and more important: evenly!! Goes a long way in not destroying the bearings.
Thank you for the excellent video and bringing back pleasant memories. These were remarkably reliable modern tech liquid cooled 2 stroke with automatic oil injection . You could runt hem all day at 80km/hr and not have a worry. Thank you Yamaha.
@@henkkaasjes9837 Thank you . I am Italian and spent much happy time on a Yamaha. Till this video that is one of the excellent features I never noticed.
It's just a cosmetic restoration. He left old bearings, old filter, old beaten up piston etc. Very bad example of restoration, made just to make a nicely looking engine, not nicely working one. Shame.
I already knew that the gearbox gears will rust when I saw him cleaning them. If you clean your gearbox, at least spray some WD-40 after so it doesn't rust after cleaning. Regarding the sand blasting, there is a more popular and better way to clean the engine cases and it's called vapor blasting, it leaves a smoother and shinier finish that results in oils and dirt not sticking into the porous aluminum. Ps: When you put together the engine halves, you tighten the bolts in cross pattern. And there is no reason not to change all the oil seals when doing such a job, I would also change the bearings, piston/rings/circlips and the needle bearing of the crankshaft. Also it looked like the crankshaft was slip-fit into the bearings, which means the bearing seats are gone. If you make custom gaskets for the cylinder, the squish value has to be mesured for the engine to run correctly.
Hey by the way I would not use that air filter because I have had experience with them before and they don’t filter sand or dirt they do flow good but the flow to good but good job it looks really good for what it was.
pelo amor de deus, o video tá todo errado, ele não fez uma coisa direito, o cara diz que restaurou mas só limpou e pintou, até mesmo a junta da tampa superior o maluco reutilizou num motor que já teve ter mais de 20 anos de uso... não cara, fale por si só, ninguém mais no Brasil deveria curtir uma praga dessas
красивый но не более кв без перебора поршень старый цилиндр тоже просто отмыт это что переборка? а звезда это же сюрекен он уже должен быть в утиль как и патрубок впускной который сгнил а его просто покрасили там пора новый делать. beautiful but no more than kv without busting the piston, the old cylinder is also just washed, is that a bulkhead? and the star is the same shureken, it should already be in the scrap as well as the inlet pipe that rotted and it was just painted there it's time to make a new one.
Lots of effort, and done nicely, but some parts with wear should have been replaced... What you did you did nice, but at this stage some parts are better to be replaced not only cleaned. Also if you want to avoid the parts from inside to rusat, after cleaning them put some oil on. (And I recommend for the cleaning diesel oil, and no water. It also helps to prevent rust, and cheap.) But please replace that sprocket, its really the end of its life... :D
Bueno, tanto trabajar en el motor, para dejar rodamientos viejos y poner una junta entre los semi cárter, este motor no lleva junta sino pasta de juntas. Pero para disfrutar de un vídeo de "restauración" ha estado bien 👌🏿
Nice video. I wonder why the port on the carb next to the ports for pre heat water was plugged off with a screw? Is that supposed to be plugged as well?
imagine doing an restoration and ending up with rustier internals than before. i would also tighten that cilinderhead a bit more, if youn want it to break, better do it good
Да он внутри как новый выроботки почти нет, поменял сальники и уплотнители и пробегает ещё). Вот японцы технологично делают, продуманная конструкция. Один недостаток это патрубоки из карбюратора к лепестковому клапану лучше цельным такие детали делать проблем с подачей топлива не будет и мельше деталей.
That's a minarelli am6 engine. Not a "dt50 engine". And i'm suprised that engine runs for 10 minutes after the treatment you gave it. Would've probably been better off just getting it started.
Am i the only one who is noticing the inside of this engine looks brand new? The electronics look out of the factory on teardown and the engine shows little wear on the inside. Its like he bought the engine brand new, trashed the outside and called it a restore....
Normalement un am6 ne doit pas avoir de joint entre les carters moteur, c’est pas fait pour, et il manque le contre écrou du plateau Presseur, encore pas mal de chose à dire mais flemme d’écrire
This guy might be good at making things look pretty but I'm 15 and even I can see the incompetence that this guy has mechanically, didn't replace any head gaskets or seals and as for putting an engine back together with virtually no new parts and flash rust on the gearing this is utter pain to watch.
This is called cleaning not restoration. What tolerances where checked? What play was in the crank? Was it out of balance? Why were the rings not replaced etc etc etc.
nice video but you didn't build the block correctly the head gasket is not reusable if in that state and the clutch lid wasn't put on in the correct direction. the way you blocked the flywheel by the crank is just wrong. the intake manifold is so old that you should not reuse it and you did not properly install the case
That headgasket was totally blown, coolant and exhaust gases will mix. There is no sense to do this job without replacing all the seals and bearings at the same time
Is it called restoration without replacing wear and tear parts such as bearing and oil seal?
No it's called cleaning
and he put the clutch pressure plate on the wrong way
@@venni3996 nah its the right way
@@sweguy3602 He did put it first the wrong way, but then fixed it and cut the part where he fixed it, out of the video.
Restoration: Fix EVERYTHING that came off of the object.
Rebuild: Fix everything by either fixing it or buying new parts.
Video shows that the engine was only washed not restored
God thanks 🙏🙏 !!! Finally a more serious comment than the video
Because it's such a good engine that it doesn't need to be repaired.
And sand blasted
@@tajfun9021 you cant tear apart and engine and not do the seals or barrens let alone head gaskets looked like they were cardboard
He is restoring it to better condition… no where in the title does it say rebuild or repair😂
Too bad for all the work, but reinstalling old bearings and seals is not possible. That has nothing to do with restoration.
not to mention he didn’t oil anything when putting it back in the bike
This is not what I consider a restoration. This was a clean and paint job. No rebore & piston. You even reused the head haskets. It's prettier than before, but mechanically its unchanged.
I would hire you in my shop as a blaster and painter before I hired you as a mechanic.
ruclips.net/user/shortsZLtGHOCltHE?feature=share
facts bro,he couldve done full maintence on it but didnt even change the cylinderhead gasket🤣
Mechanically unchanged is an understatement.
Has only gotten worse. He even made a gasket for the 2 case half's, increasing play in the shafts even more.
My man used the wrong screwdriver for the cluch, and the head didn't even meet the cylinder. So, squish clearance would have been way too big.
Technically worsened for sure.
I could literally go on an on.
Mechanically unchanged is an understatement.
Has only gotten worse. He even made a gasket for the 2 case half's, increasing play in the shafts even more.
My man used the wrong screwdriver for the cluch, and the head didn't even meet the cylinder. So, squish clearance would have been way too big.
Technically worsened for sure.
I could literally go on an on.
Yamaha DT50 is generally the name of the motorcycle that carries this engine whose reference is: AM6
AM6 Minarelli.
@@philippejoseph8604 Yes précisément 🇫🇷
Spot on, I own one
wich is a piece of shit of an engine
yes but from the clutch cover i can tel that this is from an early aprilia back when they had am6
Wow engine looks brand new inside! Amazing how well they’re sealed
No doubt why almost every brand with the same type of bikes uses the same engine
Its minarelli AM6
The sand blasting, polishing and painting were nice, I would recommend doing that with your engine if you're tearing it apart fully anyway. The rest of the build however, I do not agree with and to everybody seeing this and never having done a rebuild like this before but considering doing one, I would not recommend at all doing what you see here. Reusing old seals and bearings after dousing them in brake cleaner and whatever leftovers remained in the crankcase is not at all sensible. I can only assume this build was done for someone who wanted to spend as little as possible or very little in general. When 'restoring' an engine like this certain aspects are of course a matter of personal taste, but replacing oil seals and bearings all around is no superfluous luxury. That piston was looking pretty rough too, and the cylinder wall will most likely have shown a similar wear pattern. I this particular case I would have done something about those as well. We didn't even see if you did maintenance on the carb or clutch. As I was watching I was wondering 'Why would he spray steel components with brake clean and not re-oil them immediately afterwards? That risks corrosion forming on them...' And would you look at that, all of the steel components got rust splotches on them at the point of assembly. Into the bargain, the crappy intake clamps and hose weren't even replaced. That stuff's like a few dollars or euros at your local hardware store, if you didn't have better ones already laying around.
Nice end result to look at, but pretty poor technical refurbishment.
Pic na sprzedaż
10 seconds in, I had to restart the video because I heard laughter and thought it was outside my window. Nonetheless, excellent work, as always!
This is not a good job. He just wash the engine.
nice job! also i'd recommend when you tighten down the case bolts you distribute equal pressure, ive accidentally snapped a crankcase bc I didnt tighten the bolts down in a certain pattern.
If you think this is a nice job, you don’t undertand a lot of mechanics and restoration
@@iltutt0f4r35understand*
Maybe you should understand how to spell before commenting.
I was simply trying to be nice
@@TheGameBest7 maybe a digiting error?
@@iltutt0f4r35 possibly
this video reminded me something, do not judge on appearance
j'ai eu le temps de faire 4 Arrete cardiaque en 20 min de video, tres belle experience je vous en remercie
Nice vid, some remarks:
Just hoping you’ve replaced bearings and seals off camera🙈
But why are the gears and ALL other internals covered in flashrust?! Would certainly not feel comfortable putting it back together like that.
And why do you bother restoring wear items like the cilinder kit and airfilter?
Would certainly never re-use that cheesy old airfilter🫣
And lastly, you should always tighten the crankcase bolts manually, and more important: evenly!! Goes a long way in not destroying the bearings.
Not to mention how easily the crank slipped In definitely needs looking at
engine is in awesome condition from inside
Его можно было не разбирать с такой ‘’реставрацией’’ просто помыть и помыть покрасить
Хорошая работа 😂😂😂
Этот гений помыл воздушний фильтр почистил звезду которой коней но а так там надо было разбирать потому что там вся поршневая ржавая
Thank you for the excellent video and bringing back pleasant memories. These were remarkably reliable modern tech liquid cooled 2 stroke with automatic oil injection . You could runt hem all day at 80km/hr and not have a worry. Thank you Yamaha.
its not a yamaha made engine but ist from motori minarelli from italia its an am6 engine
@@henkkaasjes9837 Thank you . I am Italian and spent much happy time on a Yamaha. Till this video that is one of the excellent features I never noticed.
It's just a cosmetic restoration. He left old bearings, old filter, old beaten up piston etc. Very bad example of restoration, made just to make a nicely looking engine, not nicely working one. Shame.
Satu lagi, dia lupa mengatasi karat pada gigi rasio
Padahal itu sangat beresiko ke yang lainnya di dalam mesin untuk jangka panjang 💀
@@HerryHero mungkin yg punya gak mau ganti bang, takut biayanya mahal.. 😂
@@yogibeghie2246am6 parts are very affordable
From a piece of crap to holy crap!!!
❤️❤️❤️👍🏻👍🏻👍🏻
Awesome job!!! Can’t wait to see Part 2!!!
LOOKIN' GOOD, NICE WORK...
Only estetic restauration😂😂😂
I already knew that the gearbox gears will rust when I saw him cleaning them.
If you clean your gearbox, at least spray some WD-40 after so it doesn't rust after cleaning.
Regarding the sand blasting, there is a more popular and better way to clean the engine cases and it's called vapor blasting, it leaves a smoother and shinier finish that results in oils and dirt not sticking into the porous aluminum.
Ps: When you put together the engine halves, you tighten the bolts in cross pattern.
And there is no reason not to change all the oil seals when doing such a job, I would also change the bearings, piston/rings/circlips and the needle bearing of the crankshaft.
Also it looked like the crankshaft was slip-fit into the bearings, which means the bearing seats are gone.
If you make custom gaskets for the cylinder, the squish value has to be mesured for the engine to run correctly.
Добрый день наконец новый выпуск 🔥
Ficou como novo ! 👍🇧🇷
can you add the name of the parts please in your next videos, i like the method, thanks
The am6 engine is a good engine... But for me RK6 for life!!
surface rust looks good on the gearbox
Hey by the way I would not use that air filter because I have had experience with them before and they don’t filter sand or dirt they do flow good but the flow to good but good job it looks really good for what it was.
yea they let all the sand in through the spots where they missed to glue.
I usually let my parts soak in the parts washer while I order new parts to (restore)!
Precise restoration, congratulations 👌.
Thank you for the like 😀.
Ça remonte des pièces usé en fait ??
Ou est la restauration la dedans à part nettoyage et peinture ???
elle est pas là
He could at least have replaced the piston, given its condition I'm sure it is blocked
Am6 engine, easy to work on and very powerful with some performance parts such as 100cc 2fast 😈
Nice video! Small tip: If you bolt or clamp down the engine during disassembly, the video becomes more pleasant to watch.
nice job👍👍👍
just painting and cleaning! replace seals and bearings??????
Top top a galera do brasil curte seus videos
pelo amor de deus, o video tá todo errado, ele não fez uma coisa direito, o cara diz que restaurou mas só limpou e pintou, até mesmo a junta da tampa superior o maluco reutilizou num motor que já teve ter mais de 20 anos de uso... não cara, fale por si só, ninguém mais no Brasil deveria curtir uma praga dessas
Awan subscriber na hahahahaja
Am5/6 mineral right.? Have the same
OMG the Oseal condition for head
And adjust gasket paper on case
That's a new engine with exterior dirt
Never seen a AM6 engine use mid crank casing gasket
красивый но не более кв без перебора поршень старый цилиндр тоже просто отмыт это что переборка? а звезда это же сюрекен он уже должен быть в утиль как и патрубок впускной который сгнил а его просто покрасили там пора новый делать.
beautiful but no more than kv without busting the piston, the old cylinder is also just washed, is that a bulkhead? and the star is the same shureken, it should already be in the scrap as well as the inlet pipe that rotted and it was just painted there it's time to make a new one.
What's that liquid you clean the crankcases with at 6:00?
aluminum does not have this red rust, this is probably just water and dishwasher soap
Lots of effort, and done nicely, but some parts with wear should have been replaced... What you did you did nice, but at this stage some parts are better to be replaced not only cleaned. Also if you want to avoid the parts from inside to rusat, after cleaning them put some oil on. (And I recommend for the cleaning diesel oil, and no water. It also helps to prevent rust, and cheap.)
But please replace that sprocket, its really the end of its life... :D
no replacement of the cylinder? or pistons etc.??
Bueno, tanto trabajar en el motor, para dejar rodamientos viejos y poner una junta entre los semi cárter, este motor no lleva junta sino pasta de juntas. Pero para disfrutar de un vídeo de "restauración" ha estado bien 👌🏿
In Austria we call it "purer Pfusch!" ig de clutch is wrong and is that paper tape as sealing?
Nice video. I wonder why the port on the carb next to the ports for pre heat water was plugged off with a screw? Is that supposed to be plugged as well?
how do we know if the engine works ? 😋
don't work, at all
Pleased make a Honda CX 500 v 2 engine🙏🙏🙏🙏🙏🙏🙏
someone buy this guy a jetwasher jeezuz christ
Complimenti !!
Ahhhyy, that really hurt in the mechanic part of my brain... 🤯
The good Old am6 engine. My absolute favorite engine ever produced
Isn't the carborator hose very crooked?
working on an engine wearing a hoodie with strings is a big no no. My chin learnt this the hard way
ржавые звёзды кпп👌👍
What product did you use for clean the paint?
head gasket go brrrrr, it will not last a day
Restauration without replacing any part with new one
Hoće li biti nastavak sklapanja krosera ili samo motor
could have washed the engine on the outside first before disassembling it.
Qual o tipo de tinta spray esse rapaz usa? queria pintar o motor da minha moto tambem.
What years and country were these sold in?
I would highly recommend using muriatic acid to remove rust and corrosion
Muriatic acid eats away at aluminium, which this engine is made of.
Ahhh, I get it now. Reman only means washed and repainted. R&R: remove and repaint. Always wondered what that meant.
For your info engine is called minarelli AM6, Im running exact same engine and exact same condition as this and it doesnt need a restoration tbh
No bearing changes or hone ?
The engine is not build by yahama, it may come from a yahama but its built and provided by minarelli. (minarelli am6).
imagine doing an restoration and ending up with rustier internals than before. i would also tighten that cilinderhead a bit more, if youn want it to break, better do it good
Да он внутри как новый выроботки почти нет, поменял сальники и уплотнители и пробегает ещё). Вот японцы технологично делают, продуманная конструкция. Один недостаток это патрубоки из карбюратора к лепестковому клапану лучше цельным такие детали делать проблем с подачей топлива не будет и мельше деталей.
Did bro even change the bearings
sealants,bearings ?
could you tell what foam this is to remove the rust?
That's a minarelli am6 engine. Not a "dt50 engine".
And i'm suprised that engine runs for 10 minutes after the treatment you gave it. Would've probably been better off just getting it started.
Am i the only one who is noticing the inside of this engine looks brand new? The electronics look out of the factory on teardown and the engine shows little wear on the inside. Its like he bought the engine brand new, trashed the outside and called it a restore....
That is exactly what he does
Pq ngm fala que esses vídeos são tipo asmr dele trabalhando nisso ? Os barulhos e tals
Il faut changer tout les roulements Fréro mdr
Et faut faire un nettoyage carbu pas que de l'extérieur 😂😂
L’embrayage a mal été monté il est bon à démonter pareil pour les roulements 🥱
Yamaha.aprilia.rieju y alguna marca mas. usaba ese motor.... minarelli 😂❤
In Germany we say Pfusch 😂
Мамкин рестовратор 😅
Veramente questo ha lasciato i paraoli e i cuscinetti senza cambiarli? Robe da matti
Normalement un am6 ne doit pas avoir de joint entre les carters moteur, c’est pas fait pour, et il manque le contre écrou du plateau Presseur, encore pas mal de chose à dire mais flemme d’écrire
yep c'est honteux ^^
Cylinder do szlifu, tłok, pierścienie, sfozeń i łożysko sfożnia do wymiany,zębatka od napędu do wymiany
what product do you use to clean the block?
i recommend gasoline or brake clean
Bro thats just a dirty new am6😂
Tu as oublier la rondelle de calage sur le barillet et ont ne met pas de joint intercarter sur am6 mais pattes à joint dirko
Washing the paper air filter???? That was my limit...Find another occupation dude, thats not for you...
embarrasing, right? always hated these filters, they dont even hold against sand, thats why i always make my own from foam sheets, never fails!
This guy might be good at making things look pretty but I'm 15 and even I can see the incompetence that this guy has mechanically, didn't replace any head gaskets or seals and as for putting an engine back together with virtually no new parts and flash rust on the gearing this is utter pain to watch.
@@Redgearr also the fuckin masking tape gaskets
Yeah, it literally does nothing to the filter lmao
@@AlluzHH these filters let sand through them, thats why you throw em out
This is called cleaning not restoration. What tolerances where checked? What play was in the crank? Was it out of balance? Why were the rings not replaced etc etc etc.
Qlq sait ce qu'il utilise pour faire partir la peinture
Opening from the piston rings are facing to the exhaust. That won´t last long.
what to use to clean the engine? I mean this liquid
crankcase locator bushings?
What product do you use for the oxid?
dishwasher soap
can you restore 125cc Lifan ????
nice video but you didn't build the block correctly the head gasket is not reusable if in that state and the clutch lid wasn't put on in the correct direction. the way you blocked the flywheel by the crank is just wrong. the intake manifold is so old that you should not reuse it and you did not properly install the case
That headgasket was totally blown, coolant and exhaust gases will mix.
There is no sense to do this job without replacing all the seals and bearings at the same time
ouais pas mal pas mal
😮👍🏼👍🏼
Oops bro forgot to change the bearings 😂