Yamaha FZR 1000 Hardening the Valves by TIG Stellite Welding

Low cost and simple way to long-life Valves. The Yamaha engine is that one from my Goggomobil. I want to reduce the service intervalls for adjusting the valves. Welding without handgloves just for this case to handle the camera.

[@banno6938]

most people have no appreciation for good machine work or knowledge of what it even is .

[@Kickemindanutz]

That's how we have the modern ICE, not to long ago skilled technicians(like the man you see working here) would tear engines down in the paddocks, hit the ports with die grinder, changing profiles, or hammer a 2t pipe into a different shape...experimenting. Ever heard of Kevin Cameron? Yes, engines will be blown, but the next one will be better. And whomever is not willing to experiment and fail, to gain knowledge, will not contribute anything to the next generation.

[@HyzerGlen]

That was fantastic to watch, thanks for documenting it. I'm amazed that the valve stems didn't warp while you were welding the valve!

[@danthemanzizle]

Thats a lot of work to not have to do a bit of work every few years. That said, its exactly the kind of mod I love! it would handle a turbo better now I suspect.

[@78cobra]

fyi, it was cool seeing the valves repaired, a lot of work and machinery involved. i didnt realize how big the machines really were.

[@stevelamperta865]

there's no way you would catch me putting that back in my motor! I know valves arn't free but there cheaper than rebuilding the rest of the engine when that welded valve comes apart at 10 grand !

[@ImNotADeeJay]

It is always nice to see old school machining, but if the engine was mine I'd have replaced the valves, guides and seats for new ones (I know that you still have to machine new ones to adjust them)

[@SoyBoySigh]

Take it from me, I'm a baldy - Nothing's more beautiful than a freshly shaved head!

[@addemoto]

Just in case the OP doesn't respond: That seems like a very awkward way of raising static compression to me. The true and tested method of achieving higher compression is to use a thinner head gasket and/or machining down the mating surfaces of the head and cylinders. Another reason not to weld the valves would be weight. You want the valves to be as light as possible. Lastly, you will probably warp the valve stem using your mig/mag welder. I hope this info will help you in some way! Cheers!

[@FerreirAveiro]

Yes he does know what he is doing. Good job!

[@roystone9682]

nice work,i re sat my valves on my bug the same way you did yours,you know the job is done properly when you do it yourself plus it is satisfying,if you know what i mean.

[@iguanapete3809]

Can that be done with regular flux coated arc stick or oxy propane. I don't want to buy a $1100 Tig welder to fix a $400 M/C head.

[@Ratzfourtyfour]

All you need is 10 tons of equipment ;) Nice, anyway.

[@surfwolf3]

or a fist full of hundreds

[@Volto12]

Chyba nie zrozumiałeś, tutaj chodzi o zwiększenie ich wytrzymałości. Tak obrobiony zawór jest znacznie twardszy (spaw z tiga to nie jakiś chiński szajsmetal), nie wyciera się, nie zużywa. Dzięki temu można spokojnie odpuścić sobie regulację zaworów, którą w motocyklach wykonuję się dosyć często. Można dyskutować nad sensem itd. ale facet naprawdę zrobił dobrą robotę. Pozdrawiam serdecznie kolegę :)

[@starshooter10]

sometimes its more fun to do it yourself just because you can :)

[@Kickemindanutz]

The op is banking on the stellite being a better coating than the stock valves had(which I believe are just stainless anyways)

[@78cobra]

correct me if im wrong. since motorcycle heads are designed to have the valves pound/ware into the head, for good reason at that. wouldn't the only way to increase valve adjust intervals be by hardening the valve seats! not the valve

[@strattuner]

DO NOT PAY ATTENTION TO MOST OF THE IDIOTS WHO SAID NEGATIVE THINGS,i have installled new valves and had the heads pop off,tig welding is the strongest weld affordable,you have machine shop equipment use it,the rest of you buy new you must be bucks up,hotroding is fixing what you have at your task

[@recapturedcountry]

nice pice of work, but i was thinking that a set of new valves for that and a good heat treating job could only cost about 200 to 250 $. i get trying to reduce service intervalls. but you have years of skills so im guessing your makeing a good buck at work. it may have been cheeper to just work a half a day. that being said it was a great video , be a good machinest that knows what he's doing. wish there was more of this on youtube!!!!

[@Volto12]

Good work. I dream of such a lathe.

[@themaxrider]

Yes he did. And I stand by what I said. That is the crudest work I've ever seen on a precise engine. You just don't do stuff like that ever, unless you just don't care. The valve grind by lapping with a drill made me quiver.

[@carmelpule6954]

The nature of those grinding sparks indicate clearly the hardness of that metal deposit.But does hardening means that it can withstand higher temperatures and being able to lose heat by conduction to the stem? I wonder how the valve seating stands all this?

[@matthewarmstrong7069]

he is not raising the compression, that can only be done by making the combustion chamber smaller. his valve were damaged and he is repairing them and making them last longer in the process. the only solution for your kart for more power is a bigger displacement engine

[@johnlaplume2862]

By planning the head he raised the compression.

[@bros.9073]

Ich fresse einen Besen, wenn die Ventile sauber funktionieren!

[@NephilimFree]

I don't think you can make the valved harder. Theyt are already made of some of the hardest steel man can make. It looks like ruining the super-fine tolerances between the valves and heads to me. This cannot possibly yield superior results.

[@ModernDecay70]

You can "hard face" a lot of metals, but everything has to be super clean and you have to watch your temps.

[@Tuukkis]

@Paul Lo Cicero you might be able to make it harder, but then it isn't low cost anymore. Just get a set of titanium valves.

[@bobwatson6726]

Am I the only one who winces whenever someone strikes an arc on a video??? LOL!

[@porousorificePilot]

if this is a common occurrence due to lack of tappet clearance from valve face wear then yamaha needs to own it and revise the valve material used. Ive seen this type of engine design go well over 80K with no lash adjustment and not burn a valve. A set of one piece performance valves is cheap compared to a scattered engine due to a broken valve that was brittle from welding. Nice work but not worth the risk in my book.

[@edwardmatthews5899]

cryogenic treated is top dog for hardening do youre bearings,rods,pistons,valves,and gearsets ,for $200 and it would be bulletproof like you see these guys who have treated standard engines to over 1000hp and next to no wear what so ever 1000+dyno runs at 40 psi boost and 3yrs later racing .

[@127069]

nice but I wouldnt fit a toolpost grinder and do stellite on that lovely new looking lathe!

[@andrewwilson8317]

Nicely done!

[@andycliff1965]

Top job mate ! you should be running a bike spares and repair shop ? you would make a mint ? ? Where was your beer by the way ???

[@HusseHeiza]

Schöne Werkstatt, viele Maschinen die ich auch gerne hätte :-) Welchen Schweißzusatzwerkstoff hast du dort genommen? Hast du das Ventil durch die Schweißarbeit nicht massiv geschwächt? Übrigens coole Methode Ventile einzuschleifen....... sieht sehr interessant aus :-D

[@airplane247]

how you chager to do all that to a FZR 600 head

[@surfwolf3]

this is bad @$$ !!!! I love it !!!!

[@tecnoaddicted]

sie sind meine hero!!!!!!!!!!!!!!

[@motoclonkdribblehead5423]

using the side of a grinding wheel not designed for such use is very dangerous. it also ruins the wheel. even so the lathe spindle speed is way too high as is the speed for lapping the valves in. although it may have worked it is very rough arsed and will potentially completely lunch the top end. good luck keeping it running

[@nojodas321]

hola, buen video, pulgar arriba, pero no era mas facil y barrato y rapido comprar la valvula en la yamaha?

[@S.Garage]

これは凄い！バルブを修理してしまうなんて！御見それしました！ 最高です！

[@kawasakipilotu]

hi master..what kind are you using wire

[@BaileyEvans]

i want a tig welder so bad!

[@padeyjenteraretro2252]

sir.. can it be done on damaged valve.... the valve that sink into the head...?

[@dads420]

Amazing work!!!

[@mad4tarmac]

hope you did a weep test!!!! them old fzr were bastards on valves blue smoke routine,heard that Thunderace 1000 valves fit too and are a better job(not sure if true but going to look into it.

[@mad4tarmac]

oh you did fair play!!!must watch vid to end before commenting!!!

[@yamariderAllen]

mad4tarmac a fzr and yzf1000r "thunderace" is the exact same motor.... i have a 97 thunderace

[@juliolausell4399]

Parts made by hand can get you to go 203mph. World's Fastest Indian.

[@correoafg]

Un trabajo muy basto y sin precision.

[@robertopinci]

Amazing the king

[@Teto]

Hallo Leute, Eure Videos sind Klasse und die technischen Werke sind beeindruckend. Nur einen Hinweis muß ich geben: die Grenze ist offen, man kann die Ventile jetzt beim Yamaha-Händler kaufen (>_

[@davidlisney2059]

Fascinating video, I see comment that you ground the stem but you didn't, wonder if the engine keeps it's valve clearances better now?

[@Arcstrike77]

Apart from the fact that any heat treatment or coatings etc has been rendered useless by the Tig Welding...

[@DEATHWINGS5000]

Oh please man this was the 90s were talking about metallurgy has only improved since then

[@E2R6T4B7]

VERY VERY GOOD

[@daverose3238]

Grinding on a lathe without covering the ways? Bad practice.......

[@alexhise968]

My lathe can turn a shaft the entire length of the ways (60") within 1-2 thou taper. And the ways are so scary to look at

[@davelassell]

I wish this was my job.

[@Antony_Jenner]

Lapping valves in with a drill ? Doesn't that ruin the guides and and the actual lap it'self, did you blue them and check sealing surface....

[@dkongul]

as long as you dont get lapping compoumg in to the guide its perfectly fine. remember those valves are doing min 7k rotations when the engine is running at 14k.

[@nightmareinaction629]

How much does a job like this cost

[@spencer41188]

so what's the deal with this I assume you got it together and beat the snot out of it how about a 3 year update. I have 2 86 fazers and a 87 fzr 1000 that are getting up there in miles and I don't feel like dumping $300.00 on shims per engine or $30.00 per valve and on top of that the exhaust valves are not available new. I got all the tools available to me all I got to do is pick up some filler rod. is it worth it. I think so

[@kennycresci9319]

spencer41188 You make it sound like having the tools, are all you would need to accomplish this. I've been doing motorcycle cylinder heads for 40 years, and I can tell you, that properly done valve jobs, (and the people who actually know how to do them) are few, and far between. Especially when dealing with 4 & 5 valve combustion chambers, and the 'tiny' valve stem diameters that they use. It doesn't matter if your working with a $40,000 seat cutting machine, or those goofy little 'NewWay' wrist twisters. It's not the tools, as much as knowing (in practice) how to use them. That comes with experience, and ((ONLY)) experience. Kenny @ KC Engineering San Francisco, Ca.

[@spencer41188]

Kenny Cresci welding and engine machining is what i do its just i have never welded valves and machined them back to spec. i guess the questions i was trying to ask are: Did it cost you $1000.00 to do the valve job? and How is the engine doing after you've beat on it some?

[@KooKL4]

At first I was like, this name is crazy. Then I was like, this man is awesome! Was there a chunk missing from the valve there at the start? If so, why?

[@coollinohd7911]

Probably for the weld to grab better like some sort of plug weld

[@MSJDesign]

low cost if you have a machine shop :P I wish i did.

[@TEAMCREAM_96]

aren't hardened valves guides and seats like 500$

[@terryblankinship2192]

wernt the valves in the 5 valve fzr engine titanium?

[@alexhise968]

Not this version

[@mlodyqlimax]

You do not have money for new valves?

[@debbiewarlow1158]

I would not trust this repair . If the valve was sodium filled you have just fucked it plus the cost of replacement parts is cheaper and look at the machining required. They are just pulling the piss

[@evilsadvocate]

they are obviously not sodium filled.

[@oregcsotany]

Még a szar Dacia motort sem lehet így javítani, nem egy Yamahát .

[@Obliterous]

Not all heads are soft-seat.

[@wolflover552]

One down. 20 more valves to go. ;-;

[@rob098890]

Zero Fox Given 19 you mean? Haha can’t believe no ones corrected you in 4 years

[@user-dr6yd6ot8e]

สุดยอดคับพี่

[@pmgodfrey]

Aren't machinists awesome? Why, yes...we (electrical engineers/mechanical engineers and hobbyists) are.

[@banbijyunn]

バルブ、買ったほうが安いんじゃないですかー(O_o)にしても、なんでも直す根性が凄い

[@antondimitrov2979]

tozi taka narechen maistor vav kavichki chisto i prosto absoliutno nishto nepravi

[@josephflynn1382]

jesus thats takin a chance!!!!!!!0 fair play i wouldnt try that:)

[@williamharvey6581]

THINK I WILL DO THAT TODAY111

[@Bazuzeus]

That's just so incredibely fucking stupid... Kind of remebering me peeps using cans to do some cylinder head gasket. Nice work, but will break soon

[@michelrubet8062]

si t'est cubain ça l'fait.

[@cliodu14]

Tres belle video remise a neuf des soupapes et rectification de la culasse

[@themaxrider]

That is the crudest work I've ever seen. It is very improper to lap the valves using methods that you are using. You must not have ever heard of interference angles? This means the seat is at 45 degrees and the valve face 44. The one degree difference makes for a knifes edge to seal on the face of the valve. All spring pressure focuses on one sharp edge. What you just did was make both angles the same. It will only seal for a short time. It will continually loose compression.

[@paspale]

Bad and dangerous job for engine later...always new valve

[@ninakrettek8892]

Auch beim Ventil gilt, nach fest kommt ab !!

[@themaxrider]

Also I saw you grinding on the stem of the valve. That is very wrong! You now have weakened the stem severely! I would be willing to bet it will drop the head of the valve in no time! While your methods may work on old farm equipment, I'd never ever attempt to do what you just showed! These engines are much more precise then this, and deserve to be treated as such. You showed everyone what NOT to do!

[@JMartinhomestead]

please tell me you lapped the valves......

[@whyshywank]

maybe watch the video till the end?

[@yamaha18600]

c une blague cette vidéo, n'importe quoi, rechargé une soupape !!!???? et le rodage avec une perceuse alors la je suis tombé de mon siège.

[@Bn200Ltly]

just dont seem cost effective me good valves are cheep..;

[@cookymonstr67]

All that heat...valve looks like a fuckin potato chip....lol....ps...check your flow....no bacon in TIG

[@Robert260288]

haha, get new valves , is no wort doing it haha

[@nagec1]

Welding the valves is never good! They need to be replaced!

[@CICHYLAGNY]

Masakra

[@11097824022007afrimi]

50 Prozent der Reparatur ist Reinheit.

[@MrKostik5]

Проще купить новые клапана

[@Trancerus]

проще и дороже раз в 23;)

[@oliviertlouzeau2376]

dédé la bricole ! pour un moteur qui tourne à 12000 tr/min, je parie pas un carambar sur sa methode ! Le gars il doute de rien !

[@Ihavetruth22]

Mistitled video. fix it. it's welding a broken valve.

[@mikitza1]

DO NOT DO THIS,NEVER!!!

[@popolupoz11]

ale żeby spawać zawory?! śmieszne!lepiej kupić nowe!

[@350sobol]

kup nowy

[@Arcstrike77]

CRETIN.

[@yamariderAllen]

mad4tarmac a fzr and yzf1000r "thunderace" is the exact same motor.... i have a 97 thunderace