The WORST dirt bike engine we have EVER seen... we had to use a SAW to open this WASTED YZ125!
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- Опубликовано: 15 дек 2023
- The WORST dirt bike engine we have EVER seen... we had to use a SAW to open this WASTED YZ125!
Guys, we are stoked to announce our new company - MX Skill Shack! We are even more excited to teach you everything we know about building dirt bikes!
This wasted YZ125 engine was SO NASY inside & will make a killer comeback story! Not only for the sake of teaching- but we also can't wait for one of our of our lucky MX Skill Shack members to take this transformed Yamaha two stroke home when it's complete!
We certainly have never used a hacksaw to open an engine before 😂
As it sits. it is easily the worst dirt bike engine we have ever seen. No contest.... but not for long! We're ready to save this neglected turd, and show off how we do it with all of you.
Sign up to MX Skill Shack below, and be sure to connect with us on IG for sneak peeks of these builds as well as in-depth MX tech tips.
Welcome to The Shack!
-Charles Lytle & Tony Jeske
🔥MX Skill Shack links:
Website: www.mxskillshack.com/
Instagram: / mx_skill_shack
RUclips: • MXSkillShack.com | M.X...
🔥Metro Lakes Engine Stand:
www.mxrevival.com/product-pag...
🔥COMPLETE Engine Teardown Toolset:
www.mxrevival.com/product-pag...
🔥Check out our amazing Build Team members:
🔥Motion Pro:
Website: www.motionpro.com/
Instagram: www.motionpro.com/
RUclips: / mpsite
🔥Maxima Racing Oils:
Website: maximausa.com/
Instagram: / maximausa
RUclips: / @maximaracingoils8192
TikTok: / maximausa
Facebook: / maximaracingoils
🔥Hinson Racing:
Website: www.hinsonracing.com/
Instagram: www.hinsonracing.com/
Facebook: / hinsonracing
#YZ125 #TwoStroke #BikeBuild 
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Love how much fun you guys seem to have. Yall's sense of humor reminds me of my military days working on the flight line.
I could totally see that dude. Tony’s been on bikes most of his career and my background was electrical construction. I’m sure the humor and banter is very similar! Thank you for your service and thank you for watching.
Uncle Tony..very jealous of your shop setup...so clean and organized...very professional
It’s bad ass, right?
Thank you Dave!! Really appreciate your feedback and the compliment
I dig that rotating engine stand for disassembly and assembly. Great tool.
Awesome channel guys. Watching from the UK.
So pumped to have you, thank you for watching! Hope to see you at MXSS as well
Any machine shop with just a brideport mill and a lathe can bore the crankcase "crank bearing bore" and put in a sleeve made to fit. The sleeve will be thin, so don't make it a press fit into the cases, just a nice, slight interference fit. But make the bore of the sleeve about .0015" smaller than the new bearing diameter, which will make it all a .0015" press fit. The job can be done in 2-3 hours, (about $200.00), including making the sleeve and a new bearing pressed in, by a good machinist. Make sure you tell them that the bore has to be within .0001" of the location it is in now.
It’s 1am in Australia and I’m pissing myself laughing in bed watching this. 😂
Maxima Racing Oils, Motion Pro, Hinson Racing…..plus I watched the ads. MXSS
You’re the man! Thanks for always chugging along with us. Will send you one of those plastic mattress sheets for the bed!!
BRUUUUZZZZZZZZ!
@@mxrevival Thanks Charles.
That "murder scene" black plastic of Uncle Tony will more than do the job.
Merry Xmas to you both.
The dream team are back!
Uncle Tony shows his experience removing the drain plug. Someone had totally butchered it trying to remove it.
Yet Tony removed it easily. 👍
The magician, with a simple flick of his wrist! And his dirty sock…
@@mxrevival 🤣
@@mxrevivalahhh. Shyyytttttt! Give me some SHYT to drink
@@mxrevival the crust-buster!
Shout out to Nick! Guy is a class act and always takes care of his customers.
Nick is rad
Lmao that intro was next level 😂😂😂
One of these days I’m sure we’ll film one of them together - BYOB…
Brief comment on bearing torque plate JIS fasteners. Ive found that using allen drive is beneficial when reassembly of lower end is done. If its a 45 degreed fastener I aways go with the allen drive. Same for straight shoulder also if there is no space constraints. JIS style heads are prone to stripping and allen style gives way more support and positive engagement when its time to send it home. Good content fellas. Keep it coming.
Great tip, just like the KTM! When we did the MC500, noticed those were allen head screws at all the keepers.
We appreciate your viewership, and your value ad!
@@mxrevival You're welcome. Best of luck with the Yamaha. It's definitely a roach in need of work. Being a vet builder/rider from the mid 80's it saddening to see these vintage two strokes neglected and left to rot. Basic maintenance and regular oil changes goes a long way in longevity. Riding them hard and putting it away wet is a sure fire recipe for its demise.
That squish band damage on the head was there before that piston was put in that engine. No marks/dents on the piston crown.
The engine internals actually looked pretty good, I was really surprised at the cylinder condition and the fact that the engine turned over and wasn't locked up especially judging by the overall condition of the exterior of the bike I have to say the build is looking much better, I guess there's a lot to say for that front rotating wheel from the first episode, you guys seem to have a lot of fun together which is priceless in my opinion, I've been working on bikes and cars and fixing and building stuff my whole life so I pretty much know how to do all this stuff but I'm gonna join because I think you guys deserve my support and want to see you do well in this new venture.
Qqq
i had a 1988 kx 80 and it was in much much worse condition before i rebuilt it, granted it had a mixture of oil and water in the bottom end it suprises me how it wasn't locked up though and had compression. because im am cheap i rehoned it and replaced the crank bearings, ect and all the seals and piston rings and gaskets but i used the oringinal piston because it was still usable but it had rust on it when i started
Great series! Film everything in detail about this yz 125. Happy New Year guys, be healthy!
Sickening details will be alive on MX Skill Shack for sure! Degenerate jokes on RUclips… happy new year to you as well, and we appreciate you!
1:52 All 125's, since probably around 1976, have a 6 speed gear box. You should try to find a 5 speed 125 MX bike.
Done. Good luck with the new business guys. Wish you the best.
Thanks for hanging with us.
These other build channels got nothing on you boys for hilarity! Good stuff.
We aim to please! We aim for other stuff too…. You get it… thanks for watching dude!
Still whipping my socks and hitting the ding ding lol bad ass tear down boys keep up the great work always a blast and good laugh watching y’all. Merry Christmas!!!
ooohhhh right in the ol ding ding! Merry Christmas, TG! To you and the crew.
I knew I wasn’t alone…. Merry Christmas Tyler!
I've torn the ass out of them engines many a time, especially in the snow, great fun doing doughnuts,
Excellent video and glad you guys are back !! Skillshacking that engine for inspection 😮 Great commentary and footage 👏 Hey uncle Tony love your work and experience- thank you both awesome entertainment and hands on demonstration - time to go fold some socks 😅
Thanks, Mikey! After a hard day work, nothing like a nice long cotton sock to fold and put on the shelf
Hey thanks Mike. Wait a dodge Ram minute…
You guys are like Beavis and Butthead with skills. Love the videos
Hahahaha I hope you caught the part where we were pretending to be them in the video… thanks for watching, we’re stoked to have you.
Great guys and great guys to talk to can’t wait for uncle Tony to work his magic on my rm125
We‘re ready for ya!! Thanks for watching dude
@@mxrevival can’t wait for uncle Tony to work his magic and then you making them look new
Nice "Dazed and Confused" reference. Great video.
You guys are so entertaining and funny to watch😂The first 4 minutes and i already need to sub
Stoked to have you, and we hope you win our builds!!
Showed up to learn how to work on a engine stayed for the beavis and butthead impressions yall are hilarious definitely going to sub to the $10 a month im planning on rebuilding my 450 myself lol
Stoked to have you, bro! We hope you enjoy what we put out and certainly also hope you win some of our bike builds!
21:25 You should have used the impact driver before you stripped the Phillips. Now take that hardened straight blade screwdriver bit from the impact set, put a socket and extension on the end, and hammer in the head of the screw a straight slot that will fit that blade perfectly, and the shock may loosen the screw for you. Now, impact it out.
Oh, don't forget to get a new screw.
Chisels come in clutch to smash 💩
3 De-sta-co clamps will create a triangle and flat plane, so the engine won't rock around.
Awesome video! Love your channel
We appreciate you!
Definitely remember socking myself in the ding ding a time or 2. Great vid! 💪🏼💪🏼😂
😂😂😂
If parts of the hard rod bearings went into the combustion chamber, you would see dents in the combustion chamber also, not just the squish band.
There was once a disaster and then a bandaid…
Great watching! You two crack me up! I'm about to start going thru the Skillshack videos of the teardown, but I'd love to see a walkthru of the shop itself--especially a discussion of the various tools. I'm not a brand snob, I want stuff that works, and I think most home mechanics aren't going to get tied up in form--just function. Especially for the specialty stuff. Here's my favorite gear holder but if I can't use this, here's another way. These are the torque-lock vise-grip pliers or the upgrade eye-bolt (seriously I might need to upgrade my Craftsmans), this is my favorite seal-puller, flywheel puller/case splitter/crank puller (other than Tony and his socks), and so on. I'm watching the video and pausing trying to spy on the stuff in the background!
BTW, keep an eye on the magnet on that Motion Pro jammer. I had a clutch basket that wouldn't spin by hand on reassembly...until I found that magnet stuck to the gears instead of the jammer. I still use the tool (or Honest Abe), but I keep an eye out for that.
Also, someone clearly cared for that thing before it got parked because the bearings must have had some grease in them for everything to come out relatively easy. I've had to treat RM250 swingarm bolts with a torch, 50/50 ATF/Acetone, and air chisel! I truly was surprised at the condition of the cylinder, and I would have expected rusty water to come out of the water pump!
Nice to see an American Made Champion air compressor in the shop! Did Ryan at Champion hook you up? Awesome video guys glad I found your stuff. Thanks for supporting American made equipment!
I know the sock dilemma Tony. I’ve felt your pain
Was it reaaally pain though?? Seems like it would be the opposite 🤷
😂😂
Love the show, new edition to the resto mod.
KEEP GOING this is as good as a Jim Carrey movie, I. L. O. V. E. I T!!!!
mXRevial Moving forward with great laughts and awesome mechanics.
Exciting!
The homie 🙌
Omg idk how im 5 days late but charles keep doing this you guys are amazing im laughing my butt off!!!
😂 we are here to be idiots for you! And Build, you cool stuff you can win!
Glad you guys are doing this video! I love a good resto of a piece of crap making it into something sick. & At least all the parts are there! The 93 KX125 I got as part of a trade looks like this but is missing the entire power valve system 😢. PO literally said “just needs a top end” lmfao. I knew way better than that but did it anyways to learn. Has a bad con rod too lol
My shift shaft was bent worse than that and it leaked oil I kinda bent it back some replaced the seal and I can't believe it doesn't leak anymore 😮
Good job dude!
First time checking out your channel. You guys are equal parts funny and dorky. Im in.
Hahahahahahaha glad to have you brother!
nice video got to get me one of those engine stands Tony real has to keep that sock thing under raps🤙
You know what Mike, yes you do need a stand. Also really gotta sharpen up 😂
Oh, it’s “under wraps” alright! 100% cotton haha!! Thanks for watching Mikey, we appreciate you. Reach out when you’re ready for a stand. We’d would be pumped to set you up.😍
@@mxrevival I think I’m ready if you send me a link here I’ll check it out
Vapor blast the cases. !
You already KNOW!
I just discovered you and you are awsome.
That engine really isn't in bad shape. The bearings coming out with the crank and shift drum are kind of concerning. I bet it would have ran.
Definitely could’ve been much worse than we assumed it would be. Just like Tony said, both of you are right. Probably would’ve ran.
From my experience with the 90's YZ that's typical of the crank and shift drum bearing and I don't think it will be an issue.
I knew we should’ve cleaned the carb and done a burnout. It would’ve been DRIPPY FIRE!
@@bigsmallblock9480sounds like a case of the kawasuki circa 04/05…. Those heaps did it all the time. Would actually source a roller bearing and inner race for the left side similar to Ktm’s. Made splitting a breeze.
What’s good Charles! Definitely in!
Stoked to have you, my G!
Your impact driver at 21:30 was turning the wrong way!
Video pressure 😂
How much torque will the gear jammer hold up too.
Maybe if you build it itl get left in the weeds for another 30 years and then your grandkids can build it again
Hahahahahahahahaha
Do they have a stand for utility quad motors
Hey Charles, kind of an off topic question, but havent seen a recient SSR SR300S posts. I belive the motor is a zongshen, and if so do you have the model number?
I will reply to your other comment. Thanks for watching!
I had to rewatch this for some more laughs!!! LMAO!!! Is a Dirty Uncle like a Dirty Sanchez?
Nice! I guess that makes us the Three Stooges. 😂
Nice 👏🏻👏🏻😎🙋♂️
🙏🫵🫵🫵
He ain't lieing about the sock. I'll admit it hahahahaha
Hahahahahaha
As long as the cases are good, its rebuildable.
Damn!!! I wasn't prepared to see Charles eating a banana so early in the morning!!! LMAO!!! That surely was the nastiest engine teardown I have ever seen...and the engine was pretty nasty, too!!! Looking forward to everything you have planned for us in the future!!! Thanks for doing this, I know I am not a skilled mechanic and could use all the educamation I could get!!! LMAO!!! Don't worry, Tony, I am a dirty uncle that nobody likes to talk about, too.
Gotta get that potassium in bright and early!
Thanks for watching Todd!! You rule.
Also the dirty birdyyy
I imagine you have a hook up with decalworks but if not reach out to me and I would love to do the decal kit for this bike.
Really appreciate the offer! While you are absolutely right, here’s some constructive feedback because even though your comment is awesome…. You gave me no information regarding your name, what your company is called etc.!
If we needed help, I wouldn’t know who I was talking to.
Go for the throat, Brother! Hit peoples contact links on their website direct and let them know who you are, how to get a hold of you via email and phone, and maybe a sample of what you can do.
Dropping this comment in case it helps you land some cool jobs 💪
And as always, thanks for watching!
Do the rebuild colors from 1995. Keep the engine silver or raw, cylinder head purple and the rims also.❤
I would do a DGY (Downers Grove Yamaha). They are awesome replicas
I LOVE THESE SMALL AND POWERFUL 2T ENGINES, IN BRAZIL WE HAVE THE YAMAHA DT-200 WHICH IS EQUIPPED WITH A SIMILAR ENGINE, WITH THE YPVS SYSTEM💀.
Engine stand is sick but not $900 sick 😂
Think so? I kind of look at it like a lifetime tool investment. One that actually helps you make money, if you build engines or work on bikes for a living. Guys spend 1/3 on decals that get ruined in one ride ya know!? thanks for watching!
$4 a month if it lasts 20 years!
Are you going to INVEST or not, too?!!!
I would love one of those engine stands. Wish I could afford one.
I know you would get a lot of use out of it! I’m sure you’ll get one eventually!
It would have been FRIKEN HILARIOUS if Charles had been wearing bootie-shorts in that opening “banana scene”!
😂
Careful what you wish for! #FineItalianFuzz
@@mxrevival 😂😂👍🏼
I know all about the ding ding socks bro
Hahahahahahahaha
😂😂 see Chuck, eat a bucket of…. Chicken tenders
Save Larry got Dammit! No food, no water! And Uncle’s voice when you asked about the condition of the engine! Priceless! 😂😂
Did Uncle just call me on dinosaur schlongs? Im telling ya chuck, uncles mind is dirty! First 🧦, then dino schlongs 😂
Dude, right? It’s like uncle Tony’s concentration camp…. All he feeds them are the used socks! #protienpowder
Yeah, he did! Hahahahahaha
@@mxrevival He might by this time confess that he is DIRTY Uncle and we had to make it stick! 🤣🤣
@@mikebrown41182hey look here capt tyranaschlong…
@@EMFTony Hey there Uncle Flintstone's buttcrack 🤣.
you know a engine is dirty when you need to shop vac it....
Absolute spider bomb! Thanks for watching!
You guys are hilarious, I rebuild motors for my friends, hope I win!
Stoked to have you!
Grateful to have you with us!
Does two tray's Tony have a channel I can go subscribe to?
I recently bought a kdx200… it had a skid plate on it and an owner who hadn’t cleaned it since 06 lol. That combines with the missing exhaust gaskets left a thick hard lair of crud very similar to this engine.. an yes thank god for plastic scrapers. I grabbed some of those plastic chisels from harbor freight and I honestly surprise myself, also they promised myself I’d never buy anything that bad again… unless is a 500 or something lol
Dude, what a mess! We feel your pain. Reliving it together again ha ha. Too funny, definitely need to save the labor, intense crust removal for the really sweet Projects. We hope you win this one!
@@mxrevival ooo believe im going to win this one Charles. Cylinders out for a replate and some porting. Crank is surprisingly great and on the money. I’ll be opening up the cases soon for mains, water pump rebuild etc.. didn’t realize you did vapor blasting. Might have to send you some cases because I have a problem… im addicted to dirt and BMX bikes lol. Have a good night sending love from RI
Hell yeah
The legend himself…
👏🏻👍
I wish they did more work than bromance. The camera is all over the place and the jokes r super corny. I don’t mind some horsing around but let’s get work done too!! This whole video could’ve gotten more content if these guys wasn’t on a honeymoon lmfao. They not gonna last long as duo make my work
To whom it may concern… I’d like two cheeseburgers with ketchup and pickles and don’t load it up with all of that BULLLLSSSHHHHIIIIITTT.
Sincerely,
Tony
Don’t be jealous bro, you’re welcome to join in on the Bromance 😘 thanks for watching and don’t hit yourself in the dick with a sock like Tony!!!
👍
looks good to me. ;)
You’re going to LOVE the finished product! 😍
You two are funny as fuck
It is a pleasure to share our immense immaturity with you!
just fyi u used the vicegrips backwards
Hahahahahaha we’ve been waiting for you
lol i saw he corrected himself lot of people dont even know channel locks, vice grips, and pipe wrenches are directional@@mxrevival
Hey thanks Mr Crazy Inventors…. The torque lock doesn’t give a crap. It just needed a tap. It just wants to eat. Lol.
First a saw, then vise grips? I have not watched the vid yet, (I have too much fun in the comments section just based on the titles).
Is there a "chisel and hammer" segment in the vid? Maybe some explosives to remove that stubborn clutch basket? :)
1998 called. They want their soul patches back
1998’s NOT OUR REAL DAD - STOP YELLING AT US 😂
Your mom called and said EAT A BAGEL
Your bagel called, said mom gave it poppy seeds
@@ThrashNC😂😂
Tony, how backlogged are you at this point?
Careful, we can turn that one into a dirty joke, real quick…. Hi DJ.
@@mxrevivalewwww Chuck.
Well a bit I suppose. Just have to get crafty with scheduling. Thanks for asking!
@@mxrevival you boys can turn bread into a dirty joke.
Was that even a JIS bit?
It was not, Tony also has some special bits he likes to use in addition to JIS. He may chime in with some more information.
"Guys, we are stoked to announce our new company - MX Skill Shack! We are even more excited to teach you everything we know about building dirt bikes!
"We had to use a SAW to open this WASTED YZ125!"
I think I can figure out the rest from here. Thanks anyway. lol
But wait, THERE’S MORE! I suppose I could’ve used an angle grinder for more DRAMA…
Steam clean it.
the easy way is to wash it and stand it in a drum of diesel oil for a few days
I bet everything falls right off!!!
its better than watching a man fold his socks as your substitute mammy folds yours, @@mxrevival
Can I c u replace a rod on a crank 😃
You certainly will on MXskillshack.com!
$950 for the engine stand……..
📈 not bad for a handcrafted tool that will last a lifetime 😍 thanks for watching dude!
@@mxrevival I mean… it does look pretty sick. There’s no doubt about that..
get going
😁
Don’t act like a comedian if your not funny.
Don’t act like a fact checker if you’re not one.
Maybe comedians are not funny. Do any of them write their own material anymore?
He only farted twice?
Free Smells
@@mxrevivalBtw - The Schwartzenigger impressions you've been doing are fantastic, laughed my ass off!