$700 Barn Find 1980's Dirt Bike Bogs And Has No Power

Рет қаралды 102,280

7 ай бұрын

I buy a 1986 Yamaha YZ125 dirt bike that has been sitting in a barn for years. I get it running but it has a major bog and no power. #Yamaha, #DirtBike, #Rare,
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@vigorousboredom7016 2 ай бұрын

Around 30 years ago, my brother and I used to have one just like this one and we rode it till it wore out. It needed a complete bottom end rebuild just like he did to this one. At the time, neither of us had the specialty tools or skill level to even attempt a project like that so we had no choice but to sell it to someone dirt cheap who did. The new owner ended up rebuilding the whole bike. This was 30 years ago before the age of internet or youtube. But, if I still had it, I bet I could've followed everything he did in this video and rebuilt the bike myself. He really does a good job of rebuilding these old dirt bikes.

@youngsimbah Ай бұрын

I have one for sale

@robertwhitey6621 7 ай бұрын

When cutting the inner race off close to counterweight we cut parallel to the counterweight at an angle across the race towards the outside that way we don’t hit the counterweight with the wheel.

@Canuck_213 7 ай бұрын

Grip tip 101. Use spray paint inside of grip while installing. Slick going on, stuck like glue when dry.

@dannie1236 7 ай бұрын

@2vintage cut inner bearing races at a 45 degree angle to minimise damage to shafts in future ! Lol made me cringe cutting it dead on haha hope this helps !!

@paulweigle6872 7 ай бұрын

You are really good with the motorcycle engines. Glad to see a young man doing his best to give older machines a new life.

@JJ-JOHNSON 7 ай бұрын

I'm glad your getting a sand blaster, I hate it when people rebuild something and not clean it up, at the end of a build the whole thing should look new.

@anthonyblacker8471 7 ай бұрын

I'm not sure if there's much better of a feeling than doing a fresh rebuild and 3 kicks later she pops right off AND sounds AMAZING! Nice job on this one Joe. .that's a GREAT bike, I love the original gold rims.. so nice!

@davebarrowcliffe1289 7 ай бұрын

Thanks for the spoiler... 😠 😂

@anthonyblacker8471 7 ай бұрын

@@davebarrowcliffe1289 sorry

@leebenson4874 7 ай бұрын

@@davebarrowcliffe1289 Fake news. The bike is not good he just burnt off all of the crank case oil is why the smoking stopped.

@davidronneberg2643 7 ай бұрын

I love the idea of getting a sand blaster for the cylinders and you probably already know but I would use soda instead of sand. Love watching your videos and I I’ve learned a lot from you over the past months.

@gjohnston281 7 ай бұрын

Soda blaster ❤

@ladyjedi3D 7 ай бұрын

I’m thankful when you go back to an open-ended project, and that we can see the finish. Glad you show us a part 2,or even 3. Been a sub for years. I know the routine you use for checking bikes and have visually learned how to take apart and put things back together. This grandma comes back to see bikes and 🎉Vinny!!🎉 yay!!! 😊 Also, be careful working with your gold ring, you can damage your hand/finger. Silicone bands are safer.

@peterleslie3083 6 ай бұрын

These videos bring back memories, when we changed a piston and rings out we used to have to run it in, we normally would take our time on the bike for about a tank and a half of fuel then we would start bringing the bands in a bit after 2 tanks we would thrash it otherwise it would seize and you would have to do it all again, i loved the 80’s what a decade listening to that engine at the end took me right back there

@finster7582 7 ай бұрын

Hey Joe ! Id recheck and research the power valve mechanism..id bet that those 2 parts should be screwed together. jus seems odd (and looks wrong). U should NEVER hafta grind a piece of a case UNLESS its for adding an aftermarket part that tells u to do that in their install directions...😃👍👍👍👍👍👍👍👍

@OldestYoungenInGuidePost 4 ай бұрын

No no no , everything nowadays is put together with a wood working hammer 🔨 and grind to fit, and grease into the wrong place and backwards information , and half arse it all back together with the same mismatch part’s!👌🏻🫡

@upperroomtoo 7 ай бұрын

Get the "aircraft stripper" from wal mart. No scrapping, just spray and pressure wash.

@davebarrowcliffe1289 7 ай бұрын

You can't go hitting a crankshaft with a hammer, Joe... Big end crank pin is an interference fit and brayin' on it with a hammer will unbalance the crank. That crank needs stripping and rebuilding anyway though so....

@OldestYoungenInGuidePost 4 ай бұрын

Did you see part two, where he was looking at the con rod and said that it looks good??!😳 It had nearly 10mm of play 😳 And then he goes and hits it with a hammer and un-trues it ! And he goes and re-hones the barrel, which has a billionth of a micrometer of nikersil left on!!!😳 What a waste of time and money 🤷🏻‍♂️ Literally just polished a turd 💩

@vigorousboredom7016 2 ай бұрын

@@OldestYoungenInGuidePost I believe that this dirt bike was made before they began using the nikasil-plated cylinders but I could be wrong. I know I had one almost the same year and I had my cylinder bored-out with a new piston and rings and it didn't require any nikasil re-plating after the bore.

@danielarney9729 7 ай бұрын

Don't beat your crank

@sideshow45 7 ай бұрын

Someone has to. My old lady won't.

@bogganalseryd2324 2 ай бұрын

Nah man, you have to yank it 😊

@drock5298 7 ай бұрын

That hole that you grounded down is actually for clocking the power valve correctly. Your supposed to line that peice up with the hole stick something there to hold it in place then tighten it all up. Even the 2 newer ones you tore down should be the same way to set the powervalve correctly. Love ur videos.

@bananabrooks3836 7 ай бұрын

Thanks, it didn't look right that Yamaha would design a superfluous boss.

@kingyankee69 7 ай бұрын

That's how he learns reading the comments. Can fix anything these day's with the internet. Wish I had it that easy.

@aaronhoward7593 7 ай бұрын

@@kingyankee69i remember having to save magazine's for the tech articles. they don't know how good they have it

@finster7582 7 ай бұрын

@@aaronhoward7593 ABSOFREAKINLUTELY !!! i was 11 with a pile of Dirtbike magazine and my owners manual rebuilding my YZ 80 J !!! 😃👍👍👍👍👍👍👍👍

@Timbo5553 7 ай бұрын

I thought that’s there for a reason I didn’t know what it was for but I would have done some research. Shouldn’t have to grind something that’s been intentionally put there

@Nighthawk1966 7 ай бұрын

Great great job on a super classic bike ! You are the man !

@patricspointofview7188 7 ай бұрын

Id say it's about time to invest in a parts washer.

@paymentmaker 7 ай бұрын

My thoughts exactly, and a table while your there Joe. I have a Harbor Freight motorcycle table , it was $500 bucks . Well worth it. Just a few pumps and the bikes up where you can reach everything. You do so much work on so many bikes.

@jasonjavelin 7 ай бұрын

Took my freshly rebuilt KDX to the trails for the first time along with a DRZ 250 I got from my father in law for really cheap. I was on the KDX and got about 200 feet into the trail when I stopped moving even when shifting and on the gas. Instantly knew the clutch was gone since that the only wear item I havent replaced. Thanks to your videos I figured it out fast and should be able to do the new clutch install no problem!

@Kilo_kyle 7 ай бұрын

Clutch is so simple. Like 6 bolts and springs and about 15-18 friction plates and spacers. They just stack and only go back in one way. You can stack them in the wrong order tho. New gaskets. New fluid and she will be ready to rip

@scottbamasime4338 7 ай бұрын

I bet your neighbors love listening to that for an hour..

@dudenamedclem 7 ай бұрын

Looking forward to you blasting soon, this particular video triggered my OCD with the rough looking mating surfaces but you’re a legend and admire your skills and dedication so much.

@jasonspellicy 7 ай бұрын

I'm hoping Santa brings you a 4k camera this year. Great video as always Joe.

@WreckedRevival 7 ай бұрын

He probably has one, if it's a GoPro he uses on rides he definitely does have the ability to film in 4k. I film in 4k 30fps on my iPhone & GoPro for my channel but It takes a decent amount of CPU and/or GPU processing power to edit then render 4k videos quickly and there's a lot longer upload times to KZfaq for 4k vs 1080p.

@jasonspellicy 7 ай бұрын

@@WreckedRevival yea my most recent upload was in 4k. But i have a high teir pc lol.

@jlp5137 6 ай бұрын

If you put the paint stripper on heavy then stick thin plastic to the parts over the stripper and then put them in bags and let them sit overnight to keep the stripper from drying out it should cut through all of the paint layers in one go. The problem with paint stripper is that as it dries the paint will reharden a bit making it hard to remove.

@pygmywarrior3 7 ай бұрын

Nice example of how not to remove a crank bearing!

@georgebell8826 7 ай бұрын

Right... Good way of nocking it out of true . Especially only holding it by the one side in a vice

@bbernadel 7 ай бұрын

I has thinking, "unbalanced crank much?"😂

@Workerbee-zy5nx 7 ай бұрын

I had that bike back in 89, it was red and white. I let a buddy ride it and the gear box broke. He paid for its repair..I found out later that that 86 blew up gears regularly. Mine never bogged..👈👈👈

@regnor166 7 ай бұрын

I found odd that there's no gasket between the two case halves🤔

@johnreid2837 7 ай бұрын

If your going to get a sandblasting cabinet make sure you also get a bigger air compressor to go along with it.

@kobybear08 7 ай бұрын

I DON'T KNOW Joe, That Bunny Rabbit might be faster than your Bike, The Rabbit was Moving at Lighting Speed, 😅 GREAT VIDEO TODAY 👍 Joe, Happy Holidays to You and Yours.

@jmandude7345 7 ай бұрын

Hey brother. Thanks for the memories. My first bike was '74 cr125 Elsinore. Ive done most of what youve done, but pretty much a hack garage mech. This bike was top of the line, when i was 18. I was around when lay down kits (toward late' 70s & werent stock) for rear susp were the in thing. The mono & water cooled were a huge break through. Im 61 & enjoy every vid you do. Enjoy your holidays & thanks again. You have a great bunch following you!

@conservativerealist 6 ай бұрын

Jim's just an apprentice hack garage mechanic..❤

@fishergardenerbakercook 7 ай бұрын

knowledge is king, and you have plenty of it, thank you for all the positive videos you share

@user-bh6un9cz5f 7 ай бұрын

I always liked the 1985/86 simple to work on and it's liquid cooled .. love those memories you brought back to me..

@user-jb7uz4hs2i 6 ай бұрын

Ah I do love the satisfying click of a torque wrench first thing in the morning! 😃

@robertanderson-yx8mo 7 ай бұрын

Future classic.as time goes by everyone will want an older 1980s 2stroke in their garage.

@michaelmitchell5909 7 ай бұрын

Great video man, love to watch you rebuild these old bikes. Do a video with the new plastics man, id love to see that. Million thumbs up man!....

@jimcarlisle2309 2 ай бұрын

Very good professional repair! Thanks for the Video.

@larrywarner9314 7 ай бұрын

They sell a bearing removal tool at harbor freight for that Joe , plus use some heat

@SteveTheCanadian 7 ай бұрын

Sunday, coffee, 2Vintage Video........Another great way to start the day! ❤

@papachis9535 7 ай бұрын

I usually drop my cases in the oven for a period before bearing replacement: ensures even expansion. If the bearings don’t drop in OK, it goes back in the oven. The chicken has to move over sometimes….

@jeffreybegeman9544 7 ай бұрын

I enjoy watching you bring these things back to life. That being said I would not hire you to build an engine for me. I would expect more sockets and less adjustable wrench and more torque wrench and less impact ugga dugga torquing.

@paulneedham6000 6 ай бұрын

Things you need bearing pullers bearing install sleeves short and long various sizes should come as a kit and for around 1200 bucks you could get a laser blaster maybe make a solvent tank with a pump and filter to help wash down the grease and oil I've been watching your good job

@davesplace1307 7 ай бұрын

Joe. The old gas you take out save it in a 5 gallon bucket. Make a heck of a parts washer. 5 gallon bucket with gas and a paint brush you can make those cases and parts look clean and almost new

@snowyowl7042 7 ай бұрын

Good project, sounds like it's humming along with some tweeking

@microsoftteams2663 7 ай бұрын

The OTC brand of bearing pullers are the best on the market. Remember you don't have to "bend the bolts" when tightening the clamshells under the bearing. The center bolt of your puller does 95% of the work.

@microsoftteams2663 7 ай бұрын

I should add that you should not try to pull two bearings at the same time off of the shaft. Do one at a time. They often bind up when you're trying to pull two at a time.

@oargaoarga6018 7 ай бұрын

Wash the motor before disassembly!!!

@chihuahuaverde425 7 ай бұрын

yes

@christaylor2168 7 ай бұрын

I grew up on a yz 125. Very good bikes. Good to see another one saved

@mikehudge78x 7 ай бұрын

Nice work - bringing back to llife a old deserving YZ is gratifying- they all should have a 2nd chance- i just completed a 77 YZ400D - I'm running a 490 piston with q cylinder plate making it roughly a 440 -great video Joe - thank you for all you share with us 🇺🇸

@TheUniversalEyes 7 ай бұрын

You should look into building a vapor blasting setup, which uses a Harbor Freight sandblaster. It's fairly inexpensive and the results are really nice.

@cbrmotardizzato 7 ай бұрын

Okay I watch all of your videos and I really like them. But hold on a sec… You wanna sandblast the motor to make look new, but I’ve never seen you actually wash a motor entirely before. So, if I were you, I’d start cleaning the motor first.. and THENNNN start sandblasting. (Btw sandblasting isn’t the best way to clean a motor because the sand particles can get stuck in the cavities of the motor. Buffering with a steel brush or Scotch-Brite is a better alternative in my opinion). I appreciate all the work you do regardless. Keep it up 👌

@GeoffWildehawkphoto 7 ай бұрын

was wondering why you don't clean up the exterior on the engine.

@wisecampmotorcycles8258 7 ай бұрын

He never does, because he's to impatient and lazy.

@MM_in_Havasu 7 ай бұрын

Probably bet the entire exhaust system is coated with oil residue from the blown crank seal and will take awhile to burn out, especially in the silencer.......unless the crank seal is in backwards. Thanks Joe, great video series!

@mikejacobs9657 7 ай бұрын

Thanks Joe! Another one up and running! Really enjoy the videos! What do you do with all the finished products?

@jayjudd6518 7 ай бұрын

😊😊 Good going , hope you show the plastic if you get new ones. That was interesting on those bearings. That white smoke had me going at first also. Following to see the next series. Congratulations 😊😊

@bobbymckinney1264 7 ай бұрын

Looks like it ran good when the smoke cleared out good job on a another fun bike

@mattbeaderstadt9256 7 ай бұрын

Huge fan but, the constant beeping about killed me. Lol. Love your channel

@jmudd5449 7 ай бұрын

You can hear the dirt in the bears and the threads. Smh

@sideshow45 7 ай бұрын

That's just so you know the bolt is turning.

@jmudd5449 7 ай бұрын

Lol

@kentuckyjohn6149 7 ай бұрын

They sell a bearing puller for When get stuck on crank. 👍 I watch all your videos you have come a long way…

@ryanwagner3223 7 ай бұрын

The best way to scrape gaskets off aluminum is to hold a razor blade by finger. By doing so it avoids gouging or damaging the surface.

@thebigguy8306 7 ай бұрын

Good buy, great job getting it running. Sounds like a little more adjustments needed

@JohnWhite-tg9wf 7 ай бұрын

well done shes running loverly now, exhaust tail pipes soaked in oil a repack i recon, keep them comming from watcher in England

@joebloggs2228 7 ай бұрын

bravo sir..really enjoyed your video .keep up the good work

@jamessanders7408 Ай бұрын

Good job Joe! Really enjoy your videos

@leewaken5059 7 ай бұрын

While you were at it, why would you not replace the counter shaft, shift shaft, kick shaft, clutch lever shaft and water pump seals? Oh of course, after "only" 37 years of service, those seals should have another 37 years of life in them, so why bother, right?🙄

@sideshow45 7 ай бұрын

If it ain't broke don't fix it. I'll never voluntarily replace a water pump timing gear seal on a GM LT1 ever again unless it's actually leaking. Nightmare that wasn't even needed.

@robertdavis4184 7 ай бұрын

Hey Joe question why don't you put some 2 stroke oil on the new rings before you put the cylinder on? Just curious

@markburns2545 7 ай бұрын

Wow...super impressed...you've got an awesome talent....massive respect 🙏....

@mikemartin2423 7 ай бұрын

Another great video brother...have to ask again if you can do a fleet update video and how you determine what you will keep and sell and show us what you are keeping 👍👍

@mattwebster7266 7 ай бұрын

What a great vid..! Watching this took me back years when i used to ride 2-stroke bikes. I rebuilt my first bike engine with no experience at all when i was 17 yrs old and it was a success. I'am in my mid 50s now and still have the mind of a 20 year old Lmao. I would still be out doing stunts and huge jumps if I wasn't disabled which was due to two accidents in my life. I've subscribed to ur channel and i'am looking forward to seeing you do more engine rebuilds etc. Great stuff keep up with the great work and happy biking... 😊👍

@jmandude7345 7 ай бұрын

Wow! Same here, brother. We apparently shared the same passion for this stuff back then. I owned a 74 cr125 elsinore, 74 mt elsi trail, & an 85 or 6 cr250. (had left side kickstart. P. O. S. Haha. Bad stator, cdi, clutch plates. Great reading your comment. Im actually 61 & enjoyed reading this! 👍👍😎😎

@conservativerealist 6 ай бұрын

So you stopped learning at 20 years old.? That sucks

@jasoncompton3735 7 ай бұрын

Love your dirt bike videos bro. Keep em coming!

@user-fi3fx5my2s 7 ай бұрын

Wedge between crank and race, it'll slide off, just be easy with it. You won't damage crank.

@PSBEadventures 7 ай бұрын

Good job! It's sweet when they go smooth for the most part!

@kalaharimine 7 ай бұрын

Nice job, something so rough now runs so smooth.

@HooligansMx 7 ай бұрын

That silencer is definitely packed with oil!!! And to run perfect you'd need to rejet it for this cold weather we are having in wisconsin

@garyallensworth9882 7 ай бұрын

Not sure if your aware but they make bearing pulllers there pretty universal so it would probably serve you well as many various machines you work on but makes taking any bearing off any shaft pretty easy. Enjoy your vids! A little set of acetylene torches would do you some good also!! lol

@bristolcity514 7 ай бұрын

A bearing splitter would work for bearings in locations like that.

@lawerncemiller6557 7 ай бұрын

Couldn't believe you didn't rebuild the crank if the outer crank bearings were loose the rod bearing has to be loose also it won't run very long until the rod bearing comes out of it an trashes the whole engine

@GNX157 7 ай бұрын

20:15 don’t know if you did it or not, but it’s a good idea to take some green scotch brite and polish the surface of that gear where the new seal will ride on.

@exix_yt8352 7 ай бұрын

Love the videos man keep up the good work buddy

@benschlack5814 7 ай бұрын

I'm just saying Joe, new crank bearings and seals contribute a lot to the performance of a 2 stroke it's very hard to tune an engine that has rotational drag and you can't mimic the load of the engine with your hand. Maybe consider it in the future that's all.....

@paul340mopar 7 ай бұрын

Did you even watch the Video, He did put New Bearings and Seals in.

@yeti8it396 6 ай бұрын

After a rebuilt top end for the first tank I always ran my mix a lil rich on oil.

@user-fi3fx5my2s 7 ай бұрын

Sounds good!!! Great job!! Plastics still need a bit of cleaning but NICE!!!😮

@stuartdimick1250 7 ай бұрын

Hey Joe if you use hairspray on the grips when putting them on, they almost never come off. Just thought I'd make a suggestion

@petepeabody8905 7 ай бұрын

Another great outcome. Vin loves it

@james-dt4ei 7 ай бұрын

Can u completely restore a bike from the ground up? That would be awesome!

@robertcraft-pj2jp 7 ай бұрын

Great job joe, finally stopped smoking as bad. Maybe a bit rich on the mixer of fuel. Maybe try 32-1. Seems to run smoothly tho.⭐️🇺🇸💫👍🏻

@bighomieJ5X 7 ай бұрын

Thanks for the awesome content.

@doglegjake6788 7 ай бұрын

Thanks for sharing a great video

@jimcarlisle2309 2 ай бұрын

You are the Best, Great Video’s , thanks.

@woodyWoodTimber 7 ай бұрын

the rabbit race you in the trail lolll nice you the smoke out of the engine good work

@johnnycrow2407 6 ай бұрын

When you go to Harbor Freight for a sand blaster maybe pick up a parts washer

@caperperformance4849 7 ай бұрын

Acid rim cleaner cleans the alum so good man you gotta try it

@keithbeasley1469 7 ай бұрын

Seal backwards on clutch side.

@carlnorthcutt8383 7 ай бұрын

No vinnie.....? Is he ok.? Jades toothbrush lol awesome video thanks

@ThisOldGuy3 7 ай бұрын

You need a solvent wash basin too 🤘😎🏍

@Eric--zs6um 7 ай бұрын

Gd job on the rebuild.

@TopNotchSawRepair 7 ай бұрын

I would highly recommend Super Clean for cleaning parts. I use it for all my stuff. Just wear gloves. It's very powerful

@aaronwhitted6293 7 ай бұрын

Love your work and videos. Where do you get your older plastics from? Some stuff is hard to find for example my sons 1999 Honda xr70 I am having a hard time finding new plastics for it

@ragnarironspear1791 7 ай бұрын

Why do they paint them black , in my opinion it makes them look rough

@mattdogg02 7 ай бұрын

Joe, try Purple Power to help remove the grease and grime off the metal... you need more than just soap and water, you need a degreaser.

@lukecombs5242 7 ай бұрын

I always use a tub of old gas and a small and large wire brush and scrub my parts that come out looking new and get a free buzz in the process 😂naw definitely do it outdoors and away from open flames.