$700 Barn Find 1980's Dirt Bike Has Major Problem
Рет қаралды 154,363
8 ай бұрынI 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 problem. #Yamaha, #DirtBike, #Rare,
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The following video features activities performed in controlled environments by knowledgeable persons. DO NOT attempt to duplicate, re-create, or perform the same or similar activities at home, as personal injury or property damage may result. 2vintage( Joe Weber, the persons shown in this video and ANY CONTRIBUTOR, ARE NOT LIABLE FOR ANY such injury or damage. ALL 2vintage( Joe Weber) CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
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@ghettsumm7949 8 ай бұрын
Take the broken gear pieces and assemble them on the other half of the gear, that will tell you if there are pieces missing inside the case. Great video Joe.
@jasoncompton3735 8 ай бұрын
Vin can outrun anything up to a 490
@AnthonyRufo-rc1zm 8 ай бұрын
That's one way for him to stay healthy
@paul340mopar 8 ай бұрын
Vinny Eats 125's for Breakfast!🐶
@craigmorgan4676 8 ай бұрын
@@AnthonyRufo-rc1zm wot breathing oil brother?😬😥💀💀💀😬🇿🇦🏈
@AnthonyRufo-rc1zm 8 ай бұрын
@craigmorgan4676 Most of the times his bikes don't smoke that much
@deborahchesser7375 8 ай бұрын
@@AnthonyRufo-rc1zmbreak in mix, couple heat cycles and she’s ready to go leaner.
@motion_mx 8 ай бұрын
I never understand why you rev the bike so much everytime you start the bike cold… I know these bikes are old and junky but still. You’re a good mechanic, let’s show that to everyone
@larrywarner9314 8 ай бұрын
Rookie , always use a small drill bit for a pilot hole before useing the screw
@darrynruzicka2883 8 ай бұрын
Exactly, I was like, wtf?
@jameshampton3969 8 ай бұрын
Generally when a piston top is that clean, especially on a 2 stroke, it's from coolant being burned in the combustion chamber. It steam cleans the piston and head. White smoke is also a sign of coolant being burned.
@vuongchibach8994 8 ай бұрын
I’m 18 and I fricking love every single of your dirt bike fix videos Keep it up my man 🔥
@michaelzullo6527 8 ай бұрын
Have u considered a parts washing station? This definitely needed it. Enjoy your videos and the knowledge you have.
@robertdavis4184 8 ай бұрын
You need to go to harbor freight tools and pick up a parts washer
@GNX157 8 ай бұрын
34:00 I was actually stunned when he made the correct decision to split the cases and do it right, and not just pop that crank seal out, which given his past videos is what would of been expected. Maybe there is hope….
@rztrzt 8 ай бұрын
lol
@larrywarner9314 8 ай бұрын
Yeah he tries, but he does take a lot of shortcuts.
@larrywarner9314 8 ай бұрын
He needs to get into a habit of power washing his projects or customers equipment before taking them apart!!!
@jasonjgr8580 8 ай бұрын
@gnx157, who cares which way he does it as long it works ,know it all.
@GNX157 8 ай бұрын
@@jasonjgr8580 LOL
@bevis226 8 ай бұрын
Your videos are amazing. I used to be afraid to split the cases on some of my old stuff but your videos raised my confidence levels at-least 10 fold over the last couple years. I just recently dove head 1st into a complete rebuild on a 2012 Polaris RZR 900 XP engine and it turned out amazing. All you really need is a GOOD service manual for the engine that you are working on to be able to rebuild an engine from the bottom up. Make 100% sure that you follow the manual step by step. Do not take any short cuts or they WILL bite you rite in the Wallet later on.
@reggiexp69 8 ай бұрын
i mean if JOE can do it we all can with motivation he used to just do top speed runs and clean up plastics with wd40 that was about it. see where he is now, bought a house a field and does complet engine rebuild now... you just gotta get motivated and try 5 years ago i didnt even know how to change brake pads... started with that then bearings, the jet in carb, and then in 2022 with a friend we bought a yfz450 taht didnt run but my friend thinks he is a mecanic but at the end i know more then him but i never try i get scared but we ended up taking tha engine apart so many times tha this year i change a base gasket on my raptor 350 all by my self (will need a new piston later but i was proud i did this by my self) the yfz450 we sold cause we never got it running right carb was complicated even with videos we got fed up and sold it for a 150€ loss a person. but now i feel way less scared to take engines apart
@Workerbee-zy5nx 8 ай бұрын
86 125yz suffered from gears cracking, i had one and it sucked. 87 cured that..this is why I stay with Honda.💪🏴
@donkndave7811 8 ай бұрын
Every time I watch a new video I learn something new. Never knew that about crank seals. Great videos. Thanks for educating us!
@okerhrh4139 8 ай бұрын
First 2 seconds I already knew it was a crankseal hh. Once you know you know! glad you learnt. I just sat there thinking.. what is he doing.. it’s not gonna get any better 😂😅
@chihuahuaverde425 8 ай бұрын
😀@@okerhrh4139
@bradwilliams5242 8 ай бұрын
Vin is right color of a properly jetted 2stroke spark plug
@dougaranda6187 8 ай бұрын
Lol, your neighbors must love you.
@edjacobson8480 8 ай бұрын
No neighbors out there.
@crystaljenkins3564 5 ай бұрын
Love watching your videos you do a great job telling every little detail about everything you build hoping to do the same thing soon
@leewaken5059 8 ай бұрын
Reeds ..."both are kind of open", "they don't look too bad though", "so those check out". Really? Please replace ALL the 37 year old seals, regardless.
@monsterkxf 8 ай бұрын
Perfect for repelling mosquitos in the summer 😂😂
@douglasr.c.5622 8 ай бұрын
Finally, a pressure washer. It's much nicer watching someone working on a clean machine.
@bevis226 8 ай бұрын
lol Much much easier to work on something that is clean as well.
@douglasr.c.5622 8 ай бұрын
@@bevis226agreed
@bradley7723 8 ай бұрын
Venier calipers? Time to step up your game and purchase a set of O.D micrometers, a I.D micrometer set and a bore taper micrometer. I suggest Starrett as they are in my opinion the gold standard of precision micrometers made in the USA. Edit: Central tool is another premium micrometer.
@thediddly 7 ай бұрын
I second that, said that earlier. Would 100% recommend starrett or Mitotoyo. Cheap and worth the outlay. Tools for life if you look after them particularly on small engines. Not so much in an engineering shop. My old man was a toolmaker, im still using his gear...they were second hand when he bought them 35 years ago.
@user-jp8tl1wi7g 8 ай бұрын
I love Vinnie!! He is a cool pooch. He sure does love Joe ❤
@matticus6339 8 ай бұрын
I had a 2001 Yamaha YZ125. Wish I would have never sold it. I had more fun on that bike than I did my CR250R.
@djantix1200 8 ай бұрын
Those plastics should be donated to an art museum LOL.
@johnedwards6939 7 ай бұрын
First problem was revving the heck out of a cold engine. Let someone who knows what they are doing rebuild it.
@robertstewart8704 8 ай бұрын
I had a cr500 with a bad seal in the case it would catch fire when trying to start it was a unusual honda cr500 the kicker on the left side and rear sprocket was on the right side
@user-ps7cy9gx6k 8 ай бұрын
Joe Joe u have a good eye for absolute classics I had a early 90s yz 80 and the white with red seat is the best look the yz ever had
@bleakyfinder2692 8 ай бұрын
Got to love Vinny, what a Dog he is.
@douglasr.c.5622 8 ай бұрын
Yea, every so often we even get to see Vinny s--t,,,, LOL
@timewa851 8 ай бұрын
If you watch carefully, you'll see Vinnie beats this pooch off the line, AND returns too, under his own power! 1:05 Puppy Power!
@marvelousministry9434 8 ай бұрын
Right off the bat at first start looks like it's burning transmission oil and two-stroke oil. Add somebody with a YZ250 that sat for a long time and it started and you can hear the main bearings were all pitted and rusted. So I had to rebuild the motor split the cases replace the bearings replace the seals.
@bioshift1 8 ай бұрын
You can see a glob of sadness come out when you first drained the oil. It happened when you were walking back. 7:18
@edwardestes8038 8 ай бұрын
Well Joe....i didn't see any mosquitos when you smoked em out
@stephenbates8370 8 ай бұрын
Do the mains you're splitting the case's anyway and there cheap 👍
@johnmyers7082 8 ай бұрын
Joe, your neighbors must love you..
@edjacobson8480 8 ай бұрын
What neighbor@?
@oldjarhead386 8 ай бұрын
Still watching. But really clean combustion chambers is almost always a sign of burning coolant. It steam cleans the inside of the combustion chamber. Also that stain on the crank is from it sitting in coolant.
@northofhwy8180 8 ай бұрын
You finally found some chunks.
@allan9603 8 ай бұрын
Vinny has approved the rebuild, so it's a go!😅😊😂
@MR-puffnstuff 8 ай бұрын
Love the older bikes.
@jozsef6453 8 ай бұрын
11:30 your power valve was also not moving. I think youre missing a couple pieces there.
@JoeTheBlacksmith13 8 ай бұрын
Base gasket was probably leaking coolant into the bottom end and lower part of the cylinder to cause the rust and excessive wear. And it’s amazing how many people service top ends without checking the ring gap!
@douglastalbot8031 8 ай бұрын
I think you nailed it with this comment, makes a lot of sense.
@mattklasen968 8 ай бұрын
Always excited to see when it says video dropped 2 days ago !!! Thanks for all you do love your channel bro :)
@jasonstcin659 8 ай бұрын
If you plan on keeping the bike and adding it to your collection I would go ahead and buy new plastics for it you'll love the difference it makes on the look it'll be beautiful awesome video as always thanks Joe👍
@wilbar66ful 8 ай бұрын
that's a skeeter killer
@KixBryant 8 ай бұрын
Gotta love 80's bikes
@wesleyblanton2432 8 ай бұрын
Since I've been watching Joe's Channel I have been screaming for him to buy a new Pressure washer!! The Day is finally here!
@taftbruce7975 8 ай бұрын
Holy crap lots of chunks !!
@kurtyoung6769 8 ай бұрын
I stopped at 43:43 to say that a piston is measured at the skirt not anywhere near the top. Pistons are tapered. Correct clearance should be somewhere around two thousanths for a 125 for new and probably reject at three thousanths.
@Antiquefarmequipment 8 ай бұрын
Love the vids! But ya gotta quite cold revving a 2 stroke! A friend of my brother' actually blew his 2 stroke up from cold revving it and riding it when it was cold. 2 strokes do not like cold revving.
@oakesiii3412 8 ай бұрын
Hes gotta be trolling
@Antiquefarmequipment 8 ай бұрын
@oakesiii3412 how? Trying to help him from blowing his bikes up?
@oakesiii3412 8 ай бұрын
@@Antiquefarmequipment he knows it needs a rebuild anyway.. if he revs it from cold he will get people like you commenting 😂
@Antiquefarmequipment 8 ай бұрын
@oakesiii3412 is not just this bike, it's all bikes. Even freshly rebuilt ones 🤣 you have no idea
@oakesiii3412 8 ай бұрын
@@Antiquefarmequipment I had a beta 300 2 stroke I'd never wot it when cold but this guy does it for the comments I'm sure of it 😂
@jessejarzabski5076 8 ай бұрын
Oh and i heard this original YPVS powervalve design needed a good cleaning every top end due to the way it was designed it gathered carbon where actuation occurs and used to get junked and oiled and gooped up and the lever would strip out the teeth and lead to it not opening so they say to clean it all teally well and make sure the drum style valve rotates smooth.....may not be able to actuate the power valve without the motor on and those governor bearings put the pressure on the shaft as needed
@davidmorgan5642 8 ай бұрын
Farming trying to get the power valve bolt out... comedy gold right there...😂
@TheStevo420 8 ай бұрын
The look on your face at 19 seconds was priceless
@Jeffrose_ 8 ай бұрын
Vinnie is happy with your progress 😊. That YZ is nice.
@jackmaynard2805 8 ай бұрын
got a suzuki pe175 that eating the transmission oil by the gallon😂. I believe its just the rihgt hand crank seal and it also has mad low compression so probably new ring. problem is I cant find any rings since it has a 0.25 over piston. fun time
@ronstewart4241 4 ай бұрын
I had the same bike, PE 175. It was a pile of junk. My friends used to call it Prolems Exceed. It was fun to ride when it did run.
@kurtyoung6769 8 ай бұрын
I stopped at 3:26 right after you that you're going to just replace the right side oil seal. Both need to be replaced because the other is worn out too and it is easier to replace than the primary side.
@JoeTheBlacksmith13 8 ай бұрын
I’m pretty sure he’s getting the correct puller for the stator and will replace that crank seal also. That’s what he eluded to later on at least.
@robertcraft-pj2jp 8 ай бұрын
Top end rebuild joe
@SteveTheCanadian 8 ай бұрын
Another great way to start the day ❤
@stephenmacdonald912 8 ай бұрын
I seen old 2 strokes like this on kijiji for 2000 bux.. people think just because its a vintage bike there suddenly worth all this money and there definitely not. 700 is fair i guess.. seen a 1997 cr500 on there for 20 000. U almost wanna message the guy and say are you ok…
@gordocarbo 8 ай бұрын
Prices on anything "vintage" are crackpipe prices Nothing rare or special about these bikes we would buy these all day for a few hundred in the late 80s and ride the beans out of them. As much as Id love another 2 stroke air cooled Im not gonna pay big $ for one
@quietbrianquiet 8 ай бұрын
I am pretty sure I am subscribed just so I can hear Joe say "power valve" not quite Canadian but not cowboy talk either. Greetings from Texas. When I was on the UP I asked where could I get a drink of water and was told the "bubbler" (water fountain) was on the wall . Never hear it before and never heard it since. But then again maybe I watch because I appreciative watching a skilled craftsman work.
@fwflyer78 8 ай бұрын
Something did fall out of the crankcase when you drained the oil.
@JoeTheBlacksmith13 8 ай бұрын
I think it might of been the crush washer for the drain bolt
@thebigguy8306 8 ай бұрын
Used to be a nice cycle. Looks like its been through a tornado. Great - engine out video. Special guest star 2Vinny upset over the Alpo monies this project is costing
@joelfildes5544 8 ай бұрын
Check the power valve was in the right way up…on the previous years,it could be put in upside down…I bought an 82 that was like that.Weird how it’s smashed that drive gear ?..!
@artlizarraga677 8 ай бұрын
Very good video love your dog 🐕!
@josephlemieux5981 8 ай бұрын
Love the content! Thanks for sharing!
@ladyjedi3D 8 ай бұрын
Geez!! Hahah😂ole Smokey! Hey Vinny! Your fan club is here!!he’s getting a little frosty faced😊🎉
@puanz605 8 ай бұрын
Love these videos I love working on atvs dirtbikes when I find them cheap. Wish there was a lot more cheap quads and dirtbikes around here.
@Tonerony 8 ай бұрын
11:34 power valve isn't rotating when you move the arm. The hole in the arm should have a flat spot that matches the flat spot on the power valve axle.
@deborahchesser7375 8 ай бұрын
Parts are so outrageous It’s unreal, looks like you’re having a blast. I’ve owned a lot of the bikes you’ve featured and watching the vids make me realize how much I miss trail riding. Thanks brother
@jessejarzabski5076 8 ай бұрын
thru yet but was thinking since no apparent leaks in coolant or oil, im betting its just low on compression and maybe there got water in the fuel cuz tht will make it smoke white as well, but most likely its just really worn and all the smoke is just excessive blow by and ive seen blueish smoke go from blue to whiteish with just the cocentration of more smoke, that blue tinge can dissipate and start to appear whiter simply due to the concentration of smoke particles and light not able to penetrate the cloud of smoke contributes to it not looking blue since it looks the most blueish when its a thinner, wispier type smoke where plenty of light can pass thru and somewhat illuminate the oil hydro carbons reflecting back appearing blueish
@greathornedowl3644 8 ай бұрын
Great video, always a learning moment, even if it is What not to buy.
@donaldblakley6796 8 ай бұрын
Nice work as always. I'm glad you were able to find that gear. I love that bike, can't wait for part 2 and the plastics cleaned up:)
@matthewstuckey665 8 ай бұрын
can't wait to see the next video, good work Joe
@Scotts23 8 ай бұрын
Great video once again thank you and vinnie just gets better one absolutely cool and beautiful 🐕 boy
@thediddly 7 ай бұрын
Hold your vernier perpendicular to the piston when using it. You should be using a micrometer anyway but seeing this is what you had at least use correct technique. A cheap and easy way to do a pressure/leak test on a 2T is to block up the intake and exhaust ports. A simple bit of rubber to go between the intake studs and a secure bung in the exhaust. Then with the side covers off you can do that. Similar to what Tinmans saws channel has done in the past. All 2Ts work in the same principle so something to learn from small engine mechanics. Good job on pulling it down to inspect for damage. Check the rest of the bearings in the engine by seeing how much endfloat say the clutch or idle gear has. If the move its time to strip it down or its just a time bomb
@craigmarek9395 8 ай бұрын
Glue a magnet to the back of you gauge
@larrywarner9314 8 ай бұрын
Average person would have that cylinder bored , but in reality i would have it hones to next size piston and do some port work and that 125 will run strong , i have two of those YZ 125s and they both run top notch
@edjacobson8480 8 ай бұрын
I Bought a 1997 Suzuki RM250 for $950 with the same problem. I replaced the right crank seal, and still burned transmission transmission oil. Used up spark plugs in 5 minutes, so I just sold it.
@edjacobson8480 8 ай бұрын
After watching this video, I wish I kept it.
@ddkessler14141 8 ай бұрын
based on my observation ... needs a top end rebuild and and right hand side crank seal replacement
@eugeneosbourne1670 8 ай бұрын
Joe seen that jump u did bro and the Vinsta is just a awesome little dog, my dog runs with my bike's they love it, keep the amazing videos coming bro
@leedimatteo5078 8 ай бұрын
the best 420 content on youtube!.
@michaelgarland579 8 ай бұрын
Dam this guy beast im learned so much that im definitely getting yz125
@ericpeterson9051 8 ай бұрын
When you first started draining oil something did fall in the drain pan seconds after you took the plug out
@craigrobbins9498 8 ай бұрын
17:00 the carbon and oil look to be leaking from the power valve seals.
@backwheelbandits2.0 8 ай бұрын
I love those projects complete ruin and bring it back to life💚
@larrywarner9314 8 ай бұрын
That orange o-ring tells me that someone has been in that top end before,
@mc9304 8 ай бұрын
Yamaha OEM small o rings are orange for the head
@gordocarbo 8 ай бұрын
Love air cooled 2 strokes of the late 70s and 80s Anyone know if you can even get a green tag in Ca for them anymore? Live in a place with great riding but not into 4 strokes
@edwardweisenburg6585 8 ай бұрын
Blowing seals can be problematic
@DblK-BMorphs 8 ай бұрын
Yo! That looks like the 85 from years ago that had water in the gas. I’ve been around a while haha.
@MikeRay1978 8 ай бұрын
You should load up all the bikes you don’t want and bring them to mid Ohio vintage days and sell them. You’d love it.
@andymann9861 8 ай бұрын
Great video, Joe! Looks like you dodged a bullet on this one.
@traviskinman3459 3 ай бұрын
I have a 86 yz250 and the stator is a reverse m27x1.0 and the flywheel/magneto look 200% different
@ACE-hv5sw 3 ай бұрын
I’ve always wondered how long these “rebuilds” last since piston/bore clearance, port chamfering or anything important is never done or at least never done on camera or mentioned.
@rianotrijaya246 8 ай бұрын
Yess, another never ending project 😂
@Hanky_Bannist8r 8 ай бұрын
As clean as the piston was, I'd say most of that smoke was burning coolant. Good job on splitting the cases and doing it correctly.
@rockman49er 8 ай бұрын
Hey Joe i just got one of those runleader temp gages that goes under the spark plug its a copper washer its on my 98 kx250 i haven't run it yet i was wondering if you know if it can cause problems putting the extra washer under the spark plug it kinda seems weird to me to do this to my bike should i find somewhere else to put instead of under the plug thanks in advance joe 😀
@2vintageDeamonFan 8 ай бұрын
When ur taking off that power valve rod make sure you put a Allen key or screw driver in the little slot of your gunna wreck the power valve rod that’s why there’s that slot there so you don’t wreck it
@grabir01 8 ай бұрын
As soon as he gets it started going WOT!!! Cringe!!!!
@coyotiess 8 ай бұрын
I hope you got a great power washer!
@2vintageDeamonFan 8 ай бұрын
Great video as always
@davidr6585 8 ай бұрын
Flounder: "Oh Goodie!" Joe gets a true trail ridin' junk yard dog, rode hard, tho'd out wet and leaned up against the back of the barn for nye on thirty years... and it's only 10 seconds into the video! This promises to be a good'un!
@Billy-Allen 8 ай бұрын
Love these videos man, great work! Keep em coming!
@crystaljenkins3564 5 ай бұрын
Great videos you do a great job buddy
@Tron1731 8 ай бұрын
When you kicked it over I was like no ring someone rude the tires of that bike 100,000 miles for real
@peteraitken6494 8 ай бұрын
Hi joe good tear down bet your glad you did could have been a lot worse cool bike though will be a nice machine when rebuilt and cleaned up take care and all the best ,the vinster is just a cool dog man 👍👌🔧🔧🔧🦴🦴🐾🐾❤️
@bryanmeier272xp8 8 ай бұрын
didn't look to major other the rust in that cylinder wonder if someone had straight water in it at one time and gasket leaked and got in the jug and bike sat for a long time then someone put antifreeze in it Lader really not bad for 1980s 2 stroke and to me alot more easier to work on then a 4 stroke
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