This Is Why You Shouldn't Buy a $400 Dirt Bike
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- เผยแพร่เมื่อ 17 พ.ย. 2024
- I buy a 1986 Kawasaki kx125 dirt bike for $400. #Kawasaki, #DirtBike, #Fix,
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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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2 strokes are great! My first 2 stroke was 1975 Kawasaki KX125. I’m currently 64 and still riding dirt bikes . Love your videos Joe.
Love the smell of a two stroke first thing in the morning! It usually means a Good Day is about to happen! LOL!
Is that the k x one twenty five with the rotary valve
Hey just wanna say I’m glad I found your channel. I got meningitis a few months ago and spent a few days in the hospital and then was stuck on the couch for about a month. Really enjoyed watching your videos to the point when I got better I pulled my quad out of the barn where it sat for 8 years. So far I’ve rebuilt the top end, new cv axles, rotors, brake calipers and the usual maintenance. Really enjoy wrenching on it as I’ve had it for about 20 years and I was stir crazy from sitting on the couch with an IV in my arm. A lot of these things I wouldn’t have attempted without watching your videos and learning and seeing that I could do them myself. Keep it up man. Thanks!
Bearing packer is so much easier and cleaner 😊also not the way to hand pack a bearing you hold it vertical and push the grease in the Gap between the race and bearing cage until it comes out the other side 😊
Gotta love how 2 strokes just fire right up, unlike older 4 strokes that break your leg trying to get them started.
Yeah they are a little easier to rebuild and start
@@2vintage yo i know this is random but shloud i buy a 1991 yz125 800 euro dosent give spark ?
@@filiphlavatovic3266I wouldn’t go higher than 500-600, a new ignition will run you $200-$300
Lol. I am not even going to get involved in this 2 stroke vs 4 stroke debate. Except to say that I prefer 4 strokes because they don't sound like an angry hornet. Lol.
@@filiphlavatovic3266 You gotta look that bike over becous no spark can be a scam for a bad engine and they just say that there is no spark
Alright! Thank u sir! These videos make my shift at work go by much quicker. Easy to zone out and watch/learn as you fix bikes, rather than be all stressed out with work. It does get annoying when the passengers start screaming and the stewardess comes to the cockpit to check on me. 😂😂😂😂😂
Kiddin'! Relax.
(Im a bus driver) 😂
🤔Watched Ol' Joe while taking an online ethics course, is that right?
Yeah it needed a lot but that's why I watch your channel. Love to see these vintage bikes get a new lease on life. Thanks again for your time today and enjoy the rest of your week.
I like to run 32:1 on my bikes, especially on break in, fouled plug is always cheaper than a rebuild. I like using iridium plugs as well. I've had them last up to 7 yrs. I love your videos though man, great content as always!
I had a 1987 KX 125 throughout the 90's. It was a great bike and generally super easy to work on.
do you know if the 87 kmx shares the same motor? it looks very simular
@@rajupeussi69 From what I can tell, they’re identical.
@@jtdub-wanders ya thanks i bought one a couple months ago it runs good but had missing parts
@@rajupeussi69 Nice! It's a great bike. I had many years of fun riding it.
What the hell?? Softens hands while you do dishes...
Joe needs to setup a go fund me for a parts washer and sandblaster!
He needs them, this looked like a barnyard overhaul with too much dirt and old grease
Doesn't need them
He wouldn’t use them……..
@@tonyking3125he doesn't need them
You need to live your life .
125’s are usually clapped out top to bottom, including the crank. They live their lives at 2 speeds, wide open and off. So plan on a 100% rebuild with them.
What about 250s? I agree on the 125s though
@@randomguy1807any motocross bike is usually thrashed that’s true it’s just that 125’s being such a small displacement are always wide open when being ridden. The bigger bikes are usually in better shape because few people can hold them wide open, at least not for long lol.
Truth!
Great video as always. However, you should watch several videos on how to change steering wheel bearings, and it is really important to change the bearing race.
If the cage is worn out, the race is too....NEVER replace only one side...always replace as a set....
@@mrpeegeepee2682 I never seen that, bearing parts don't interchange due to close tolerances
Man, nothing better than the sound of a late 80's/early 90's two stroke and smelling some early morning Klotz exhaust fumed air at the race track!!! OHHH if I could only go back to those days....
fix the throttle cable adjuster above the carb soon, or it'll stick wide open at the worst moment. Had a 1984 and a 1985 KX 125 back in the day....if you can find a 1984 version, get it, as the motor was incredible.
Good looking cycle, now let's tear it apart. Again your patience and knowledge overcome obstacles
Been watching this guy for YEARS. Never gets old. I love how he's got a wide array of projects AND he finishes them (unlike me).
Mr. Vintage, it makes a difference in W.O.T. pulls for a small motor bike to have a dent free expansion chamber. You will loose revs and peak horses 🐎 due to pulses in exhaust being altered by bumps in the pipe. Its very easy to use compressed air and an oxy/acetylene torch to pop them right out. About 60 p.s.i. and heat the dents with a "cutting " tip just until it glows red enough to get soft. Need some block off plugs and a main block off with a schrader valve and psi guage.
Joe, you can buy a gasket dissolving liquid, in a spray can from any automotive and some hardware stores. Really makes the job easier and much less labor intensive.
Fuel filter is installed backwards. I always say if no arrow, fuel first, then filter.
Nothing better than the sound of a 2-stroke power band. She sounds great man, good work!
When you do the first start on your bikes please help us understand the adjustments you are doing to get them to idle smoothly. Your channel is fantastic and very much appreciated.
This dude can fix anything, I love his attitude and passion for fixing bikes. His wife is a beautiful human being also.
Vinnie must have forgotten to remind Joe to grab more mechanics gloves before getting into the checkout line. 😜🛠
😂worked in dentistry now a chemistry lab, SMH at PPE shortcomings
I, in my earlier years I use to work for a "company" that use to send all broken Toro two stroke lawn mowers to us with bent cranks. The people using them did not want to mow lawns. They would hit pipes in the ground on purpose. I actually pressed them apart and straightened the crank. I had a small press and a hammer.
Now THIS one starts great! Your knee needed a break.
And, crazily, that bike in that running condition, around me in NC, would still sell for $2500. Ragged out early 2000's CR125's that don't run sell for over $2000 around me.
The saving grace is the fact that the older bikes had steel liners. I dont care for Nikasil cylinders. Bought a 400 dollar bike and until it was done i spent nearly 2k. 400 for cylinder repair. 400 for complete bottom end kit just for starters.
Gd job as usual.
I see a lot of videos where people restore these to look like new again. I keep hoping you pick one up to rebuild and make it look new again. Would be fun to watch =)
Keep up the great work!
Joe for the most part you do good work. When you change bearings out put the new races in with new bearings.
Couldn't agree more the races are matched to the bearings and why wouldn't you change them if your at that stage, they have probably been in there for decades as not many people bother changing them!
I love your content and have learnt so much from you, im trying to start some of my own projects now because of you. keep up the great work
Im glad you went away from the carbon fiber reeds, they chip easier than the fiberglass ones and scar up the cylinder faster. Especially with a bike that is getting harder to find parts for.
Carbon fiber is 20 times stronger than fiberglass.. no problems with them in my Banshee
@@speedfreak8200 yeap way better than those Boyesen dual stage gimmick
try when packing bearings , to put the grease in the middle of the hand n get the bearing with the large side down push into the grease n scraping the grease n watch it fill the bearing.
Joe you have the fuel filter in backwards should flow on the outside then go out the inside.
Parts for this model is very assessable. They are mostly interchange able with the Kawasaki KMX125, the power valve standard also doesn't open fully if you set the dots to how they are oem. You'll need to do it yourself and check otherwise you'll have no power lol, manifold reeds clutch pvs all same as kmx
I’d invest in a leak down tester or buy the parts at a hardware store. It’s cheap insurance to spot air leaks.
Nice build! Now get the ignition system up and running on the HUSABERG......
The manufacturers sold us all out by forcing the engine change. Environmental issues was a great excuse for "We're going to sell a lot more parts with 4 strokes".
Older 2 strokes are still out there, racing and riding on practice tracks every week. We still have a pair of '00 CR250's in addition to a '24 YZ250. The ease and lower cost of maintenance (in addition to the noise levels) will mean that we'll gladly continue to ride and enjoy our 2 strokes until the day we stop riding.
A single diesel container ship or jumbo airplane will polute more in 12 hours than all two stroke motorcycles in the world in a year
Wow. That bike is all top end. The power is always there. Clean little bike.
Ripping out on the land with a fresh 2 stroke and you can hear the echoes off the mountains, awesome
🤔mountains in central Wisconsin? Maybe hills
and so much for the break-in
37:27 Sure did start up a LOT faster than that Suzuki you were working on. LOL
Lol just a little
My thoughts exactly 💯.
@MR-puffnstuff easy on suzuki lol rmz 250 and 500 vinsion atv couple of the best machines ever owned.
Hi Jo, great rebuilt that turned out so well. I did not see you change the bearing cups in the frame for the steering. Imagine you just did not film it.
I'm surprised it really ran at all with the main swimming in the bowl 😮
if you need kx parts I have tons of 85-99 kx kdx parts 80cc through 250cc and yes I have that shaft probable several of them....jeff...
This head you installed and put the 2 studs in with the frozen nuts .
If when you took them out they were bottomed out I the seat when you tighten them they can bottom out giving a false touqe reading because it's the locked up nut and bottomed out stud giving the read not the compression of all the components would have been better safer replace the studs, crush washers and nut to get a true reading. I have done it and had head gasket go twice on the stud I did it with due to this issue. Thanks
Oh yes. and the new waterpump shaft put in dry without replacing the bearing and seal and splitting the new steering stem bearings keeping the old rusty outer races in the steering tube. Bearings that come apart cannot be put toghether with parts from a different bearing even if they're the same brand, let alone with unknown rusty parts. These are precision parts matched upon fabrication.
I understant working to a budget but there are limits, right?
Not to mention that the bike is running like a sick dog, it's very audible I'm not sure why people don't point this out, maybe peoples knowledge is very low.
pretty soon it will fail, so lean that it is.
I had a 1984 KX 125. I loved that bike! Ran like a champ. I broke the frame on it once though, but I am probably a bit big for it. At the time I was 175lbs.
That bike will sell all day long for 2k plus on facebook market place! You made more than your money back! Nice job!
@2vintage . Joe I happened to notice that where the cable enters the top of the carb, there is no rubber boot attached, for what it cost and to eliminate any chance of air being drawn in at that point, I'd say it's worth while replacing ....
other than that, Good Job..
just another one
i still have my 87 kdx200 I paid $300 for lol parts are definatly getting hard to find. no idea how much money i put into it. had to put crank seals, piston, reeds, tires, chain, sprockets, etc over the years. best thing i did to it was cut open the expansion chamber and gut the fiberglass out of it, and DG silencer really woke it up
Great job in hitting high speed before you do the heat cycles, and I'm not talking about reving it out on first start up.
Great old bikes. Pretty fast. My old ass would love to find another one to play with. Good job saving another old screaming machine dude. Looks awesome as well. Thanks
I left school in 86 lol thanks for making me feel old 😂😂😂😂😂
😂welcome to my world, you were born the year I graduated - oh I guess you are old enough to drive
For coolent if the impeller shaft breaks you can rig up a $20 12 volt pump next to the radiator
A quick way to remove old gasket material: I figured this out for my production, had to be fast.
1st, you have to scrape off all the old gasket that is high. I use a 6" scale edge that is a pretty thick/rigid scale, but any kind of sharper scraper can work well. The object of that is to get the gasket residue as close to the aluminum as you can, (under .001" thick is pretty easy to get with a good edge), for the next process to clean it up easily.
2nd, I use a air powered 90 degree little die grinder, with a 3M scotch-brite wheel on it (about 2" in diameter), to clean the surface. If the rest of the gasket residue is thin enough, it will clean off quickly, and you can maintain the flat surface very well, (may remove .0001", but that is still very flat). If the gasket residue does not come off quickly, scrape it again, or the schotch-brite wheel will remove more aluminum around the high spot. The finish result is a perfect surface for a new gasket.
The cloth backing on the little scotch-brite wheels is the same diameter as the OD of the scotch-brite. I do have a smaller diameter rubber mandrel, and I cut off the backing to a slightly smaller diameter, which lets the scotch-brite reach tighter 90 degree corners. You will save a lot of time, and have a perfect surface ready to build. Cleaning it up that way also allows you to find any dents or scratches in the flat gasket surface, so you can stone off the dents, and hit it with the scotch-brite wheel again for the perfect finish.
Here are the scotch-brite (not the name of these though), 2" disks that I use: "SA standard abrasives" quick change buff and blend GP disk TSM. 2" A fine/50.8mm A fine. Barcode number 840313. quantity of 50.
I use 1 for about every 4 engine tear downs, and then they start to miss spots as the edge breaks down. Lower rpm's is better the a fresh disk to extend that life. But I only have 4 gasket surfaces to clean. Cases, cylinder base, intake and exhaust.
Man. Over the past 30 years Iv purchased so many dirt bikes from between 50-400$. You could part that out and make over a grand. Huh.
Be stupid to part it out
what video would that make?
@@USMichigunPrepperI don’t think he is anything close to a narcissist or a perfectionist.
@@JoeTheBlacksmith13definitely on the opposite spectrum of perfectionist. 😂
@@bradley7723 I think he’s somewhere in the middle. Pretty practical. Saves a lot of time by not doing 3verything perfectly, yet does a pretty darn good job.
Really like ur videos.
Im so looking forward to see that yellow yz up n running again.i had one 35 years ago white and red one.
It was a really cool bike when i was 15 years old
Ordering parts as we speak
I was about to buy an exactly $400 dirtbike years ago. I didn’t know enough mechanically to really determine if it was ok. It just looked put together from 5 different bikes. I decided to just pass on it.
I had a 1985 when I was a teenager....man I miss that bike
You miss being a teenager
Pop's !
48:34 Take a look at the throttle cable, how it’s coming out of the top of carb.
Haaaaa
I love this channel so much! Constantly pumping out the videos and so consistent with revisiting projects even if there is some time between episodes. So satisfying to see stuff finished all your hard work is very much appreciated. Another awesome bike saved!
Great work Joe, the title will keep more available for us who have the time and energy to fix them
You should use grease on gaskets instead of gasket maker. The grease helps the gasket to seal and it also makes removing it next time a 1000 times easier!!!!
Joe all you need to know is you're doing great work man. Always enjoyable watching you bring these things back from the dead.
Nothin like the sound and smell of a 2 stroke !
Love that Klotz . Lol
LMAO!! For some reason the quick throttle twisting after start reminds me of Zip-Ties and Bias Plies throttle dumps!! MINT!! Great job! CHEERS!
I enjoy every video you put out Joe, thanks for the great content.
Get...a....parts...washer.....LOL! That impeller shaft, I normally would just go to my lathe and turn a new shaft and friction fit the gear. No biggie - you got shafted (pun intended) on the price. That bike is also a money pit. Good video all around as usual.
Something happened to my comment from earlier! Appreciate all the great videos man!
Hey Joe, a fine wire wheel on a drill makes short work of removing old gasket. Lightly grease both sides of paper gaskets, and they won't stick/tear, and in a pinch, could be used again. Love the machines you drag home. Give Vinnie a pat on the head for me
Never use a wire wheel on aluminum.
@NightStalkers-hx3dq have been forever bud, I said a FINE wire wheel with a low RPM hand drill. If I didn't get good results, I wouldn't have been doing it all these years. Or recommend it. Have a great day 😀
@@speedfreak8200 You do you. I'll do me. It's not a good idea. That's the voice of 45 years experience.
@NightStalkers-hx3dq I'm almost 70, but apparently, you've never seen the vast array of wire wheels .... the ones I use do not scratch non ferrous metal
@@speedfreak8200 Didn't say it can't be done. I have done it. It's a bad idea. Somebody without the experience to do it right will try it, get away with it, get complacent, then do it somewhere they shouldn't. You need to argue about that too?
Sounds nice when power bands come in joe very raspy I like my rd 350 LC it’s quite the same splutters a bit till at 5 grand then she wants you to stare a the clouds nice video as usual joe keep up the good work mate 👍
I just use a Dremel and a fine wire wheel (or scotch brite wheel) to remove the old gasket material ... super quick and smooth as butter ... oh yeah, and I clean the cylinder all the way!
i have owned a 1982 KDX 250, 1984 IT250 and a 1998 KTM 380MXC im about to hit 40 just got divorced so im getting myself a 2022 WR450F as a treat lol, your videos are great, and im spinning out bike are getting fuel injected these days lol great for me to putt around grandpa style in the bush and not foul plugs or waste fuel hahahahah
Wow this guy is crazy busy new content every day seems like . ❤
Love to see you pick up a kx125 A6 1980.. keep up the great work. Watch all your videos over and over.
A little advice is to watch a professional
Like the content
Just curious .
Did you use ,
silicate free engine coolant ?
And , why didn't you replace those steering stem races ?
Love your videos my friend. Was just thinking have you ever had shrapnel from exhaust fly out and hit your car when you rev up?
You NEVER leave the old bearing races in the steering head (or anywhere else for that matter) and install the new bearings on top of them. They're guaranteed to have abnormal wear on them, which will result in the new bearings being ruined in no time. Plus, you're packing the bearings incorrectly. The proper way is to first put a large glob of grease into the center of your palm then with your other hand put your index and middle fingers through the bearing, then with the larger diameter end of the bearing pointing downwards bring the rollers down on top of the grease and force the grease through the rollers themselves. Once you see the grease exiting the top of the rollers, rotate the bearing in either direction, then repeat until you get to where you started. Once all of the rollers have grease exiting through the top, you're finished.
Have you considered using ROLOC discs for cleaning off gaskets, they work very well
One of my favorite bikes, was a 1994 yz250, i bought for $600.
Rode it for years.
Even put a wr transmission in it for higher top speed for those seldom moments of road riding to connect trails or high speed straights.
Unfortunately, it finally blew up on me in a valley. Literally had to use another dirtbike with a tiedown strap help pulling it out. The 3 of us probably took almost 1:30hr to get it out.
The power valve blew up. So i rebuilt it.
When I took it on a test ride is was smoking like crazy.
Turns out i bent the crank.
Almost not noticeable with the naked eye.
The crank seal noticed it right away.
I couldn't find a new crank.
Ended up buying a new ktm. I hated it. The cost was ridiculous and I never felt comfortable on it.
I still have both, but I dont ride anymore.
Also found a used crank on ebay. Never installed it though.
I don’t think I’ve ever seen a bottom steering bearing that just slid right off the stem. I think there’s some camera trickery going on.
Wow awesome job again outstanding work & it started quickly as well 👍🏻
I had a brand-new 1985.. loved it... all the Kawasaki bikes back then ran 32/1 mixture not 40/1
Hey man, that’s a pretty nice bike and I love watching your videos and your the reason why I learned and started working on small engines 3 years ago, I got a pretty rare 2013 Arctic Cat XC 450i fuel injected and my question is what coolant do you use for the ones that have a radiator? If you got a Facebook and if I have any problems with my bike, I’ll feel free to contact you on there, so keep up the good work 🤟‼️
10:20 “tune in, Tokyo”
Joe - let’s build a low table top out there, with the MiniDozier, to air over (safely - since you’re solo) please
Imagine the abuse that poor bike has been through. I wouldn't bother with it if you paid me.
brand new top end! Look at the abuse its getting on start up!
Somebody's gotta save it
I miss the 2000ish year 2strokes for 200 bucks, just did an 03 yz125 I got for 250 put a $50 rod kit in it and good to go has the restyle kit and 144 big bore was a great deal used to find them like that all the time now it's hard to find a actual good deal
No piston to cylinder wall clearance measurements + SeizeCo piston = piston stickage at any minor overheat situation!!!
I was wondering why you didn’t use a layer of gasket maker on the reed cover and the water pump cover? I’m NOT a mechanic and it’s just something I noticed.
Just a question , do you keep most of the bikes you fix ?
Or do you flick them off once you have got them running sweet ?
Watching from New Zealand and really enjoying your content.
Thanks
Throttle cable layed over on top of carb. Needs a " bendy "
That's a pretty sweet bike. It'll make a great first bike for some kid. $200 for the impeller shaft though... I honestly would have just tried to weld the impeller to the shaft and hope it never broke again. That's an expensive part. Or maybe u need a lathe or a CNC machine to just turn a new shaft and thread it
Jesus Christ $200?!😬 I could've made that part with an off the shelf spur gear and 1/2" bar stock for a tenth of that price.
Its not that you shouldn't buy a 400 dollar bike, but not buy a 38 year old bike and expect parts are easy to find! Yep, I have had older stuff and the difference is having to wait for parts. In the case of the water pump.... well its just not produced so you have to find someone with old stock of good used parts. The good news is it does have a power valve. Nice work on getting it going.
Love single sided radiator KX 125's.
It's always so satisfying and exciting on the first start to see all your hard work breath life into your machine,......Stay Up, Hard, and Healthy brother.....,.🔥🔥❤️👍🏽💯
Throttle cable is jammed under the brake line, lucky it didn’t stick on you!
You are a pretty good motorcycle mechanic. But when you make mistakes, they're usually avoidable ones. You didn't pack the grease in those bearings correctly. Buy an inexpensive grease packing tool or learn how to correctly do it. It takes a few minutes to correctly pack them. I'm not being an ass, just saying! I'm sure you sell these bikes and improperly greased bearings will wear quickly. I know you don't want to create a future issue for a customer. But keep the vids coming, I've learned a few things watching them. 👍
A fresh top end has a certain sound for a little while.
Like you can hear each explosion just a little better.
wonderful video Joe buddy i have learn allot about fixing motorcycle from ever since I start too watch your video bud, and what about the other video about the seller who had lied to you about the dirk bike is there a part 2 to restore it when the power valve was missing and allots off parts were missing is there any restoration about it
Joe, I worry about all the strong chemical additives that go into high-spec grease which you then work into the skin on your bare hands. Wouldn’t gloves be a good idea, being as you expose your hands to this stuff every day?
Always a great day when 2vintage uploads a new video!
Nice job there Joe Joe... Don't listen to the negative comments.