1985 Yamaha Yz80 Dirt Bike Rebuilt. Will It Run?
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- čas přidán 28. 04. 2022
- I buy a cheap Yamaha Yz80 dirt bike and rebuild it. Will it run and drive after rebuild? #Yamaha, #DirtBike, #Rare,
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The crank rod for this bike was discontinued. I found the last one for sale in the U.S. and then had it professionally rebuilt which took more than 2 weeks. That's why this bike took so long to rebuild. Sorry for the long wait on this one! Hopefully you guys enjoy the video!
Brother it don’t matter what your rebuilding I enjoy every video, your very knowledgeable and inspiring! Love the videos man
I love te yz’s and your vids😍
You do nice work man !!
Love it bro keep the 2 stroke genre coming
Pro-x do a rod kit for the '85.
3:00 I'd really recommend buying a seal puller. They are dirt cheap and you would have had that seal out in seconds without risking damage to the casing mating surfaces. They work good on fork seals too, not just in casings.
As I said before, these little bikes are especially interesting because I had some good times with my son on one. Best decision I ever made. That was many years ago when parts were plentiful. Shame about your parts problems with this one. Thanks again for your time today and enjoy your weekend.
So much for bedding the rings in before giving it the beans! Still, it's good to see it rebuilt rather than broken for parts.
I took it pretty easy for the first 5 mins lol
Joe Joe doesn't know how to break an Engine at all !!
Keep doing what you're doing man. Keep learning and bringing these older machines back to life. Love to see it. You remind me of myself and my good friend. We ran a shop a long while back (90s through 00s) and I've had the pleasure of working on about 99% of the bikes you've done on your channel... and many others. Watching your vids brings back great memories. I still wrench and ride, but the wrenching part is only maintenance now on the few machines I own... and I guess vicariously through channels like yours.
Had a flashback when you turned into the drive at the end of the test ride coming off the road. I was about 11 at the time and did pretty much the same thing on my 1978 YZ 80 and lost the front end on the blacktop driveway with fresh sealer on it. Good lesson about knobbies on slick surfaces.
quick tip for removing old crappy crank seals.. Drill in a wood screw into it and rip it out with some vice grips.
This was the first dirtbike i ever got to see close up when I was a kid. They really do rip for an 80! Remember that movie Dirtbike kid? The kid from A Christmas Story gets a Yamaha another kid throws away. puts lights on it, fixes it up and it comes to life lol
This is awesome. Back in the day, I had an '84 YZ 80. Very similar to yours, but colors were yellow and black that year. Seeing this brings back some great memories. Nice job on getting this bike back to running. Thanks for posting.
I used to own a 1988 yz80 and that thing was a blast especially when the powerband kicked in. I hated to get rid of it but hopefully I'll be able to find another just to play around on.
Moterbike Mike here, Me too yellow 84
Again thanks man , I continue to learn more and more about small motors from every video,,keep the videos coming 😊😁
I really enjoy watching you work on the engines of these machines . I build vintage scooters up , but the engines are beyond me . I'm learning gradually . Thanks so much .
I had one of these 1985 yz 80s back in the day. Definitely a riper. I actually added a tooth on the front sprocket over stock because it had enough power to easily handle the taller ratio
86 yz 80 my first bike.
Air fuel screw is a little lean, it's got that lean bumble sound.
I had a buddy get that bike, brand new in 85. It was cherry, and he took care of it. He joined the navy, went to fight for Cheney oil in the middle east..not sure if he made it back, but the elite mans oil is secure....
Man ur top of these rebuilds like nobody business keep it up im learning a lot so i wont have to have anyone else work on my stuff u teach good
He teaches how Not to do it. I laugh soooo hard at this guy.experienced mechanics bust his balls.dont ever hit a bearing with steel Bro. they're pressed fit bearing's not hammer Time!!
I've been absolutely loving your vids lately man. I just started youtube-ing seriously in the last year or so and your style + content reminds me a lot of my own, but you actually have viewers :p Keep on wrenching!
Love seeing how many old units you save🤙 keep it up man!
I love 80s they always surprise me on how fast they are ! Good job saving this one !
I bought a 1997 YZ80 frame and am putting a YZ125 engine in it and just watching this helped show me more about this bike and I want to thank you!
Clutch is definitely slipping from 3rd gear on. Might want to tighten it up before you have to put a new clutch in it lol. Otherwise great video! If parts were more available I would def. Consider buying an old yz80. Might have to get me the yz85 since parts are more available. Such fun bikes! Keep up the awesome content bro!
Yeah i thought i could hear that
Ya it’s definitely slipping bad.
There is no tightening it up, time for new friction plates at least, maybe steel plates too.
Well done on your rebuild. You mentioned your front sprocket was worn there's a chance it is not your clutch plates your front sprocket could be just spinning/sleeping
I have a 2000 yz80 and a 2006 yz85. I already rebuilt the whole motor for the 85 and the frame is getting powder coated. The yz80 I cleaned up and replaced plastics. This is my son's beater bike while we are rebuilding the 85. Some parts are even a pain to get for the 2000
these little 2-cycles are so much fun. My daughter has a Suzuki LT80 quad, almost a pocket 4-wheeler, and it is stupid fast.
I love LT80’s! They will surprise you. They haul an adult around like nobody’s business!
@@lorollinls yes they will! I took my Yamaha Warrior, the LT 80 and and one of my best friends up to the farm a couple years ago. He is 6'2" tall, and the image of him on that little quad reminds me of Artie Johnson, on Laugh In, on that tricycle. He was flying across the property, hitting burms and flying through the air, his knees almost in his face, screaming like a little girl. I'd give anything now to have had a video of that. Just remembering it has me in the floor in stitches.
Man I love the sound of those 80cc bikes, they're so crisp
My first bike was a 1989 yz80... good memories. you're doing great, man. Love your vids
11yr old me loved/loves this bike. the early-mid ‘90s stock YZ80s were dogs, but they did look super cool. nice work, again
I would like to have an old 80 yz but that last connecting rod and no cranks really puts me off. Being old it might last the rest of my days but would be fun. Looked like over 70 on the highway and more than 60 down the field, enough to bust your butt real good. It needed the rear suspension hardened up for your weight.
You should find a cheap oven for your garage. Use that to heat the cases. That's what I do anyway. Works great
Those little YZs are super quick and lots of power.
I bought that bike for my lil brother back in 1985 . It was 900 buck . What a screamer that was.
my first bike was a 1990 yz85. That bike brings back fond memories.
I had an 89 yz80 when i was 13 and this brings back some memories.
In 1999, I bought a brand new kx 80, I was 17, my little buddy got 1 of these to ride with me. The sound of that 3ngine brings back alot of memories. My 99 kx 80 was smooth and fast, but the Yz 80 was nasty! The power band kicks in so fast, it felt so weird after riding the 99 kx. Which was a little faster on top end I thi k I got the kx 80 to go about 60mph if I remember correctly. Cool video, thanks for Sharing!
Our son had an 88 back in the day. Never had to do anything to it. Many trophies. It was very loud as well. Probably infuriated the neighbors haha. Great vid.
I love rebuilding 2 stroke motors, relaxing
This was the first bike I ever owned brings back good memories!
Hey there senior, ya'll need a slide hammer seal puller. With a good quality slide hammer they will also remove bearings and bushings.
Sounds excellent. Nothing like the sound of a 2 cycle !! Nice job !!
Clutch is slipping a bit and idle is lil high brother. Two small adjustments and it’s ready.
Quick tip for putting in cranks or really anything with bearings or important parts like that. When you freeze them put some WD40 on the bearings etc so when the part unthaws the condensation doesn’t cause rust. Love the vids keep up the good work🤍
That's a good idea! Not being a smart ass but the word you want is just - thaw. The "un" is unnecessary. My wife says unthaw all the time and it makes me laugh
My fricken childhood. My buddy had a 2001 Yz 80 and I had this same exact bike. Brought a huge smile to my face man the sound.
had me for a second there.... you know exactly what your doing..... well done buddy
It's so cool how all the part work in sync with each other
Sounds like clutch slipping from 3rd and up. Great video anyways.
Epoxi is a risky decision for such an important role and the original cause that killed the engine. It will tend to fail over time. A mechanical interference solution would be better. Keep up the 2t resurrection!
shouldnt there be a slot for the propellor to grab the shaft?
I have great memories ripping around my YZ. Cool to hear that sound again.
15:08 you're going to fry that engine again because of an 80 dollars part. 22W-12450-00 is the p/n for that impeller.
I was thinking the same thing. 🤦♂️
Haha you looked like a giant on this joe great fix mate cracking little bike and quite nippy for what it is take care man great content 🔧🔧👍👌🔧
As always, good video!
Hey man this yz80 brings back memories i used to have one but got stolen off me they are one of the coolest dirt bikes hey have that unique sound, really enjoy watching the rebuilds, have you got plans for any inline 4 vintage rebuilds or tunes?
It is like you are riding your first 2 stroke. I've ridden a lot (75-100) of 2 stroke bikes both on and off road and the YZ80 was close to the most impressive for powerband. The Maico 490 was also a scary ass arm jerker on powerband but the Yamaha V4 RZV500R is just completely insane and wants to rip your hands off the hand grips.
My H2 750 was a handful of bike, still is. Kept up with my stock CBX no problem.
The TZ750 will give you a similar feeling lol. I got the chance to race one in road race trim at Summit Point. Wish I had one today. Always have loved 2 strokes.
Sounds good! Great job.
I had one exactly like this that was completely rebuilt , it was a monster and outran most bigger bikes with an ease
That thing sounded awesome! Think you got it to at least 60, thanks for a great video !
You need to invest in a seal puller..you do enough to make it worth it...def one of my fav channels..you put out more content than just about anyone... Love it
And after I said that I read comments after the video lol 👍
I always use gasket maker or case sealant on the intake gaskets on both sides on all 2 strokes, because with out it, it will leak cause it to run lean.. or leaner than you thought. If you leak down test the motor it will tell you if your intake, cases, cylinder to cases, and head are leaking/ not holding the pressure it needs to lube bottom of the crank case
1980's yz's were crazy fast and tough has dirt. loved every minute riding them.
This is the perfect candidate for a nice build joe! Ide like to see a fmf fatty or even a gold series. Maybe some vforce 3 reeds, a little port and polish work. Maybe a 100cc kit. Oh yeah
Get yourself a seal puller, makes that job MUCH easier. Also, it kills me that you don't clean up those parts before putting new parts in. I would be worried about dirt getting into the new parts. It is just so much nicer to work with clean parts. Put that case in the oven at 200 degrees for 10 minutes and that frozen bearing will fall into place.
The cleaning part is so true... I always clean stuff up and if it's torn apart that much I sometimes paint stuff
He's a hack....
@@johncoleman2495 he sabotaging every engine he builds so they'll come back and make more unhonest money.itll bite him in long run watch and see
Nice job on the re build 💯
That’s a really a nice bike I love the way u rebuild it it’s lovely
Yes it does sound fantastic, nice job brother! Be safe :)
Freaking ripper!! Love yz 80s!! Great build as usual!!
My dad used to have that same bike bored 3rd over to 110ccs that thing was a beast
Keep them coming Joe 👍🏻🤟🏻
I’d be hyped to see you get a sand blaster or vapor blaster to really clean up the parts
Bro you really know your way around bikes👍
My first ever proper dirt bike was this exact model , brings back some cool memory’s 👌🇬🇧
Use map gas. Burns hotter than the blue tank. A tad more heat= tad more expansion = less hammering on bearing
Great vid, sweet little bike.
Its great you take the time to do shit right, find the correct parts at any cost..these parts are coming super hard to find more each an every day
Yes they are!
Great video, waiting for more scooter rebuilds
I really hope to see more videos on this bike. Great work please make more improvements perhaps mods/fixes i absolutely love this bike
I love watching your vids bro there so awesome this is the stuff I like to do
Awesome video 👍
I had that exact bike as a kid. It sounds like your clutch is slipping, fix that up and it will pull harder. Also that exhaust leak where the pipe meets the head was a common problem, I can see yours leaking from the smoke when you were in the garage, that will take a little power away too. There were some copper crush gaskets that would seal that up for a while but they will eventually wear through, and I'm not sure where you would buy them these days. High temp sealant might work for a while.
This bike brings back memories. These smaller engines like 32:1 mixture better.
My favourite bikes to restore. Thanks for sharing. I want get the N one day
I love these wheelie machines good job
I'm sure there isn't any way to "glue" a water pump together...js
Glad to see you get that old bike going...
DO ANOTHER VIDEO ON THE WORST ATV EVERY PLEASEEE!!! I LOVE IT AND I WANT TO SEE IT MOVING!
The first dirtbike I was on was a 1986 YZ80 yellow and black one. it scared the crap out of me it was so fast! once that power band kicked in.. might have been an 85.. i can't hardly remember? i was 11, and I'm like almost 40 now.. time fly's! and I also had an 84 too with the metal gas tank.. it was gave to me.. and just needed a carburetor. never could get it running.. and gave it back to my friends for parts.. for the other yellow and black one.
You see how people treated each other back then.. that's true friendship. we just gave each other stuff! it wasn't ever about money... it was about the fun of having a dirtbike. and especially to keep one running! lol
Yamaha 80 cool little dirt bike runs smoothly now great bike macnic
You've done a good job there, well done :)
I has a 1986 YZ80 back in the day. It was a fun bike!
30:47 people that aren’t familiar with em would be surprised how much power they have. I’ve had several back when i was little. But you can have a good time on those little bitty bikes. In ways they are more fun than a big bike cause they have plenty of power and they have no weight so you can fling em around anyway you want just about.
Don't you hear the clutch slipping?
Turn down the idle too.
that is a nice bike. idk if i like the red and white better or the yellow and black. i like them both. i like how they changed it up over the years from yellow and black to red and white and then the blue and white still to this day.
The bike from The Dirt Bike Kid movie!!My fav growing up.
Keep up the good work but tho brother ur helping alot of ppl learn an understand
Good video Amigo...saludos de Argentina me encanta todo lo que compartes..
What a great little bike.
Sounds sweet too. 👌
Woooow this takes me back
great job lad well done
Wonder how much hp that little over-bored 80cc engine puts out? I'd guess no more than 17-18 but I could be wrong. These 2 stroke mini bikes are high enough strung though, to where they can put a hurting on even a grown up if not respected! Great work bringing this engine back from the dead!
Stock, the yz80 was making 16hp in 1985.
great job mister!
that water pump will be the end of that bike. The epoxy will fail, 100% sure of it. Epoxy is way over used and trusted for some reason. need to make a keyway to be safe.
Might be just me, but I think the clutch was slipping , hard to tell in the video. You need 1/8th of an inch free play in your cable at the perch. Also before you put your seals in you should have put 2 stroke oil on your bearings.
I did,I oiled everything up very well!
@@2vintagebut forgot to oil the Piston dry sounding going in. Oh I'm talking the cold Engine revving out Guy 😂😂😂 you have a Rev fetish. Rev the engine up to higher Rpms NoT Rev out of Rpms. 😂 You're so green dude that's the color of your poo!!
I love the 2 stroke sound amazing bike you tripled the value of the machine for sure maybe more
We need that beautiful power band footage
That would be such a fun little play bike.
It snaps quick when you hit the throttle no bog no lack instant power just like a yz should
Yeah very snappy