Owner Said This Dirt Bike Has a Horrible Knock 

I like these mystery diagnostic vids. Some of my favorites. Keep on Keeping on man. Merry Christmas to u and your family🤟🏻

It’s always great how you help people out Joe. Happy Holidays to you,the fam and the RU-vid Family 👍🏽

Must have stomped the shift lever at high revs without the clutch pulled? Enjoyed the tear down!

Amazing how you never baulk at tearing things apart, finding and remedying the problem, getting everything reassembled and working again as it should. You are a real inspiration, Joe! Greetings from Australia.

Who else is working in your garage sometimes? I don’t really know much about engines and fixing them but I find your show very interesting. I had a 1972 Cuda that I did a lot of repairs on. Engines are no where near the same anymore. Great job!

Thanks Joe! Great video and diagnosis. Owner did drop the bike on left side without clutch held in and in a rev, then the chain bound and snap snap snap went the gear teeth. Expensive lesson.

Had one of these bike not too long ago, there pretty nice, and very comfortable and reliable. It's nice how easy they are no work on, especially dropping the engine it's super easy. Good job Joe! Love your videos!

Good going. Where's the little inspector?

Joe I got a 2002 Honda Foreman TRX450es that has a bad first gear tooth, or teeth broke/chipped off. I will need to address that very soon...Love your work and skills

The path to a master mechanic is paved with broken pieces, keep up the good work!

I admire your work ethic. You put out content consistently and for that I for one can acknowledge credit where credit is due. I am one of those people that has been watching your videos for years and really do wish you would develop further as a mechanic. It’s your channel and your opinion is the only one that matters I get it but people who are mechanics would have a higher opinion of you if some of the sound advice offered to you from your audience was something you could value and appreciate. Most of us long time viewers really are rooting for you and offer advice to help you and are not motivated by trying to be overly critical and just dumping on you. And once again I for one value and appreciate your work ethic.

I love all of your bikes because when you get them they are trash but when you put them out they are golden Superstar heroes just like

Great video. Loved how you let us hear the problem. Then diagnosed it instantly. Great video joe

Brilliant video Joe watching from Edinburgh Scotland UK 🇬🇧 👏

Awesome videos man nice work u never miss on knowing what’s wrong and getting them fixed Happy holidays

It's the mystery of the engine fail which keeps me coming back here. And, Oh boy, have we seen a wide variety of them which always makes it very interesting to watch and learn. TnX man and a very Happy Peppy X-Maz!

Luv watching your channel, I’ll learning by watching your videos. I’ve been looking for part 2 of your Grandfather’s bike you were working on. Did you make other videos of the repairs ? Keep it up 👍

Nice bike, great video. Another teaching/learning moment. Keep up the hard work and be nice to 2Vinney

wow.......... a broken chain results in disemboweling the whole engine. Good work. Kool vid.

hey thanks for this great video again. I love your video's and that's what got me into fixing my own bikes :)

My fav channel!!!! Woooo. Love these vids Joe. Love Vinny!!❤❤

Crank or rod. Had the one recently, owner rebuilt top end, left oiler rings of piston. Wow, it was trashed. Fun repair!!

Fixed my ttr125 and a yz400f I got for $600 thanks to your videos man. Keep it up. Can you do a video of installing a throttle cable and adjusting it right? I’m having problems with that lol unless the bike has been having the wrong part this whole time.

I have one of these. Runs nice, reliable and easy to work on. It does leak gas thru the overflow. I've seen others like it also do it.

They are all cold blooded I put a 17.5 pilot in it and it made a world of difference. Btw was that the second gear that failed ? Supposedly it's a somewhat common failure. Your video is giving me the confidence to tear into it ours. Its one of the play bikes we ride on the property and It's killing me its jacked up.

must have been low oil that has caused this.Another great vid Joe

No maintenance, adult- ridden hard kids bike. Thats how that happens.

That warrior I'm doing for a guy, it's nuts. Couldn't get flywheel off with puller, got to looking at it, it's tack welded to crank. Was rebuilt 2 years ago and started clattering badly. Severe hack job. I knew it was gonna be bad from get go. No grease anywhere, swing arm locked up, etc. Doubt internaly is very well either, had less than 1/4 of a quarter of oil in it. Rod bearings seem ok, but the crank is toast. Bunch of 8 and 10mm headed bolts have been cross thread and used sae bolts 1/4 20s mostly. Yeah 7/16 headed bolts. No gaskets on it, all silicone. Horrible mess. Pulled oil filter housing, it was filled with debris. Wish us luck on this pig, you keep rolling bud, great vids, hope you don't get one like this, wa ts whole bike gone through front to back and motor fixed up, wants it all for under 3k. Got 4 hours already in it. Hardly made a dent. Keep up great vids Joe!! Could use you on this P.O.S. make great vid series for sure.. will let you know how it goes... still gonna get our morning Joe vids before we start wrenching.

I respect your humility and acknowledging your failures and how you are learning as you go. I realize there are too many comments for you to spend your time reading them all, but the ones that are upvoted/liked might be worth a look, so you can learn from the mistakes and knowledge of your viewers, as well. Merry Christmas!

My guess is when he dropped it the shifter hit the ground and tried to force it into the next gear.

Joe, the chain sprocket looks severely worn very pointy at tips. It looks like the owner tried kick starting it while gears were bound up! It’s the only way that carnage could happen. A chain jump wouldn’t cause transmission gear damage. Lack of oil or bad bearings causing gear teeth misalignment. Also tell owner to use non-ethanol gas!

I’m addicted to your videos and have been binge watching them. 😬 Did you finish this bike.

I will be curious to see how the shift forks go back into the gear sets ...

I’ve learned so much from this channel ty!!🤟🤟 cheers from ont. Canada

Happened to find your channel just few days back, like the videos very much, high class guality work. Based on your experience, whats your top 4 motocross bikes for maintenance ease and reliability. Keep it up, cheers from estonia

Great work enjoyed you stripping down and finding the problem, can't wait for the rebuild.... Andy Uk

The air filter on the quad is pretty nasty. I keep seeing that and wondering if you're going to change that out. Interesting problem on the TTR. Maybe the transmission just got jarred enough when the bike dumped over that something bound up for a moment. Very strange, but this is one of those cases of "while you're in there..." Good video, sir. Look forward to seeing the bike go back together. Your channel sure is growing! Your garage inventory is as well! You need to sell off some of those bikes! Take care!

I enjoy watching your show. You do well at it.

It is my experience that out of all the Yamaha bikes the TTRs seem to have the most issues. When I was younger I had a ttr125 and a ttr230, and I had a very young cousin who had a ttr50. They all had some sort of issues. As a Yamah guy I've never cared for the ttrs too much, I much prefer the YZ line

BEAUTIFUL WORK! As usual!

2V your skills are crazy smart. You earn the title "THE MOTOR WHISPERER" Joe💯👏👏👍. Thanks for the 🎬 .Happy Holiday's 🎅🎄🥂✨️. Salute 2.V 😎✌️

May want to replace that quads relay to prevent the wiring from being melted by being bypassed. Just a thought though. Best of luck.😊

Don't forget to order a new primary sprocket. Love the whodunnit videos. LOL Have a great Christmas. :)

"I don't want to start it up anymore than I have to". 38 kick and about 10 starts, which sounded like a bucket of bolts in a washing machine. Luckily 2vintage is not repairing my bike.

Wonderfully channel, I'm making my son watch this so he learns how to maintain his mx bike I'm going to buy him.

7:35 Joe looks like your panning for gold!

Merry Christmas Joe and family, and to everyone who reads this! Around the 22:15 mark it sounds like a baby crying?

Nice yamaha Joe, clean. Does hard shifting cause that kind of damage?

If Vinny didn't sleep in, he would have led you directly to the issue. It's always good to get a second opinion. lol That being said, I was wrong. I was thinking timing chain or oil pump.

the 4 wheeler problem --> always learning until we die man, don't be frustrated. many times we look for a difficult issue and don't see that's in front of us.

Merry Christmas Joe, Vinnie, Chuck and Everyone. 🎄🎄🎄🎄🎄🎄🎄🎄

For others that have this ttr, and it is a little cold blooded ... up the pilot jet one size, and it will still be a little cold blooded, but not as bad.

How on earth do ya keep up with all the gears,washers screws bolts nuts geez i'll never know..Good work man..

After what ive dealt with today, nothing surprises me anymore. Never seen flywheel tack welded to crank, or one way bearing only having 10 teeth in it, only compression rings on piston.

I like that you upload every 2-3 days w

The chain came off under load and then probably jammed up between the counter-shaft sprocket and the engine case or between the sprocket and swing-arm: the torque was then applied straight through the gears.

Hey joe Merry Christmas. Love when you work on motorcycles.

I think that you are the best superstar mechanic of all time and my wife says that you have a very good body and you could be a supermodel if you tried vintage boy!

I wonder if it was metal fatigue that caused the gears to fail from repeated strain. When the chain gave way, it triggered the failure. Otherwise, it's a really clean bike, and looks to have been well cared for.

Why do I have a feeling the owner is the type of guy that runs the oil out of a motor and then blames the engine for failing

Perfect. Nice one. What is your camera? It's nice and sharp.

I had a yamaha rt 1 360 enduro that had the chain come off and broke a couple of gears.I put new bearings in and replace the broke gears and it ran great.That was a fun vintage bike but crappy rear suspension.Back in the day that bike cost me $110.00

hi Again what is the impact driver you use for your strip downs..........brilliant vids as alaways

Happy Holidays Joe👍👍

I think that's the one thing I dislike about bikes as such.. you have to tear the ENTIRE engine apart to get to the transmission.. that's brutal.. splitting the case to find .. well I'm 42:00 in you just pulled the oil pump out, but man.. that's a LOT of work to find something that could be silly in the transmission.. However- I love watching you do it Joe, you're an artist with these things, a magician if I may.. Merry Christmas brother, have a great holiday season with the wife and dogs!!! edit: oh WOW 1 minute later and holy smokes!! What carnage!!! Awesome catastrophe wowsers!!! I'm surprised, it really does NOT look like there's a ton of hours on that bike.. I realize the chain came off, and catastrophes happened when chains come off, I know for a fact.. but man.. jeez oh man that really sucks.. Even the ring gap, being what it is.. yeah it's there but man I've seen running bikes with way WAY more worn rings. Seriously looks like he took GREAT care of that bike. What a shame, but if anyone's the man to fix that thing, it's you!!

Thanks for the content keep them coming!

Always up for some bonus footage. 👍

Awesome videos brother! Ps please get yourself a bike lift for Christmas 😂

It was probably in gear when you started it those stripped gears making the noise and causing it to stall.Did you pull in the clutch when it was running to see if the noise stops.

Ttr125’s always leak gas. Early models do not have a spec for the floats and when improperly adjusted, they flood the bowl and run out the overflow. Horrible carbs to tune also.

These yamaha 125 engine are hard to kill. My friend had one, it was abused like rental, but it never gave up. Idk what your friend did, but it must've been one helluva abuse.

I think over hardening of the gearbox gears . This has caused brittleness of the teeth which resulted in teeth stripping when chain came off.

The counter balance can be a pain too. Power dropping with no clutch when its freezing cold out gear teeth smash.

Sounds like when he dropped the bike with the chain loose maybe under high throttle something caught the chain and sheared gears? That was my initial guess before he even opened the block.

I see those gloves a lot. I like them. You must buy them in huge quantities !

The chain fell off, but was still on the front sprocket, but was lodged somewhere on the frame and the engine was still running and in gear. That is what caused a gear to sheer. The repetitive starting and riding caused further damage

Damn man how many times you gonna crank it with that knock!? We heard it the first 15 times and you have the magic of video recording so you can rewind as much as you like

Maybe one day you could build a big bore piston with hiperfornance cam shaft project bike . That xl 500 would make for a good 540 motor

I took a TTR on a trade years ago with broken teeth on a transmission gear just like that. It wouldn't lock up but it clicked as you rode. Thankfully a pretty quick engine to tear down as you know. I think it was actually my first bottom end rebuild! Nice work.

valvetrain then trans would be the first things id check for sure on a sound like that. Theyre the weak links of maintenance and things that take the most abuse so makes sense. Dropping bike on the shifter while in 1st will do that

43:01 .. 'How the heck does that happen'... Sorry but. It certainly doesn't help to keep kicking it over & over until it locks, especially when you can immediately hear an obvious mechanical issue.

Big bore kits may not be available on the Internet but desperate people could find a local machinist willing to use machinery on small bore cylinders ive heard people say the Yamaha ttr's are gutless but amazingly reliable ive also heard good things about the new crf 230f i use to have a 150f and i put that machine through abuse every single day

Hey, did you take the head and cylinder.off before the engine because its easier so you dont have to hold the engine in a vise or something?

Great Video, THANKS!!!

So how would you remove the crank from the other case if it only goes one way?

Well, got flywheel off, nightmare, figured out that a lot of the chunk I found in bottom were teeth from one way bearing, only had like maybe 10 left in it, some how it worked. Fun, had to share that..

I just got a 1996 ds80 2 stroke Suzuki I’m trying to figure out what kind of oil it needs for the crankcase.??

The shaft from clutch to inner gear box is shot. Maybe a stripped gear or two. Split the cases

Thats what happens when chain pops at high speed. Seen it before. At least they're not all ground off.

Well done👍🏼

Strippeed bare. Love it!

If when that chain came off it jammed on the case or rear sprcket, even for a brief second it would lock the trans and the crankshafts rotational momentum would shear gear teeth off very quickly. 😕 Edit: forgot the O in sprocket, ooops.

Hi, love your videos I wonder when you find time to sleep😁 Need a new front sprocket too, it looks like a little saw blade, if you do best practice is to change the back one and chain too. I have seen you sometimes replace only de back one without a new front sprocket or chain. But I understand you keep the cost as low as possible. Thanks for the joy you bring to us.❤

I have a 07 YFZ450 I would like looked at, oil is milky, fan doesn’t kick on, running really lean. Carb needs to be looked at, anyway I can get ahold of you to drop off to be looked at? I sent a message to your social media also.

What does the drive gears have to do with keeping the bike running?? It should have stayed running and then stalled when you put in gear .. Am i right or did i miss something ?

Hay you should try and find a yz85 just think it might be a good break form the bigger bikes

How many hours and how much cost did the guy have into this by the time you'd done? Thanks

Continuing to attempt to run a machine with obvious internal contact is the worst kind of mechanical error.

One of my favorites channels on RU-vid 👍🏻🇬🇧

Herr commandant, ze transmission ist kaput! 👍🏻 BTW that front sprocket a bit hooked & fooked.