Dirt Bike Basket Case (Pt 1) - Blown Yamaha TTR125 - Teardown
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- čas přidán 31. 05. 2023
- I found a great deal on this Yamaha TTR125 on Facebook Marketplace. The bike is pretty new and looks complete, but the engine is a total mess. Someone else already took it apart and decided to sell it when they saw the extent of the damage. What caused the failure and is worth repairing? The damage is pretty bad.
Dirt Bike Model: 2015 Yamaha TTR125LE
TTR Rebuild Playlist: • Yamaha 2015 TTR125 Reb...
Part 1: • Dirt Bike Basket Case ...
Part 2: • Dirt Bike Basket Case ...
Part 3: • Dirt Bike Basket Case ...
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#Yamaha #DirtBike #Fixed #Troubleshooting #HowTo
Basket Case, Bent Counter Balancer, Bent Shift Shaft, Bent Valves, Bent, Blown Engine, Blown Oil Seal, Connecting Rod, Conrod, Disassembly, Dirt Bike, Fixed, How To, How-To, Load Test, Low Oil, No Oil, Piston Disintegrated, Piston, Puller, Rebuild, Repair, Seized Engine, Severe Damage, Shift Shaft, Small Engine, Stuck Engine, TT, TTR 125, TTR, TTR125, TTR125LE, Transmission, Troubleshooting, Tusk, Wiring Harness Short, Yamaha - Jak na to + styl
When I saw the part where the wires were twisted together, the first thought was stolen bike.
Love engine teardowns . It's like reading a crime novel . Can't wait for the plot to unfold .
I wish I had the time and money to gamble on projects like this. It is fun doing stuff like this. I recently revived an ATV for a friend of mine. It had not run in a few years, and a carb rebuild turned into a carb, starter, solenoid, and battery replacement. It was a lot of fun, but I got it running.
Your kids must be stoked that you bring home stuff like that.
It's a business, though, so perhaps they don't get to ride them.
If you look at the background, he keeps a bunch of stuff. I do the same stuff as James and the kids have ultimate decision on what happens with stuff…
Clearly the kids say their Dad is the Best Dad in the World.
Interesting video. Don’t want to miss the rebuild. 👍👍
@@brad9529 I'll bet they do through incessant nagging.
I have to tell you, I find your lack of four letter superlatives simply amazing! I would have run through my entire list of them in the first ten minutes of the disassembly 😆😆😆
Thank you so much for a different type of build! Love dirt bikes, mini bikes, and go karts so this is exciting. I have to say, you are the “Bob Ross” of engine and electrical work! Calm and collected, careful and thorough. It inspires me to be a better mechanic when I work on the few items I have around the house. I even have my wife watching your videos now!
9:50… Poor Mrs. Spider getting evicted from her home, after all the tapping, crawling from the engine toward the right of the frame… 😂😂😂 … You made my day with this video. I love ALL your work, but I really love bikes, and so this one is special, and I was hoping to see stuff like this from you, knowing your excellent skills… Thanks! 😊😊😊
I wasn't going to watch this because my thing is generators, but you hooked me. I never knew there was so much packed in that engine and transmission assembly. It was like unwrapping a mechanical Christmas present. Thanks for a very interesting video. I really enjoyed that and learned a lot.
James I had more fun working on and riding a 1978 DT125 enduro oil injected back in the mid 1980's. Had a friend that was in this 70's of age that had a Yamaha 160 and he bought his late in life young son a Honda 4 stroke 100 enduro. We had fun riding them in the Logging roads of southwest Arkansas. The roads were all mapped by Weyerhaeuser Forrest preserve and we could actually ride in any direction all day long then get back to a truck and three bike trailer very easily. After we migrated to the first three wheelers and four wheelers it was never the same but we all agreed the simple two strokes were so much fun. We could tear them down and make repairs and be back out the next weekend. We had a great family that owned the Yamaha dealership and they were alway glad to help us with parts. Well maintained simple bikes like the 125cc were so great.
Excellent video as always, James. It occurred to me why the Ignition switch may be missing. You're not going to like this, but perhaps the bake was stolen at some point. And because the person who stole it didn't have a key He then cut the ignition off to use the bike. Which would possibly account for why it was ridden until it ran out of oil. Just as a joyride bike. I hope you have better luck with it, and I hope it goes together well for you. Thanks for sharing.
I was thinking this too Brian. but it could also be owner lost key and didn't want to pay Yamaha extortionist price for new locki/switch mechanism. It also could have changed hands broken, without key, and new owner did wiring hack before realizing bigger issues. That may be more likely since it never could have worked the way the hack was wired according to James. Definitely an interesting mystery on top of all the mechanical trauma !!
The word "stolen" popped into my head more than once while watching this video, but James is not the type to buy something without a legal title.
@@TheOtherBill Dirt bikes are usually just bill of sale around here (Florida). Nobody messes with titles on off road vehicles. No reason to register them, so there's no benefit of paying to transfer the title.
I applaud your persistence. Especially on that intake pin. With all the pullers and little surprises like that ball in the end of the crankshaft, I highly doubt that this would be a project for me. I’m impressed by your advanced knowledge on these engines and your keen ability to autopsy the causes.
A lot of research went into this one. Have not worked on an engine like this before.
Getting everything apart is the easy part.
@@jcondon1 well done! even though it's only a teardown so far. nice to see new content! Brings back memories of my first bike when I was about 13. A friend used it for about 30 seconds, ran thru some tall weeds and tore off the gear shifter. every penny I owned went into buying the thing and I had no money to fix it. It sat for a year then my dad found someone to "weld" the piece together. It lasted a year and sheared off again. had to give it away.
@@jcondon1 43:00 I THINK. The bike wouldn't start because of wire issue so the owner dragged Bike in gear behind a car to bump start it. That's why wheel is bald
That's why the swing arm dust i bet is not oil its rubber dust
Ya more dirt bike rebuilds Awesome.
@@Melicoy I never understood the dragging behind the car method. If it doesn't start with the electric starter or kick starter, something is wrong and needs further diagnosis.
It's James Condon Fixes All instead of Teryl. Good work and God Bless!
The one tool that is the best thing to have in the tool box is the harmonic balance puller
agree Robert - super useful . simple piece, i got mine super cheap like a thousand years ago , might have been from an early-days harbor freight store..
@@GannDolph I have one of those myself went to the hardware store and got nuts for the different bolts and used it to remove a tire from a riding lawn mower it did the job with ease 💪
Excellent Post-Mortem. I think you absolutely figured that one out. Amazing!
What happened to “ that’s all for now thanks for watching “. Can’t wait to see putting her back together. Love your videos. Thanks
I'm always impressed when someone splits the case, especially when they are not a schooled mechanic, ( I'm figuring you're not a schooled mechanic ) but even if you are this is no small thing, yes it is doable ( although I wouldn't attempt it without the manual ) having said that if anyone can do this and make it look easy it's you, I have complete confidence this bike will run well again, looking forward to the rest of this project
Not schooled but I did buy the service manual for this project.
Nice work James. You can put the valve pins in the freezer the night before you are ready to install them and they should just tap into place with very little effort. Don't take them out of the freezer until you are ready to send them home. I gave up two wheel riding about 3 years ago when I started having issues with my legs. I had ridden motor cycles for 45 years. The only thing I would ever do to my bikes was typical oil filter changes ,cleaning and inspecting. Beyond that I would take my ride to a qualified technician. As the saying goes ( there are those that have been down and there are those that are going down.) Its dangerous enough being on two wheels. I didn't want to pepper in mechanical mistakes on my part to cause me injury or death.
Yea but other guys really love this hands on repairs just as much as riding them or buying some one else's disasters and putting them back together and today with all the videos out there it's much easier than when I was growing up just take it apart and figure out but I know we're your coming from also sir
When the multi-meter comes out, good things happen 😀Came here for the video, stayed for the life lesson!
That’s a very good beginner dirt bike to introduce your children to the two wheeled world of off road riding.
It also has plenty of suspension and power to carry a typical adult around with relative ease while putting a smile on their face at the same time.
It is not a motocross bike, in any way, shape, or form, but it will certainly get the imaginary juices flowing, and that it what it was designed for.
Typically made for a 12-13 year old, or around 5’ to 5’-6” in height.
The TTR 125 comes in a couple of different variations.
The 125 has a 17” front and a 14” rear for the wheel/tire size.
The 125 L has a 19” front and a 16” rear for the wheel/ tire size (hence the “L” for large).
The 125 LE adds an electric start (hence the “E” for electric start).
I’m sure you already know all this Sir, as your videos prove that you are a well seasoned small engine mechanic with very impressive knowledge of small engine problem solving capabilities and ingenuity.
It’s a good bike for the kids to learn on and Dad. I have never had the opportunity to ride a dirt bike. A little small for me, but should have no issue moving me around at speed. Also good size for the ladies.
Yes Sir, the TTR 125 has a low seat height, and that makes it comfortable for a broad range of riders. It has more than enough power to get you around the property and put smiles on faces. It’s a well rounded fun bike. My Dad (180 pounds) rode it all the time, and he loved it. 😎
Thanks for the reply Sir !
My favorite part of this entire video is how you completely win forensic files on determining how This bike was destroyed! You are a true master of your craft James!
I appreciate the variety! I know i will enjoy this as much as i did the gokart video!
How can you remember how everything goes with back together? I noticed you didn’t have a shop manual. You never cease to amaze me👏👏👍
Looking forward to the next video she looks like she can be saved good work @James Condon
My hats off to you, this is a mechanics worst nightmare " a pile of parts". I have an old Yamaha IT-175F and it had the same problem, a leaking shift shaft seal but since it was a 2 stroke it wasn't an issue. Just from the title " Blown Yamaha " and the picture I at first assumed the engine had literally blown up into pieces and had fallen off of the bike. From the do-dads on the spokes I can assume maintaining this machine was not exactly high on the previous owners list of to-do items. I would have liked to have been a fly on the wall when they brought this ( literal ) basket case to the Yamaha dealer. I'm looking forward to seeing a continuation of this. Great video.
Tune in tomorrow-same Bat-time, same Bat-channel!
I really enjoyed the "slide hammer hack". Great vid!
I own a yamaha ttr125 exactly like this thankfully it runs great awesome video being able to to see this engine disassembled, often the shift forks and shaft get bent from stomping on the shift lever, someone falls down has to pick the bike up gets upset and stomps on the shift lever, I have to remind my grandchildren not to do this, sometimes they do it without thinking.
Good Old Basket Case Project to Get the Excitement Juices Flowing To jump into this sweet project head on Engine Looks Decent @James Condon
Not just a mechanic he is also a very impressive Miss Marple.
I feel your pain. I just had to remove an "easily removable" bushing from a tiller. After much beating and the power of PB blaster I managed to get it out. Shouldn't have needed to be that hard to remove. Getting it back in after replacing a seal was almost as hard. You have again proven you are way beyond my level of expertise.
I loved the MacGyver'd slide hammer.
I’m really looking forward to part two! May I suggest you get yourself a generic slide hammer kit next time you’re at the tool shop as they can be useful in many different situations. Cheers mate, Stuart 🇦🇺
Love the “specialized tool”👍👍👍
Nice detective work Doc.
6.1.23 You now work on motorcycle engines as well. Great video.
I do now
Thanks again , watching you being methodical and careful is very interesting thanks again .
Takes me back to my late teens working on Yamaha's , in those days they where simple air cooled two strokes and spliting the case was always a nervous time ,no cameras or youtube in those days just a dirty old workshop manual if you where lucky. Very enjoyable vid your patient and methodical work procedures and your calm and articulate voice are a pleasure to both my eyes and ears and of course my brain . Looking forward to seeing this machine riding around your yard running like a brand new machine. The prices you quote for parts are much cheaper than we pay in australia . Our exchange rate drops our dollars value but even taking that into account the USA is the place for good value for money parts.
Very neet puller to pull that engine and transmission apart @James Condon
As a former motorcycle mechanic (in the seventies) I thoroughly enjoyed seeing your teardown, also I am under the impression that this is not the first bike you work on
That was a real catastrophic failure when that engine blew, at least the engine case and transmission survived, looking forward to part 2!
It seems weird watching you work on something other than generators. To me it's kind of fun working on something else that i've never had much experience in
I ordered that crankcase puller after watching this, thanks. That said, I have like 30 pullers and every time I need a puller it's never the right one.
Great vid. thanks from an old motor cycle rider in Australia.
Your work arounds for special tools always impresses me, I'm looking forward to the rebuild.
About the oil leaking from the shifter, this is what is happening with mine, Thx for showing me the part :>
Nice to see something different on the channel - not that I’m complaining about other videos, just merely applauding it.
I look forward to hearing it run.
28:12 James shows outstanding ingenuity. I’m impressed
Fantastic tear down. Great narration. Really enjoyed that. Thanks for sharing
Great video, James, as usual! We’ve been watching for your output for a good while. Thanks!
thank you James
I wait with alot of anticipation for part 2 to this Bike Video! Great Job! You repair and educate at the same time. Not many can do that!
Great Video James Thanks!👍👍
Title of video should be: CSI Blown Yamaha TTR125 - Teardown by Detective Condon. lol When you said they probably got hurt bad, I lost it. I can just see some good ol' boy zipping along and then flying over the handle bars.
Love your videos and your attention towards detail.
At 31:08, that was a very clever trick of using parts from your other puller to create a puller with the socket. I never thought of that! Thank you!!
Great find. Just hope you can get all the parts you need and I'll be looking forward to the rebuild in the future.
Oh and I would have to say I agree with you on the dissecting the actual cause of how it ended the way it did!
That was fantastic. Nice to see a more complicated repair process. I'm hoping for more motorcycles in the future.
I'm enjoying this. A nice change of pace. I know you'll succeed. Looking forward to another episode of progress.
Great video as always.
Advice time...... When using percussive persuasion tools like slide hammers or any other type, ensure that the part is fixed to a bench and that the bench is fixed to the wall or floor so it does not move.
You were losing almost all the inertia in that slide hammer due to the part moving. Try it and you will be surprised at the difference it makes and how little effort is required.
Looking forward to the next video
Percusion happens so quickly the impact is delivered before movement can occur. That's the magic of the method. I was on a job and a guy was having all sorts of problems trying to remove the blade on a concrete saw. So I stepped up and tapped on the wrench with a hammer and loosened the bolt right off. It spun before the blade even could. Because I'm a magic man with magic hands.
@@1pcfredYou are correct in some instances. Bolts are different to what was happening here. My experience and physics says that in the case of the bolt, if the item the bolt is attached to has sufficient mass then it will work as you suggest. However, in this case the item overall has little mass and the item was being pulled, not rotated.
Significantly more friction and little mass.
@@Byzmax nope it just works. Your physics is flawed.
@@1pcfred 🤣
Great video, can’t wait for the next installment.
Amazing deductions James 😊
Excellent production values. 👍
I really enjoy your videos and look forward to seeing this finished
Great find , and good work !
Awesome bonus footage. You really have your capable hands full with this project. Looking forward to the completion.
Great video and I’m waiting for part 2!
43:00 I THINK. The bike wouldn't start because of wire issue so the owner dragged Bike in gear behind a car to bump start it. That's why wheel is bald
That's why the swing arm dust i bet is not oil its rubber dust
Ya more dirt bike rebuilds Awesome.
Looking forward to part 2. :) what a mess of an engine based on simple bent shift rod and seal.
Thanks for keeping us all entertained. :)
Just slightly more complex than a Briggs and Stratton. Nice change for sure.
Awesome vid, James. Love the root cause analysis at the end. This is way better than NCIS. Looking forward to pt. 2.
Great job James.... favorite viewer from VT.
Hi James I definitely love every video you post, You include so much valuable information on small engines and everything to make them work…I’m definitely Looking forward to seeing this bike run again and would definitely be amazing to your viewers…amazing job well done.
Looking forward to this one, I do this struggle every once in a while trying to get machines on the cheap and it always ends up being more than I figured.
Hi, James. Dirt biking was one of my hobbies. I hope you can get that bike to a usable state. Always wear a helmet when riding a dirt bike. Thanks for sharing!
Nice Video... can't wait to see part 2
Can't wait to see part two 😊
Thank you for the video I'll be looking for the next one
Eggcellent & different , James.
Another highly enjoyable episode from The Master himself.
Thanks for the free & informative entertainment.
Very nice job so far. You're a braver man than I.
Great video! Please more like this.
Great video. Always a pleasure watching someone with me mechanical skill, learned from hands on experience, problem solve and diagnos both mechanical and electrical issues. Really looking forward to the followup video.
Looks like a mess to me. Thanks again for sharing this video with us.
Great job figuring out where the problem began! This will be a great one to watch go back together! I expect some wheelies sir! Great video as always James!!
Holy cow that is a lot of parts. I don't think I could ever get it back together. Looking forward to you getting it up and running. Thanks for the videos.
I am looking forward to seeing the rebuild of this motorcycle thanks for producing another quality video
Great video james
The shift shaft seal and the countershaft and not to mention the flywheel seals are prone to failure. As for the shift shaft being bent, someone took a digger on the left side of the bike.
Good teardown video. EBay is a great source for used OE parts.
Nice job. I hope you are going to order a rear tire for that bike too. Can’t wait to see the 2nd half of the video.
I really enjoy your videos. I have been building engines since I was a kid (quite awhile ago) but still find your videos interesting and informative. Glad you focus on the project and no annoying music. Wish other YT's would take some lessons from you. And I like that you vary the projects and not just generators.
Looking forward to part two 🙂
Great video, always goes to show that if you don't look after your stuff, you'll end up paying dearly.
I made my own slide hammer with the ability to change the end to anything from bolts to hooks, so you can use it on anything.
I have an 02 TTR125 that needs rod bearings and I’ve been hesitant (several years) to split the case. All of the gears intimidate me and I’m afraid I can’t get it back together right. I have the motor off and the cylinder off of it. I just hate to dive into the unknown without some knowledge. But this video may help me continue the repair.
Also the kick start has an issue not engaging when kicked unless you lean the bike toward the kickstarter.
I rebuilt my transmission in my truck, off of you tube 3 years ago, so I can surely do this.
You rock dude! Love your video/content quality.
Thanks
Great video Sir!
I have a ttr 225 and it is a super fun reliable bike, i know you can get this one back on the dirt.
That was a pain, nice going James
New video! How cool.
Got the whole thing apart in a methodical efficient effort and as always one dang pin had you grabbing a generator bolt and some washers and a big impact socket and whomping away.