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.
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.
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!
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
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 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 😆😆😆
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.
@@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.
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.
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 !!
@@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.
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.
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.
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.
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
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.
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.
This video series is awsome, i am finding myself in a extremely similar position right now. Fortunately my valves are fine but just about every single bearing in my bottom end is shot. Partzilla takes my money once again!
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
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.
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 !
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.
I must applaud your perseverance and expertise, especially when tackling the intake pin and uncovering those unexpected surprises like the ball in the crankshaft. It's truly impressive how you possess advanced knowledge of these engines and your ability to diagnose the root causes. This project would definitely be a challenge for most. Keep up the great work! 🏍🔧👍
@@brianallen9810 Personally I'm not sure it was actually bent, you would really need to put it between centers to check properly. there is probably enough slop in a single bearing to give a false impression. I would replace balance shaft bearings even if I didn't change any of the others as they are quite small and get a really hard life. Probably a standard size so cheap (something like a 6202?)
Well based on your videos I will work on generator motors but never a motorcycle engine. There is to many parts and problems. But it is great that you can do it and a very instructive video for the people willing to try it.
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.
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!!
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 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.
WOW what a mess! I am surprised that there was anything usable left in it. This will be an interesting rebuild. All surprises are probably discovered. Great investigation especially the ignition. Thanks James. Ed in Stafford Virginia
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 💪
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!
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! 😊😊😊
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.
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.
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.
Brilliant video and another incredible deep dive into various engines and equipment. Disappointed that you didn't fit a briggs and Stratton 11hp into the bike frame
Quite obvious you skooled, (I know), yourself before filming. I applaud you cuz the presentation is so much easier to follow than the book. The published words are tougher to edit and delete than the spoken oration and minor mumblings of a true pro mechanic in a family oriented vijayo. I tip my beer glass to you Sir.. K
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!
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’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 🇦🇺
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.
Hello James good job and resourceful in removing the pin. For the install put the entire body into a 290-310 deg F. Oven for about 1hr. The pin will probably drop in place. The difference in expansion rate between the aluminum and steel parts will give the necessary clearance. The torch can work but very little control on total temperature. Torch has too much temperature without having enough overall heat. The oven should give you good control on soaking the aluminum block to an even 300 deg. If you can shrink the pin in the freezer as well and maximum clearance differential will be achieved. You could probably remove the jug sleeve using the same procedure with oven. Might not be cost effective as they are cheap if ordering the clone knockoff parts. Looking forward to seeing you ride the bike.
Hi James, very intriguing case of an engine failure...thanks for sharing. I would have checked the oil pump as well, just to be on the safe side. Could have suffered some damage or have some debris inside...
I checked it off camera and it was pumping well. There is also a bolt on the head I can remove once the engine is together. When cranked, oil should come out if everything is working.
Wow, that's a lot of parts. I just can't get a good system on my own on how to remember order and orientation to put parts back. I am in awe of folks who do this naturally.
There requires a lot of investigative knowledge as well as mechanical know how when troubleshooting a blown engine.The removal of the starter switch and then discovering all of the leads spliced together was probably the most perplexing part for me.Like you said how would’ve they been able to even start the bike with a dead fault? Nice work,looking forward to watching the reassemble.
Jim I am amazed at this one , which is far different from your Honda OHV single Generator engines ,This couldn't have been your first tare down a motorcycle engine ,I can't wait for the build back you do on this, if you can get the bike back from your son, your skills are vast and make your Videos very much worth my time watching ,excellent work keep it up
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.
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.
Love engine teardowns . It's like reading a crime novel . Can't wait for the plot to unfold .
When I saw the part where the wires were twisted together, the first thought was stolen bike.
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 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.
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!
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.
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!
Good Old Basket Case Project to Get the Excitement Juices Flowing To jump into this sweet project head on Engine Looks Decent @James Condon
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 😆😆😆
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.
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.
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.
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.
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.
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.
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
Excellent Post-Mortem. I think you absolutely figured that one out. Amazing!
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.
Nice to see something different on the channel - not that I’m complaining about other videos, just merely applauding it.
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.
This video series is awsome, i am finding myself in a extremely similar position right now. Fortunately my valves are fine but just about every single bearing in my bottom end is shot. Partzilla takes my money once again!
Your work arounds for special tools always impresses me, I'm looking forward to the rebuild.
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!!
I appreciate the variety! I know i will enjoy this as much as i did the gokart video!
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's James Condon Fixes All instead of Teryl. Good work and God Bless!
Looking forward to the next video she looks like she can be saved good work @James Condon
What happened to “ that’s all for now thanks for watching “. Can’t wait to see putting her back together. Love your videos. Thanks
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 🤣
28:12 James shows outstanding ingenuity. I’m impressed
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👏👏👍
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 !
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.
Very neet puller to pull that engine and transmission apart @James Condon
Thanks again , watching you being methodical and careful is very interesting thanks again .
I must applaud your perseverance and expertise, especially when tackling the intake pin and uncovering those unexpected surprises like the ball in the crankshaft. It's truly impressive how you possess advanced knowledge of these engines and your ability to diagnose the root causes. This project would definitely be a challenge for most. Keep up the great work! 🏍🔧👍
That ball in the clutch operating shaft is common to almost all small displacement motorcycles. What intrigued me is the bent balance shaft.
@@brianallen9810 Personally I'm not sure it was actually bent, you would really need to put it between centers to check properly. there is probably enough slop in a single bearing to give a false impression. I would replace balance shaft bearings even if I didn't change any of the others as they are quite small and get a really hard life. Probably a standard size so cheap (something like a 6202?)
Awesome bonus footage. You really have your capable hands full with this project. Looking forward to the completion.
Well based on your videos I will work on generator motors but never a motorcycle engine. There is to many parts and problems. But it is great that you can do it and a very instructive video for the people willing to try it.
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 have a ttr 225 and it is a super fun reliable bike, i know you can get this one back on the dirt.
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!!
I really enjoyed the "slide hammer hack". Great vid!
6.1.23 You now work on motorcycle engines as well. Great video.
I do now
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!
Eggcellent & different , James.
Another highly enjoyable episode from The Master himself.
Thanks for the free & informative entertainment.
James, if you haven't already, check the balance shaft bearing. It looks skewed in the case. Keep going! Love your stuff.
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. :)
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
Definitely something that deserves to be saved. Great work.
Ya, ma, haaa!
@Paul Frederick always been a Yami fan
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.
WOW what a mess! I am surprised that there was anything usable left in it. This will be an interesting rebuild. All surprises are probably discovered. Great investigation especially the ignition. Thanks James. Ed in Stafford Virginia
If it was me I'd have punted that engine across my garage and just went drinking. She done.
Nice RV dealer in Stafford. Had to make an emergency stop there once.
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 💪
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!
Not just a mechanic he is also a very impressive Miss Marple.
Fantastic tear down. Great narration. Really enjoyed that. Thanks for sharing
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! 😊😊😊
Looks like a mess to me. Thanks again for sharing this video with us.
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.
Great vid. thanks from an old motor cycle rider in Australia.
That was fantastic. Nice to see a more complicated repair process. I'm hoping for more motorcycles in the future.
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.
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.
Awesome vid, James. Love the root cause analysis at the end. This is way better than NCIS. Looking forward to pt. 2.
Brilliant video and another incredible deep dive into various engines and equipment. Disappointed that you didn't fit a briggs and Stratton 11hp into the bike frame
Briggs is Chinese garbage. HF Predator is the bee's knees (while still smelling like flied lice). 😁👍
Quite obvious you skooled, (I know), yourself before filming. I applaud you cuz the presentation is so much easier to follow than the book. The published words are tougher to edit and delete than the spoken oration and minor mumblings of a true pro mechanic in a family oriented vijayo. I tip my beer glass to you Sir.. K
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!
I'm enjoying this. A nice change of pace. I know you'll succeed. Looking forward to another episode of progress.
Nice detective work Doc.
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.
About the oil leaking from the shifter, this is what is happening with mine, Thx for showing me the part :>
You rock dude! Love your video/content quality.
Thanks
I loved the MacGyver'd slide hammer.
Love the “specialized tool”👍👍👍
Your knowledge on the bikes, seems like you have done this many times...if you havent, then do more! This is great content!
First time, but have watched a lot of @2Vintage videos and he inspired me. He makes it look easy.
@@jcondon1 I will check him out. Thanks.
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 🇦🇺
I am looking forward to seeing the rebuild of this motorcycle thanks for producing another quality video
Unbelievable how this small engine is complex and has so many parts and still, not that expensive.
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.
Hello James good job and resourceful in removing the pin. For the install put the entire body into a 290-310 deg F. Oven for about 1hr. The pin will probably drop in place. The difference in expansion rate between the aluminum and steel parts will give the necessary clearance. The torch can work but very little control on total temperature. Torch has too much temperature without having enough overall heat. The oven should give you good control on soaking the aluminum block to an even 300 deg. If you can shrink the pin in the freezer as well and maximum clearance differential will be achieved. You could probably remove the jug sleeve using the same procedure with oven. Might not be cost effective as they are cheap if ordering the clone knockoff parts. Looking forward to seeing you ride the bike.
thank you James
When the multi-meter comes out, good things happen 😀Came here for the video, stayed for the life lesson!
Hi James, very intriguing case of an engine failure...thanks for sharing. I would have checked the oil pump as well, just to be on the safe side. Could have suffered some damage or have some debris inside...
I checked it off camera and it was pumping well. There is also a bolt on the head I can remove once the engine is together. When cranked, oil should come out if everything is working.
I really enjoy your videos and look forward to seeing this finished
Good teardown video. EBay is a great source for used OE parts.
Just slightly more complex than a Briggs and Stratton. Nice change for sure.
Wow, that's a lot of parts. I just can't get a good system on my own on how to remember order and orientation to put parts back. I am in awe of folks who do this naturally.
Record the disassembly process with the tiny computer that every person carries in his/her pocket.
There requires a lot of investigative knowledge as well as mechanical know how when troubleshooting a blown engine.The removal of the starter switch and then discovering all of the leads spliced together was probably the most perplexing part for me.Like you said how would’ve they been able to even start the bike with a dead fault?
Nice work,looking forward to watching the reassemble.
You have to love a lack of maintenance. Always entertaining videos.
Love your videos and your attention towards detail.
Great job James.... favorite viewer from VT.
Great video, can’t wait for the next installment.
i reckon your failure diagnosis is spot on - i assume the engine doesn’t have a low oil sensor (even lawnmower engines have them)
No oil sensor :(
Jim I am amazed at this one , which is far different from your Honda OHV single Generator engines ,This couldn't have been your first tare down a motorcycle engine ,I can't wait for the build back you do on this, if you can get the bike back from your son, your skills are vast and make your Videos very much worth my time watching ,excellent work keep it up
This is my first motorcycle engine. But watch a lot of 2vintage videos and learned a few things from him.
I look forward to hearing it run.
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.
Very nice job so far. You're a braver man than I.
Tune in tomorrow-same Bat-time, same Bat-channel!
Great video, James, as usual! We’ve been watching for your output for a good while. Thanks!