Very impressed that you admitted and showed your mistakes as well as the shortcuts you were willing to take to get the bike ready. Obviously we know you wouldn’t normally do things like shave the nikasil, weld the piston, etc. But I think it’s cool that you owned it and didn’t hide it. That’s why you’re one of the best!
Thank you so much for these comments; you guys are awesome, seriously. Information on shortcuts and techniques/stories of what people did in a pinch can be scarce as I found out when I was looking for info in the midst of my problems with this 250R. People really don't seem to like to admit shortcuts or mistakes. I hope that these videos can help people when they come across a similar situation.
My mom bought a 250r brand new in 1990. She got pregnant with me 4 months later and the machine went into my grandmother's shed under a cover. My mom completely forgot about it until Grammy passed away when i was 23. As im helping with the estate liquidation i uncovered the thing. Still had all the warning stickers on it. Still had those rubber clutch and front brake perch covers. Mom was like "oh yea!! Shit i bought that brand new i don't even think i ran a full tank of fuel through it." I looked at her, andif she wasn't my mom i definitely would have said "the FUCKS wrong with you woman!?" Anyway i took the thing home, cleaned it up, rebuilt the carb, new gas tank, petcock, lines, air filter, oil etc. It wasn't a yfz450 but i had a ton of fun on it. For about 12 hours and it seized up. I was running it 34:1 too!! So i rebuilt the engine with a 323 bug bore kit and sold the engine. I then used that money to buy a 2005 yz250 engine, put the same 325cc kit i have in my yz250 in, all the fixins, lektron, you know the deal. Dude its night and day. Night and day. That yz250 engine is so superior man. I run it on c16 and klotz supertech at 36:1. I carry the front wheels in 3rd gear all the way up sand mountain.
What would you change on my 380R to make it faster? Thanks for watching my series!! Drop a like if you enjoyed it and consider subscribing for more content like this! You ROOOOOCK!!! 🤘🤘🤘
Some turbo action would be a fun experiment to see you tackle. Some snowmobile junkies have really honed in 2-stroke turbos. You can bring it from snow to sand 😉😉
Hey Mike, one last comment here at the end. NO SHAME BROTHER! Every single racer who ever lived going back to the dawn of racing of any vehicle ever raced has patched up, modified, harbored, band-aided, fabbed, refabbed, refabbed again, and duct taped their machine in a pinch to get her across the finish line in any place, in any case. Loved watching you improvise, adapt and overcome. GREAT SHOW! Plenty of tme now to order a new piston, send out the head for re-lining and adjusting gear reatio and tune for a reliable, top of the line winner!
I see why you titled this video a nightmare, but really, considering how many custom mods and how detailed the build is, I think that’s just how it’s goes sometimes, and the end result, wooooo buddy!! That thing sounds like a monster, idles like a high compression 500cc!! Another epic build Mike!! As I will say every single video you make, your attention to details, your ability to make things work and tenacity to finish projects is always amazing! I’ve been waiting to see how this build came out, and just as I expected, it’s a beast!! Awesome video as always man!!!
Wow man it's crazy how far this quad has come. Love everything you've done to it. Will we ever get a full build video on it like the banshee? Glad you are back man, love the videos
Thank you man, glad you like the journey! A start to finish video? I have a folder on my computer with all the files for that; it's a monster edit. One day... it'll just pop up on my feed 😂
Very impressive when you admit and point out your mistakes. Obviously we know you wouldn't normally do things like nikasil scraping, piston welding, etc. But I think it's great that you own it and don't hide it. That's why you're one of the best! Oh my god, how far this foursome has come. Love everything you did with it. Glad you're back, love the videos
Years back we were all heading out to a big race around 2 hours away. My buddy still hadn't finished his bike so he decided to ride inside the enclosed trailer to finish working on his bike. We get to the race and open the door to see a very sweetie and motion-sick beast of a man but he got the bike done in time.
I'm 52 as well.Growing up I was rough on my toys so it was either fix em myself or do without.I didn't realize how much it would help me throughout life.
Michael, I have to admit, I'm like alot of the other guys that feel like you should have kept the 250r in it's MX form. But this is your channel, and YOUR quad, and you wanted a drag bike. So, I respect that! And frankly, it's a SWEET looking machine!!! The motor itself is really a work of art! I've built some really nice XC race yfz's and 450r's in the 20+ years I've been riding and racing quads. But I've never done anything that comes anywhere even close to your 250r! That bike is just MEAN AF LOOKIN!!! Dude, the sound of your voice twice in this video is ABSOLUTELY PRICELESS!!!!!!!!!!!!!!!!!! 1. When you first romped on it, and felt the torque that bike puts out, you were so excited!! You sounded like you just might piss yourself!! LOL! 2. At about 1:09 you wound it out, and started grabbing for the front brakes, which weren't there anymore! And for a split second you thought you were either going to have to hit the "eject" button, or you might be going for a swim in that creek! Hysterical, only b/c you didn't wad it up!! Awesome video Sabo!!
Buddy in the red hoodie when you started it for the first time his face went to pure joy. Not even his bike and i could see how happy he was. Thats real love for what hes does.
You should have it re nickel celled again Michael. It will work by honing it out to cross hatch etch it inside the cylinder bore good. That's the main part of it. After you hand sand it really good.
One big thing about that piston skirt shaving is to bring it up to top Dead center first. T hen use A tool called A awl scribe. To score the outline of that area with them go over it with sharpie marker. I always make two lines the main cut line and what's called A over kill line for lead way.
That gives you room to work with and I highly recommend practicing on A old one first.,or A cheap new one. Cause your right about one part of it you really shouldn't try to.,or can't put back what's been cut off to get the right compression stroke in that engine. I highly recommend changing it out with the exact piston to with A new one again. As A fresh rebuild. Just remember about the top dead center trick tip first. Then scribe it out and double line mark it. And take some where to have it lathe cut down to size. Leave both lines on it gives you lead way to. For more compression and power stroke that way doing like that to out of the piston. Without totally ruining it. That other piston is off balance and Intrude.,or I call it un- trude. That's what's causing the noise and vibration to.
Man it’s crazy to watch this and be almost as excited as you are when you finally start it and run it! Love it bro, you always are a great push for me to get to work on my stuff. Love the content keep it coming!
I currently own and built my yamaha raptor 770cc it even has a plus 3mm intake valves and plus 2mm exhaust valves 105.5mm cylinder and piston plus 5mm stroker crankshaft efi controller with many other things. I prefer 23x7 up front and 22 inch rear tires plus its geared to the moon. Still hits the rev limiter on top. 😅 thanks for the content awesome builds, and fun to watch. I also modded my daughter's Yamaha blaster, stock was around 55mph or so, now it tops out at around 70mph. Its at the limits of pump gas for compression, full port n polish even worked over the transfer ports. 34mm intake and mikuni 34mm carb, tapped with the oil injection. Its geared up on the front sprocket and went a little smaller size out back. Also went with 23x7 up front and 22 inch tires out Back. In a drag race for two high line pole lengths it will eat a Polaris scrambler 400 2-stroke, until it runs out on top. My daughter absolutely loves riding. She is 20 years old. I didn't want her riding a big heavy atv like a Polaris sportsman 500 that weighs around 800 pounds. To me thats way more dangerous of she was to roll over. 320 pounds wet weight blaster is easier to kick off from a roll over. I also freed the intake and exhaust on the blaster. Been thinking about maybe getting another blaster frame to build that YZ500 yamaha blaster. Hmmm 😉
Man, I felt that struggle! Recently I have been pushing hard to get my dirt bike running before the snow arrives. It's been in pieces needing a new head, valves, and a piston for the last 12 months. KTM parts are back ordered like you wouldn't believe. Anyway after finally having all the parts and getting the engine back together for the first time since last fall, I had the new piston pin seize in the rod 5 minutes into the first test ride. So I took it home are tore it down again. I decided to put the old piston back in to confirm that the new piston was the issue. Then, during re-assembly the timing chain tensioner threads decided strip out (despite using a torque wrench) halting progress for yet another week. All I've been doing is tearing this engine down and putting it back together over and over for the last several weeks. Sadly, before I could get it going I ended up having knee surgery and had to put the bike away for yet another winter in pieces. It's been painful to say the least. Anyway, it was good to see you get a win, it made me smile! Great video as always!
Man, sounds like you're getting put through the ringer with that KTM. I guarantee you're learning a lot doing that and dealing with abnormal problems. It's a bitter sweet, but in the end, there is good that will come from that in my opinion. I hope your knee has a 100% recovery and you get back to riding before too long Jon!
@@MichaelSabo Thanks Mike! Yes, I am learning a lot, it's been a 4-stroke education cram session! lol. I'm looking forward to the spring time with a good knee and a running bike! I'll be tuning in to your channel this winter as always!
In France when we build tuned 2 strokes for 50cc mopeds we always do a « montage à blanc » to double Check if all the aftermarket/modifed part come along with the others ones, You still made the best content on YT Its normal to make mistakes ! Your projects are amazing sabo
After the last 250r video I had to order one of those exhaust pipes and after hearing it today I can’t wait for it to come in!!! Thanks for the awesome 250r content
Dude... I had a KE125 as a first bike and the piston skirt busted. Big ol chunk came out and got jammed in the bottom end bearing. I cleaned it out put it back together and it ran! The cracking skirt became a running theme on this bike. I just kept clearing it out and slapping it back together. (Like every day!!!) By the end it looked like a formula 1 piston. The skirt came up to the bottom ring so it was partially floating... This is a rotary valve intake motor so that wasn't an issue. The ENTIRE exhaust port being open to the crankcase also wasn't an issue surprisingly enough. The damn thing ran better that way I think! I ended up selling it running, with a quarter piston. Also if your rod was too short you'd be low on your deck height. so odds are your crank is stroked out excessively. Not sure if you ordered a stroker crank... You got one now though so stack up some base gaskets and open up the bottom of those ports! (Do that before replating...) Maybe your onto something, more CC's fo-sho!
Mass props for showing all the mistakes. There was a lot don’t get me wrong but takes balls to show all the mistakes. Quick note, when you do a stroker crank alot of the times it requires a specific piston due to the longer rod
This is the only RUclips chanel with lomg form videos that i actually watch the whole video. Mike's videos hold my attention throughout the vid. Great content.
I cant say this for every motor but many in history have uncovered the exhaust port on full top stroke. On a Merc outboard some do and some dont but it doesn't change performance much oddly enough. It can be just as likely to help stuff the case when the pipe echos back. Im sure these R motors have been dynoed enough over the decades to know what the verdict is.
We all make mistakes, it’s all about how we can be men and admit them and not be too embarrassed or ashamed or full of pride. I swear we would get along so well and could really build some stuff! Keep up the good content. Life long follower you have made me my friend!
Resourceful... Resourceful is where this is at. Finding solutions, no matter the situation. Good on ya, Mr. Sabo!! Your "we got this" attitude also brought goodresults. Now, that mosheen is like a big block Chevy in a shopping cart... Enjoy it and be safe out there! 😁
My biggest pet peeve is modifying mistakes to make something to work I don’t tolerate myself making mistakes and then trying stupid shit to mend the wounds then justifying it
we have all been there man. i have a cross threaded oil feed banjo bolt on my turbo rzr from a year ago. idiotic i know, a most likely over tightened, hollow bolt that could fail at any moment. you talking about “making it happen” reminded me of that. i’m ordering parts right now 😂 biiig props for showing the highs and lows
I see why we haven’t had a video in so long my boy is burnt and beating himself up trying to get the 250r built in time It’s all good homie we all make mistakes glad your back
My 250r just developed a rattle similar to your topend noise.. I pulled the counter balancer and I'm sending it to Dave moore for him to rebuild. I'm also probably going to freshen up the topend. Nice build man.
look man. a lot of us have been right there. props for your quick thinking and adapting in a pinch. this is how we learn brother...also the cylinder is ok the gap wont be any different then the ports
I had a similar experience with my 89 Blaster, my sleeve had a crack in the same exact spot on the transfer port and it somehow has ran for over 8 years on the same sleeve no problem!😂
Man, with all the money you have spent on quads you could have gotten a used LRD aluminum frame to build a drag bike. It is a lighter frame, then you could have still had the m309… imagine how sweet that would have been that to have 2 R’a, one for riding around with the guys and one that would have been a pure drag machine
For sure would be cool man! Not sure if you've seen my video on 250R frames, but the LRD aluminum frame isn't as light as you'd think - ruclips.net/video/th593OgBfGY/видео.htmlsi=JC18E0W8o0_YlftY
@@MichaelSaboThat’s nice to know. I always thought it’s lighter. I have been planning to build Trx250r with BRC 500 2-stroke engine. My goal is 70-75hp. I think it will be nice to nice with that 500cc primal torque.
The chipped nikasil can safely be ground back so that the two ports seem like one for the ring without disturbing the directional flow, but the replate may be complex, if you ever did it. Failing that just full race port the smaller cylinder - raise exhaust by 5mm and run shorter headers etc!
Finishing motors at the track has always ended up in peril for me. I blew up a 400 Yamaha that I just put the 440 kit in, because of rod stretch. It ran perfect until I really got on it and then the inevitable bog. It never made a bad sound though
You're dealing with problems any top racer deals with. If your choking on problems like this at the dune u can relate to the stress too racers have to deal with. You're just over doing it brother, just relax and try not to put so much on your shoulders, try to think of it like it's just a weekend of fun on the trails
Well done... I was so excited to watch the video and loved it... The fact that you can show your mistakes and man up to it shows the tipe of person you are... And the fact that you can show what you did wrong and how to fix it and what's the can work maby way and the right way makes you way much more than just a guy in his garage but more than a teatcher we're every one can learn something or everything.... Keep up the good work love your content.. Can't wait for the next video even if it's 3 ouers 👌🏻
love the fact you threw this vid together showing the issues man - im just learning how to build (really watching your vids is half of my schooling :D ) and its just humble and effing love it keep the humility brah! keep the vids and builds comin!!
The struggle is real..i greatly appreciate you showing us the mistakes and complications Sabo. Hey were all human dude and shit happens.. I have more respect for ya showing us all of it.. Instead of fast forwarding fast it all like alot of other people on here doing mechanic work.. You rock Dr.Quad 🤘
That really did turn out great Mike ! It was beyond what I expected for sure ! Oh, and don't beat up on yourself for the mishaps on the build, you know as well as anyone of us, it doesn't always go smoothly, which in turn allows our minds to be creative and fix those issues that arise such as you did on this build. Dude, it's another Two BulTacos on the build !
I can say even with the piston chopped it will probably run ok. I had a chunk the whole bottom of a piston on a 1992 blaster broke off during riding and I just kept riding it like that and after 1 year quad still ran ok. I eventually took motor apart and found the peace of piston down in the crank just bouncing around for a year.
Love your videos man!!! the attention to detail especially when it comes to weight savings and inertial mass is awesome to see!!!!!!!!!!!!! Keep up the Awesome work!!!!!!!!!!!!!!
You’re not a builder or service tech if you HAVEN’T done some BS like this. Content is still 💯… even with the screw ups. That’s the stuff we NEED to see for full appreciation 👍
I hate to be another inconvenience, but this should be expected when EVERY part is brand new.. you will have to re-torque everything at least once to be on the safe side. Thats why when I buy parts I put them on in stages, to see the aftermath of each stage. Amazing build though, keep up the hard work!
What a great build! That intake and exhaust are works of art. Glad you got there in the end. Great content as always. Keep your head up, you should be proud of yourself.
Very excited to see the new content and i love my bcg shirt i didnt know it said" i helped save a sport quad" love the marketing brother 😅 you da boss sabo keep killing the game! I got some more done to the yz too!
Everyone in the comments keeps praising Mike for showing his mistakes,I personally sa would have stopped at the Nikisil issue.but what you gonna do,it can be fixed. You live you learn. But the fact that he put himself out there so we could learn from his mistakes and not caring about all the know it all's and the people that never make mistakes and what they all have to say is big iam gonna learn from that as well
Another great build and excellent video! I appreciate that you always keep it real and show the issues that you run into and you’re honest with everyone. Keep up the great work Mike!
Not sure about the holes/pits around the skirt. I see the idea, to prevent nip points but the piston is cooled through the skirt so the crown may run hotter?
I have waited patiently for this video. Glad to see you had a success. Personally I love the mx setup on this quad over the drag setup but that’s just me. Keep these awesome videos coming. I can’t get enough of the hilarious skits you do through your videos too, keep slam dunking shit in that trash can! Booooom
I'm under 180. I'll have a weigh in tomorrow I believe. Just saying bro. In all seriousness love the build. I hope to see an mx set up for the non dune days
The build came out sweet but I would have kept the rear axle you had with the other setup. Would kept it the same width just added the swingarm. That's how we do it over here at the Oregon dunes. It would make a great duner/ sand drag/ tree shot killer. Still a cool build.
Wish Honda made sport atvs again.Had a 1988 250r Mark Baldwin helped me piece together on a budget.Loved racing it against 4 stroke quads and spanking them at Smith Road in Medina
I think the bike may need more paddle. My engine builder put my 380lynx on a dyno and recommended a 72 roll out 10 paddle extremes. I havent put them on yet but i dont have extended swingarm. My guess is its going to be hard to keep the front end down.
That was a crazy engine build with all the problems you have it was a awesome video!! I got a question how do you break in your 4 strokes I have a ltr450 that I’m building and I rebuilt the whole motor like new crank, piston, bearings etc. it’s all most done just don’t know how to break it in. Thanks man you are the best
![Twenty One Pilots - “The Line” (from Arcane Season 2) [Official Music Video]](http://i.ytimg.com/vi/E2Rj2gQAyPA/mqdefault.jpg)
Very impressed that you admitted and showed your mistakes as well as the shortcuts you were willing to take to get the bike ready. Obviously we know you wouldn’t normally do things like shave the nikasil, weld the piston, etc. But I think it’s cool that you owned it and didn’t hide it. That’s why you’re one of the best!
Agreed !
thats what i like about it also . it was an experiment to see if he could make it work for the trip . id let him build a race quad for me .
Thank you so much for these comments; you guys are awesome, seriously. Information on shortcuts and techniques/stories of what people did in a pinch can be scarce as I found out when I was looking for info in the midst of my problems with this 250R. People really don't seem to like to admit shortcuts or mistakes. I hope that these videos can help people when they come across a similar situation.
Man I still need some of your stickers for my 4wheelers and my sons lol
@@MichaelSabo for sure man
My mom bought a 250r brand new in 1990. She got pregnant with me 4 months later and the machine went into my grandmother's shed under a cover. My mom completely forgot about it until Grammy passed away when i was 23. As im helping with the estate liquidation i uncovered the thing. Still had all the warning stickers on it. Still had those rubber clutch and front brake perch covers. Mom was like "oh yea!! Shit i bought that brand new i don't even think i ran a full tank of fuel through it." I looked at her, andif she wasn't my mom i definitely would have said "the FUCKS wrong with you woman!?" Anyway i took the thing home, cleaned it up, rebuilt the carb, new gas tank, petcock, lines, air filter, oil etc. It wasn't a yfz450 but i had a ton of fun on it. For about 12 hours and it seized up. I was running it 34:1 too!! So i rebuilt the engine with a 323 bug bore kit and sold the engine. I then used that money to buy a 2005 yz250 engine, put the same 325cc kit i have in my yz250 in, all the fixins, lektron, you know the deal. Dude its night and day. Night and day. That yz250 engine is so superior man. I run it on c16 and klotz supertech at 36:1. I carry the front wheels in 3rd gear all the way up sand mountain.
What would you change on my 380R to make it faster? Thanks for watching my series!! Drop a like if you enjoyed it and consider subscribing for more content like this! You ROOOOOCK!!! 🤘🤘🤘
nah you rock brother keep on keepin on
@sethhern1460 thank you bro!
@fadedlight8596 that only works if the cylinder is designed for a spacer. It would make the port timings off and run poorly unfortunately.
Some turbo action would be a fun experiment to see you tackle. Some snowmobile junkies have really honed in 2-stroke turbos. You can bring it from snow to sand 😉😉
Especially with the ability to hone in your ignition.
Hey Mike, one last comment here at the end. NO SHAME BROTHER! Every single racer who ever lived going back to the dawn of racing of any vehicle ever raced has patched up, modified, harbored, band-aided, fabbed, refabbed, refabbed again, and duct taped their machine in a pinch to get her across the finish line in any place, in any case. Loved watching you improvise, adapt and overcome. GREAT SHOW! Plenty of tme now to order a new piston, send out the head for re-lining and adjusting gear reatio and tune for a reliable, top of the line winner!
The 4-5 years since ive found Michael sabos channel i can actually say ive never stopped watching this channel 🔥🔥🔥
That is a major compliment man, thank you 🤘
The way the pops hit on idle and the instant throttle response. One of the best sounding 2 strokes on the planey
I see why you titled this video a nightmare, but really, considering how many custom mods and how detailed the build is, I think that’s just how it’s goes sometimes, and the end result, wooooo buddy!! That thing sounds like a monster, idles like a high compression 500cc!! Another epic build Mike!! As I will say every single video you make, your attention to details, your ability to make things work and tenacity to finish projects is always amazing! I’ve been waiting to see how this build came out, and just as I expected, it’s a beast!! Awesome video as always man!!!
Wow man it's crazy how far this quad has come. Love everything you've done to it. Will we ever get a full build video on it like the banshee? Glad you are back man, love the videos
Thank you man, glad you like the journey! A start to finish video? I have a folder on my computer with all the files for that; it's a monster edit. One day... it'll just pop up on my feed 😂
Very impressive when you admit and point out your mistakes. Obviously we know you wouldn't normally do things like nikasil scraping, piston welding, etc. But I think it's great that you own it and don't hide it. That's why you're one of the best! Oh my god, how far this foursome has come. Love everything you did with it. Glad you're back, love the videos
Years back we were all heading out to a big race around 2 hours away. My buddy still hadn't finished his bike so he decided to ride inside the enclosed trailer to finish working on his bike. We get to the race and open the door to see a very sweetie and motion-sick beast of a man but he got the bike done in time.
I'm 52 as well.Growing up I was rough on my toys so it was either fix em myself or do without.I didn't realize how much it would help me throughout life.
Michael, I have to admit, I'm like alot of the other guys that feel like you should have kept the 250r in it's MX form. But this is your channel, and YOUR quad, and you wanted a drag bike. So, I respect that! And frankly, it's a SWEET looking machine!!! The motor itself is really a work of art!
I've built some really nice XC race yfz's and 450r's in the 20+ years I've been riding and racing quads. But I've never done anything that comes anywhere even close to your 250r! That bike is just MEAN AF LOOKIN!!!
Dude, the sound of your voice twice in this video is ABSOLUTELY PRICELESS!!!!!!!!!!!!!!!!!!
1. When you first romped on it, and felt the torque that bike puts out, you were so excited!! You sounded like you just might piss yourself!! LOL!
2. At about 1:09 you wound it out, and started grabbing for the front brakes, which weren't there anymore! And for a split second you thought you were either going to have to hit the "eject" button, or you might be going for a swim in that creek! Hysterical, only b/c you didn't wad it up!!
Awesome video Sabo!!
Buddy in the red hoodie when you started it for the first time his face went to pure joy. Not even his bike and i could see how happy he was. Thats real love for what hes does.
You should have it re nickel celled again Michael. It will work by honing it out to cross hatch etch it inside the cylinder bore good. That's the main part of it. After you hand sand it really good.
One big thing about that piston skirt shaving is to bring it up to top Dead center first. T hen use A tool called A awl scribe. To score the outline of that area with them go over it with sharpie marker. I always make two lines the main cut line and what's called A over kill line for lead way.
That gives you room to work with and I highly recommend practicing on A old one first.,or A cheap new one. Cause your right about one part of it you really shouldn't try to.,or can't put back what's been cut off to get the right compression stroke in that engine. I highly recommend changing it out with the exact piston to with A new one again. As A fresh rebuild. Just remember about the top dead center trick tip first. Then scribe it out and double line mark it. And take some where to have it lathe cut down to size. Leave both lines on it gives you lead way to. For more compression and power stroke that way doing like that to out of the piston. Without totally ruining it. That other piston is off balance and Intrude.,or I call it un- trude. That's what's causing the noise and vibration to.
Just wanted to say i have alot of respect for you because you showed all your mistakes. We all been there and still do make mistakes.
Man it’s crazy to watch this and be almost as excited as you are when you finally start it and run it! Love it bro, you always are a great push for me to get to work on my stuff. Love the content keep it coming!
I currently own and built my yamaha raptor 770cc it even has a plus 3mm intake valves and plus 2mm exhaust valves 105.5mm cylinder and piston plus 5mm stroker crankshaft efi controller with many other things. I prefer 23x7 up front and 22 inch rear tires plus its geared to the moon. Still hits the rev limiter on top. 😅 thanks for the content awesome builds, and fun to watch. I also modded my daughter's Yamaha blaster, stock was around 55mph or so, now it tops out at around 70mph. Its at the limits of pump gas for compression, full port n polish even worked over the transfer ports. 34mm intake and mikuni 34mm carb, tapped with the oil injection. Its geared up on the front sprocket and went a little smaller size out back. Also went with 23x7 up front and 22 inch tires out Back. In a drag race for two high line pole lengths it will eat a Polaris scrambler 400 2-stroke, until it runs out on top. My daughter absolutely loves riding. She is 20 years old. I didn't want her riding a big heavy atv like a Polaris sportsman 500 that weighs around 800 pounds. To me thats way more dangerous of she was to roll over. 320 pounds wet weight blaster is easier to kick off from a roll over. I also freed the intake and exhaust on the blaster. Been thinking about maybe getting another blaster frame to build that YZ500 yamaha blaster. Hmmm 😉
Man, I felt that struggle! Recently I have been pushing hard to get my dirt bike running before the snow arrives. It's been in pieces needing a new head, valves, and a piston for the last 12 months. KTM parts are back ordered like you wouldn't believe. Anyway after finally having all the parts and getting the engine back together for the first time since last fall, I had the new piston pin seize in the rod 5 minutes into the first test ride. So I took it home are tore it down again. I decided to put the old piston back in to confirm that the new piston was the issue. Then, during re-assembly the timing chain tensioner threads decided strip out (despite using a torque wrench) halting progress for yet another week.
All I've been doing is tearing this engine down and putting it back together over and over for the last several weeks. Sadly, before I could get it going I ended up having knee surgery and had to put the bike away for yet another winter in pieces. It's been painful to say the least. Anyway, it was good to see you get a win, it made me smile! Great video as always!
that sucks dude . prayers for a fast recovery on the knee and the bike for next spring
Man, sounds like you're getting put through the ringer with that KTM. I guarantee you're learning a lot doing that and dealing with abnormal problems. It's a bitter sweet, but in the end, there is good that will come from that in my opinion. I hope your knee has a 100% recovery and you get back to riding before too long Jon!
@@MichaelSabo Thanks Mike! Yes, I am learning a lot, it's been a 4-stroke education cram session! lol. I'm looking forward to the spring time with a good knee and a running bike! I'll be tuning in to your channel this winter as always!
@@867diesel Thanks man, I appreciate it! Spring will be a good time!
@@JonathanVee right on
In France when we build tuned 2 strokes for 50cc mopeds we always do a « montage à blanc » to double Check if all the aftermarket/modifed part come along with the others ones,
You still made the best content on YT Its normal to make mistakes !
Your projects are amazing sabo
After the last 250r video I had to order one of those exhaust pipes and after hearing it today I can’t wait for it to come in!!! Thanks for the awesome 250r content
Awesome to hear man; Scott at SMR is the man! Please let him know where you heard of him!
Glad you are back!!👍🏻 Hope things are getting caught up in the shop. Can’t wait to see what’s coming. Thanks Mike for what you do!!👍🏻
Dude... I had a KE125 as a first bike and the piston skirt busted. Big ol chunk came out and got jammed in the bottom end bearing. I cleaned it out put it back together and it ran! The cracking skirt became a running theme on this bike. I just kept clearing it out and slapping it back together. (Like every day!!!) By the end it looked like a formula 1 piston. The skirt came up to the bottom ring so it was partially floating... This is a rotary valve intake motor so that wasn't an issue. The ENTIRE exhaust port being open to the crankcase also wasn't an issue surprisingly enough. The damn thing ran better that way I think! I ended up selling it running, with a quarter piston.
Also if your rod was too short you'd be low on your deck height. so odds are your crank is stroked out excessively. Not sure if you ordered a stroker crank... You got one now though so stack up some base gaskets and open up the bottom of those ports! (Do that before replating...) Maybe your onto something, more CC's fo-sho!
Been missing your content! Welcome back 😎 The build came out great! Always learn so much from these videos.
Awesome to hear that and thank you for waiting to watch this one man!
Mass props for showing all the mistakes. There was a lot don’t get me wrong but takes balls to show all the mistakes. Quick note, when you do a stroker crank alot of the times it requires a specific piston due to the longer rod
This is the only RUclips chanel with lomg form videos that i actually watch the whole video. Mike's videos hold my attention throughout the vid. Great content.
Very big compliment man, thank you.
That engine sound is amazing, best 2-stroke engine I’ve even heard
I cant say this for every motor but many in history have uncovered the exhaust port on full top stroke. On a Merc outboard some do and some dont but it doesn't change performance much oddly enough. It can be just as likely to help stuff the case when the pipe echos back. Im sure these R motors have been dynoed enough over the decades to know what the verdict is.
We all make mistakes, it’s all about how we can be men and admit them and not be too embarrassed or ashamed or full of pride. I swear we would get along so well and could really build some stuff! Keep up the good content. Life long follower you have made me my friend!
Resourceful... Resourceful is where this is at. Finding solutions, no matter the situation. Good on ya, Mr. Sabo!! Your "we got this" attitude also brought goodresults.
Now, that mosheen is like a big block Chevy in a shopping cart... Enjoy it and be safe out there! 😁
Great to see the video man!! Thank you for the product unboxing on the intake. Glad you like it!!
wow you really went through it on this build ...kudos for showing us all the problems along the way
The sound is just absolutely pure.
My biggest pet peeve is modifying mistakes to make something to work I don’t tolerate myself making mistakes and then trying stupid shit to mend the wounds then justifying it
tough man fr you made accident after accident
it happens to everyone and i feel you I'm glad that you were able to get over it and fix your mistakes
Split video with the wheel turning is a great idea! Glad to see another video of yours!
That has to be the throatiest 250R I have ever heard. Kudos to not giving up!!!
we have all been there man. i have a cross threaded oil feed banjo bolt on my turbo rzr from a year ago. idiotic i know, a most likely over tightened, hollow bolt that could fail at any moment. you talking about “making it happen” reminded me of that. i’m ordering parts right now 😂 biiig props for showing the highs and lows
I see why we haven’t had a video in so long my boy is burnt and beating himself up trying to get the 250r built in time
It’s all good homie we all make mistakes glad your back
Much appreciated man - I was indeed burnt out there for a minute; it's time to get back on the horse!
Been patient waiting for this video for a while. Needed a pick me up today. Happy for this video.
I appreciate you waiting and glad it could be a pick me up for you 🤘👊
@@MichaelSabo Thanks Mike. Great job on the 250R It came out super sick bro.
My 250r just developed a rattle similar to your topend noise.. I pulled the counter balancer and I'm sending it to Dave moore for him to rebuild. I'm also probably going to freshen up the topend. Nice build man.
look man. a lot of us have been right there. props for your quick thinking and adapting in a pinch. this is how we learn brother...also the cylinder is ok the gap wont be any different then the ports
I had a similar experience with my 89 Blaster, my sleeve had a crack in the same exact spot on the transfer port and it somehow has ran for over 8 years on the same sleeve no problem!😂
I think a lot of times, we worry about stuff like that, but its not actually as serious as we think. But then again, it could totally tank an engine 😂
Liking the solo camping as I also do quite a bit of it. Fun to see others enjoying Gods creation, and their experiences Great video!
Man, with all the money you have spent on quads you could have gotten a used LRD aluminum frame to build a drag bike. It is a lighter frame, then you could have still had the m309… imagine how sweet that would have been that to have 2 R’a, one for riding around with the guys and one that would have been a pure drag machine
For sure would be cool man! Not sure if you've seen my video on 250R frames, but the LRD aluminum frame isn't as light as you'd think - ruclips.net/video/th593OgBfGY/видео.htmlsi=JC18E0W8o0_YlftY
@@MichaelSaboThat’s nice to know. I always thought it’s lighter. I have been planning to build Trx250r with BRC 500 2-stroke engine. My goal is 70-75hp. I think it will be nice to nice with that 500cc primal torque.
The chipped nikasil can safely be ground back so that the two ports seem like one for the ring without disturbing the directional flow, but the replate may be complex, if you ever did it.
Failing that just full race port the smaller cylinder - raise exhaust by 5mm and run shorter headers etc!
That was absolutely bad ass man. Never seen anything like that. Loved every second
Thank you for the feedback; glad you enjoyed it!
Thank you man for the best and hard work 👍
Finishing motors at the track has always ended up in peril for me. I blew up a 400 Yamaha that I just put the 440 kit in, because of rod stretch. It ran perfect until I really got on it and then the inevitable bog. It never made a bad sound though
I’ve been waiting for this video forever 😂 love the content man keep it up!
Oh snaps sabo is back let’s go love this build bro so sick
🤘🤘🤘 thanks brotha!
You're dealing with problems any top racer deals with. If your choking on problems like this at the dune u can relate to the stress too racers have to deal with. You're just over doing it brother, just relax and try not to put so much on your shoulders, try to think of it like it's just a weekend of fun on the trails
I appreciate seeing the struggle, lessons all through out this one. Great video!
Glad you enjoyed the journey man!
Well done... I was so excited to watch the video and loved it... The fact that you can show your mistakes and man up to it shows the tipe of person you are... And the fact that you can show what you did wrong and how to fix it and what's the can work maby way and the right way makes you way much more than just a guy in his garage but more than a teatcher we're every one can learn something or everything.... Keep up the good work love your content.. Can't wait for the next video even if it's 3 ouers 👌🏻
I literally never did a break in. I build em and rip em instantly every time, and thus far, I've never once had anything go wrong.
Awesome build. Can't get over that sound.
love the fact you threw this vid together showing the issues man - im just learning how to build (really watching your vids is half of my schooling :D ) and its just humble and effing love it keep the humility brah! keep the vids and builds comin!!
The struggle is real..i greatly appreciate you showing us the mistakes and complications Sabo.
Hey were all human dude and shit happens..
I have more respect for ya showing us all of it..
Instead of fast forwarding fast it all like alot of other people on here doing mechanic work..
You rock Dr.Quad 🤘
All part of the game! I'm glad you enjoyed watching the struggle and thank you for the feedback!
That really did turn out great Mike ! It was beyond what I expected for sure ! Oh, and don't beat up on yourself for the mishaps on the build, you know as well as anyone of us, it doesn't always go smoothly, which in turn allows our minds to be creative and fix those issues that arise such as you did on this build. Dude, it's another Two BulTacos on the build !
I can say even with the piston chopped it will probably run ok. I had a chunk the whole bottom of a piston on a 1992 blaster broke off during riding and I just kept riding it like that and after 1 year quad still ran ok. I eventually took motor apart and found the peace of piston down in the crank just bouncing around for a year.
Love your videos man!!! the attention to detail especially when it comes to weight savings and inertial mass is awesome to see!!!!!!!!!!!!! Keep up the Awesome work!!!!!!!!!!!!!!
Thank you man; glad you enjoyed that! 🤘
You’re not a builder or service tech if you HAVEN’T done some BS like this. Content is still 💯… even with the screw ups. That’s the stuff we NEED to see for full appreciation 👍
What an insane video.!
Congrats on this build, your videos are amazing, man!
Where there's a will there's a way. Sick engine.
Awesome!! I have been waiting for this episode!!!!
Sounds better than most 500, thats thump is impressive 👌🏼👍🏼
Thank you man; in person it sounds even better!
1:07:02 That thing sounds so ALIVE man! CRISP!!!
Awesome video Mike, can't wait for the Vette series..
Glad you enjoyed it Derred! Thank you for watching 🤘👊
Dig the new design. Suzukis were my favorite. Yellow and blue my fav color scheme. Thx for great vid.
Awesome video. I’m got the same problem with my tank cover not the gas cap seal all the way up
I hate to be another inconvenience, but this should be expected when EVERY part is brand new.. you will have to re-torque everything at least once to be on the safe side. Thats why when I buy parts I put them on in stages, to see the aftermath of each stage. Amazing build though, keep up the hard work!
Awesome series Mike
Thank you Chad!
Watched the whole video, it kept me on the edge of my seat the entire time!
What a great build! That intake and exhaust are works of art. Glad you got there in the end. Great content as always. Keep your head up, you should be proud of yourself.
Very excited to see the new content and i love my bcg shirt i didnt know it said" i helped save a sport quad" love the marketing brother 😅 you da boss sabo keep killing the game! I got some more done to the yz too!
I appreciate the love Timmy! Thank you for supporting by repping my merch. Glad to hear you're getting work done on your YZ 🤘
Respect owning your mistakes - we're all human but few have the integrity to keep it real! 🇦🇺💪
Finally a sabo video. Let’s goooo
thats awesome dude !!! powersports nation saved the day
For real man, awesome people!
@@MichaelSabo they truly are
Everyone in the comments keeps praising Mike for showing his mistakes,I personally sa would have stopped at the Nikisil issue.but what you gonna do,it can be fixed. You live you learn. But the fact that he put himself out there so we could learn from his mistakes and not caring about all the know it all's and the people that never make mistakes and what they all have to say is big iam gonna learn from that as well
Another great build and excellent video! I appreciate that you always keep it real and show the issues that you run into and you’re honest with everyone. Keep up the great work Mike!
I have to say this was quite the video The nail just everything
Yea man, lots of mistakes and errors, but a victory in the end!
This thing is sick man! I LOVE the build videos. Hoping for more riding videos next season as well. You the man Sabo!
By the way. Ive been checking daily for this video Michael. Thank you for your content.
Looking great! Id almost build a complete new seat bracket setup that’s different on the bottom of the seat and frame specific
44:16 dam bro that will make a difference that and the wheels rolling freely
Not sure about the holes/pits around the skirt.
I see the idea, to prevent nip points but the piston is cooled through the skirt so the crown may run hotter?
I have waited patiently for this video. Glad to see you had a success. Personally I love the mx setup on this quad over the drag setup but that’s just me. Keep these awesome videos coming. I can’t get enough of the hilarious skits you do through your videos too, keep slam dunking shit in that trash can! Booooom
Great video! That motor has a BEAUTIFUL SOUND!😊
Thank you Victor - in person is even better!
there was a way to run the big bore at the end, you could've put more gaskets under the cylinder to lift it up
I'm under 180. I'll have a weigh in tomorrow I believe. Just saying bro. In all seriousness love the build. I hope to see an mx set up for the non dune days
The build came out sweet but I would have kept the rear axle you had with the other setup. Would kept it the same width just added the swingarm. That's how we do it over here at the Oregon dunes. It would make a great duner/ sand drag/ tree shot killer. Still a cool build.
Wish Honda made sport atvs again.Had a 1988 250r Mark Baldwin helped me piece together on a budget.Loved racing it against 4 stroke quads and spanking them at Smith Road in Medina
You and so many others. WTH was Honda thinking?
Still praying for the return
I think if you do some shock adjustments that will help you. For drag racing you need to take some softness out.
far from the first time you got it what a beast !!!
great pod cast, im impressed. very entertaining.
not so much on rebuilding stuff.
i get it.
I think the bike may need more paddle. My engine builder put my 380lynx on a dyno and recommended a 72 roll out 10 paddle extremes. I havent put them on yet but i dont have extended swingarm. My guess is its going to be hard to keep the front end down.
Just finished the vid, great video man keep up the good work! So exited to see that 380 and it was worth the wait
Man that thing sounds great and that pipe is sick and air filter sick man she a mean machine
Awesome video man, been waiting for the next mike sabo upload. Always ready for the next 🤙 keep going man!
I always appreciate the love Wyatt! 🤘
That was a crazy engine build with all the problems you have it was a awesome video!! I got a question how do you break in your 4 strokes I have a ltr450 that I’m building and I rebuilt the whole motor like new crank, piston, bearings etc. it’s all most done just don’t know how to break it in. Thanks man you are the best
Hot cold hot cold hot cold a bunch of times. 5mins,15mins,25mins. Then Send it!! Goodluck
What a sicc build love 250Rs