Had one of these in high school. I tuned and polished the ports, and sanded down the jug for higher compression. It was an absolute riot and weighed in at only around 50lbs, so it would do about 35mph on the straight. Wouldn't want to go much faster than that on bicycle tires and a single tiny disk brake, but I loved it!
I got a cb750 for free from my mates dad because they didn’t want it (it had 900,000 ks on it) and I chucked it in my push bike it was fun but jeeez it was scary I think best I done on it was about 110 on a flat unpopulated road could have done more but didn’t wanna die (needed new back breaks after) there was basically more engine than bike and I never got in trouble for it
That durability test was wack. These are actually pretty reliable engines. I've put quite A few miles on my last one and the piston still looked brand new before I sold it. You guys ran HALF the amount of oil you should be running for break in, that failure is clearly from heat... the piston got too hot and the high rpms broke the molten piston... Disconnect the radiator on a brand new KTM and you'll get the same result....
I agree. They needed to run it with lots of 2 stroke oil. These are air-cooled engines so need the flow of air from moving forwards quickly. They needed to simulate the airflow with a fan. Fake channel. Fake news
@@michaelsawyer that's why I mentioned that it's like running a motorcycle without the radiator, of course it'll overheat and damage the piston. And it overheated even faster cause they used weed wacker premix. Give these things a bad name. People think they'll only last a few days, when really the last years.
Running too much oil in premix actually leans out the mixture and makes MORE heat. If you want an engine to run cool then you need more fuel, and the carb needs to be properly jetted.
I built one of these kits three years ago. I got a steel cylinder jug and high compression head with a real crank case and piston kit from Bicycle Motor Works in Pennsylvania. It took me two months to build the bike and make it a "look-a-like" 1910 Indian. I've taken it to shows and won a few trophies and such... runs out at 48mph (scary for what is actually a bicycle) and is super fun to cruise around on. I have well over 500 miles on it and sill enjoy riding it all the time. - these bikes can be a he'll of a lot of fun!
I had one of these in college and rode them all around campus! It was AWESOME! I learned so much about 2 strokes and Carbs (I am a Software Engineer so no school on these) I even re balanced the crank shaft! These things are so fun!
The fact that this guy built bikes for wallmart makes a lot of sense. Now I know what the kind of person that installs a fork backwards on a wallmart bike looks like.
Truth be told, there were only a few companies that built the bikes right. The one worked for would get calls to fix the bikes other companies screwed up. We got out of the business because of Walmarts business practices. At the beginning of the season and periodically throughout, Walmart would want 300 bikes built in a weekend. Companies like mine were brought in after those bikes were built. In our province, there were these two German guys that would slam bikes together, get paid, and bolt. They would bring me in and pay piece work for maintaining stock, fixing bikes the two numbnuts built. But here is the kicker. Walmart would take back any bikes for any reason! Flat tire? Walmart would give you a refund or another bike! The flat tire bike? Before we came along, it would go in the trash! Walmart did not and does not care if the bikes work...if they sell it great! If it came back...so I just write it off as a loss and still get credit for it. They had no desire to have the bikes built decently because they did not want to pay us to do so. So instead of building a shitty bike, We left the business. I built custom bikes and sold them for a while....now I just hobby bikes.
@Thomas Kent It's possible, just keep an eye out in spring. They are probably having a ton of bikes built right now. Usually, at least here, they will put about 150 or more out in front of the store or have some big display...people will be snapping them up. Soon after the returns will start. Most will be bikes not built properly and some with flat tires etc...that is the time to start checking dumpsters or those big construction bins around back. 👍
@@POPPASHANGOthey lock thier dumpsters if not they are connected to the stores building.they do not will not let some one get something they couldn't make money on but spent money for any one for any reason.then ya have law enforcement.if ya got a Wal-Mart ya might have laws forbidding dumpster diving.pre wall mart eraa ,I do remember a time of no wall marts.....I think they came with the big change as I call it,and that change,some good came but also bullshit too.i know it'd all part of our evolution but in my opinion wallmart is one reason why our jobs went to China and contributed to thier slave market.and here we are now.wallmart is the go to place and thier shit made in China decreases in value.and you will have issues if not serious issues eventually.
keep in mind that the engines require the cold air running over them (from the bike's movement) to cool themselves. They likely could have lasted significantly longer on the road
I bought my kit when gas was nearing 5 buck a gallon and still running strong 8 years and 3500 miles later I'm sure there is a Rev limit and it's not wide open with no air thru the fins 😅
@@henlohenlo689 i would recommend an 80cc engine kit upgrade to a hub drive sprocket, different cylinder head for better cooling. Vibration is an issue so you have to use a thread locking compound and inspect everything frequently. Replacement parts are cheap.
@@henlohenlo689 I ride mine to work everyday. I've seen people in Bogota Columbia riding them through the city. I doubt your traffic is heavier than that.
I’m 13 and I have the same cheap motor kit from Amazon on my bike currently, I have learned so much off of these little engines it’s insane and it’s my gateway into motorcycles in general and I have 243 miles on it so far and more to come. There awesome motors for people getting into engines or just trying to have a little fun just make sure you research a lot about them or they will break faster than they can ship from china
That looks like a bike berry fzero, theyre like 800, for the price they should come with some good tires. Hookworms are pretty well recommended from what I've seen in the motorized bike comminity
When I was 13, I built a 16" motorised bike with a 31cc 2 stroke whipper snipper motor. That was driven via a machined shaft onto the rear tyre. Would do 63km/h (Australia) and then..... went N2O injection with some creative engineering and could get up around the 80km/h mark. Looking back that was nuts.
I have built several of those bikes. I actually went through 3 engines on one bike. But, set up properly, I did get over 2000 miles out of one of the engines. Not at full throttle, I kept my top speed to 20 mph. There is one part on those bike kits that will kill you, and that is the clamp on chain tensioner with the little plastic pulley for the motor chain. I had one get sucked into the rear wheel once, it destroyed the wheel, locked it up, and I crashed hard, onto concrete. I was riding in a bike lane, and was fortunate enough to crash to the right, onto the sidewalk, instead of to the left into traffic, where I would have been crushed by cars. NEVER use those things. You can get tensioners that mount to the motor. And that rag joint rear sprocket is junk as well. No possible way to keep it centered. You can get a clamshell rear sprocket mount that clamps to the rear wheel hub. You absolutely HAVE to have a front brake with these things. The coaster brake on a Walmart bike is completely worthless.
E-bikes have the most configurations you can get trikes bikes moped scooters motorcycles with many different power levels and options available, e-bikes have very good reliability and you can even get a foldable solar panel to charge your bike when you're not at home, it takes me on a full charge about $0.05 worth of electricity and that can get me 35 miles on just the throttle or 70 miles if I help by pedaling, when I got my first e-bike I didn't see many around town but now there's a lot of bikes and motorized bikes around
As a bigger guy myself, I think I have to finally point out the obvious size/weight difference between Sean and Craig when it comes to these head to head battles. Sean needs to be wearing a backpack full of ballast to even the scores! Big guys unite!! Thanks for the laughs guys!
@@Johny40Se7enyou realize some people are just naturally larger, right? And I don't mean the fatlogic definition of "naturally larger". On top of that it takes all of ten minutes to fill a backpack with ballast
@@Coastal_Cruzerif your fat 90% of the time it's because you eat too much it don't exercise enough if your are fat in 90% of cases it is your own fault
I'm over 300lbs and put one on a beach cruiser, put a couple hundred miles on mine befor it got an air leak and I couldn't figure out where and just sold it
One reason I love mopeds, is because they are still true to the original motorcycles. Simple engine with one gear, and pedal cranks... WHAT YOU WANT IS A WHIZZER.
@@Thadude701 i’m just playing, I’ve ridden plenty of mopeds. It’s what got me started off. But a good motorcycle is a whole lot more fun. I just like to push people’s button sometimes lol
@@hutchersonhomeremodel8771 I started on mopeds when I was ten ,I'm 55 and still have a motobecane in the garage with a 73 and a 95 Harley.i like bikes too and also getting a rise outta someone lol.
I own a cr250r race bike, a ninja, and various other toys. My 80cc (66cc) motorized bike kit is my favorite thing to ride. I’ve put over 2k miles on it so far. Original engine too! I’ve tried blowing it up by mixing the oil 1-1 and it smoked out the street like a diesel. These things are amazing. Best 120 dollars I’ve ever spent.
@@tylerseabook9423 too much oil in 2 stroke fuel can trash a motor. It seems contradictory, but the extra oil increases the “thickness” of the fuel mix and in many 2 stroke carbs will result in a leaner fuel/air mix. Running lean results in more heat, and on an air cooled motor that’s really not good. My neighbor has a small engine/ chainsaw shop, and sees this happen a lot. Typically it’s an inexperienced operator that knows just enough to be dangerous. They aren’t sure of the mix ratio and just add oil until it smokes hard and figure they’re good to go because “more oil should be better, right?”. Nope
The fact that the cheapest motor stayed on the frame with only one motor was a shock! You normally have to check the tightness of the mounts because of the vibration from the engine. I've had a 2 stroke fly from between my legs this way. Be safe y'all!
False unless you're using used motor oil. With proper 2 stroke oil then 40:1 is plenty. 32:1 isn't even needed unless you have tight tolerances custom stuff. Too much oil like 16:1 will lean out the mix and overheat the motor
@@KClO3 No, 16:1 is correct for a couple of tanks and 25/1 after that. Running this type of air cooled motor wide open and being stationary is a no no.
@@mikesouth6490 no it isn't. It's simply not true. 40:1 is plenty. Many run 50:1 from the start without harm. Too much oil will trap the heat and lean the mixture of gas to air which will also cause more heating. Who was talking about running it stationary?
@@KClO3 if you read the manual and info avabile it says 16:1 break-in and 25:1 after I run mine at 32:1 with no problems for the last 3 years. Also, they had no cooling while on the trailer.
Crazy thing is that's exactly what my job is right now as a Contractor building bikes at multiple Walmarts! Up to about 25 to 35 a day and it's the most lucrative thing I've ever done and I love it!
Sean, I love all your videos but I really like this style video. It’s cool watching your antics trying to beat Craig. Please keep these coming. God bless you all.
I had one of these as a teen. It was the “80 cc” (66 stamped on the side) and it lasted me years. I rode that thing everywhere and wide open throttle the entire time. Mine lasted for what seemed like an eternity. I ended up trading it for a pit bike and the guys I traded to rode it for years after that. If you mix the gas and oil properly and do regular maintenance, they last forever. The fact they sat on a trailer revving with no air flow on the cylinders, which have fins specifically designed for airflow, is what caused them to fail. Still cool video though. It was like a gateway to me riding motorcycles as an adult. I would recommend to anybody to build one of these. They are so cool.
Let’s gooooooo thank y’all so much. I’ve waited so long for y’all to do this and it’s pretty cool that you even went back to the early motorcycles to compare it to these
I appreciate that you're calling a motorized bike a motorcycle. I wish the electric motorized bike crowd would stop advocating that they're not motorcycles because they are motorcycles too
Wow, coincidences... I also worked building Walmart bicycles in the late 80's. EVERY bicycle out of the box had loose spokes, NO shifter/derailleur or brake tuning, so they had a 60+% return rate up to that time. After 1 yr, the return rate was just over 4%. The manager was still only worried about units/day assembled because his bonus was based on sales alone at that time (Christmas WalMart bike sales are insane and he wouldn't authorize overtime). At that time, they did not penalize for losses due quality issues which they wrote all the returns up as QA issues.
"If I know Sean he is working in the middle of the floor surrounded by cardboard and bubble wrap" Cuts to Sean sitting on the shop floor surrounded by cardboard and bubble wrap 😅
You’d be surprised, I bought a little 80cc 2 stroke china choo choo engine for 150$ and ran it 40/1 and got probably about 1500 miles out of it before the piston ring snapped and seized the motor. I had it on a 700c road bike frame so it had pretty good top speed. About 38 miles an hour. I ran it about 10 hours a day maybe 100 miles a day. Did Uber eat deliveries on it. It was basically a pk80 clone 👍🏻
That actually could have just been an assembly issue, it is surprisingly common for these motors to come with the Pistons on backwards causing the rings to come out and freak up the cylinder
The most critical part of those engines is the break in period. I do three heat cycles without driving, retourqe head bolts, ride slow, ride medium, then giver nuts. They are actually pretty reliable.
I learned today that most bicycle enthusiasts have an easier time understanding basic engine theory that RUclips motorcycle personalities. Also, these things don't really wake up till broken in, and the carbs are usually way too rich, and limit the power
@@Foxrider52 personally I despise when people don't share good info. Like lots of people have zero experience and look to these "influencers" for knowledge and wisdom. Once I get a half assed computer I'll be making some content with intention of saving others wasted time and energy
I saw a video where somebody took a Navi apart and it was actually a scooter chassis underneath. I'd rather have an actual scooter than one they tried to make look like a motorcycle and took away half the storage space in the process.
I've built 16 of these and used every combination possible and I've rode 1 for 4 years everyday and sold it for what I paid for it. I know it hade to have over 10000 miles on it. And seen the guy I sold it to 2 years later and he still was riding it.
10:53 It's possible that the piston shoots straight through the head, and then straight through the gas tank..and then you look like Ghost Rider/Christine.
I bought a true 49cc Grubbee 2 stroke kit and the only big problems were the stock intake tube, which leaked and the stock chain, which stretched and had no tensioner. Once I replaced the stock intake with a cast tube, replaced the stock chain with a 410 and installed a spring loaded tensioner, the bike ran great. There's no race for the crank bearings, so Grubbee recommended running the engine at no more than 15 mph for 5-600 miles so the crank bearings would fit themselves into the crankshaft! I still run it rich at 24:1 with primo 2 stroke oil and NO problems after 15 years and over 1000 miles!-John in Texas
There's one motorized bicycle kit that is more expensive, or pretty similarly priced. It's called the Phantom 85. It's a true 85cc (or how china measures it a 110cc) and it's the most powerful stock 2 stroke engine on the market. There are some crazy predator 212cc four stroke kits available but those aren't really popular because it's just excessive. If you guys are interested in learning more look up the RUclips channel LA Hover. Real good content on motorbikes 👍
@@Bull3tBikes 2 things: #1 the Phantom 85 is the fastest 2 stroke you can buy, idk what else you want to hear, that's just factual. The bearing issue has been fixed in the new version, too, so it's reliable power. 45 is plenty on a bicycle, and if you take issue go buy a motorcycle. #2 you're being a prick, man. I'm just trying to be helpful and I'm being unbiased. Please just chill out.
@@DetroitMicroSound quite possibly but the motors are cheap enough that it's worth a try in my opinion. My bike handles full throttle for an extended period of time fairly well. I rode it all over Houston and the only problem I had was with the brakes on the cheap shitty walmart bike the motor is on.
I love these things. Me and my dad built one when I was in middle school and I rode it up until sophomore year in high school. It was awesome and introduced me into motorcycles
I recognize the red radio they were sold at Radio Shack in the early 60's...I'm 68 n my friend Dave had that radio on his cruiser bike...we were maybe 10 or 11...
Nasty, these guys didn't really do all that well with their presentation for truth and accuracy, entertainment HELL YES though. First of all they didn't center the rear sprocket, the reason the chain came off, you could see it wasn't aligned up to the axle in either plain. Next the cheap one with the bigger carb they didn't adjust the needle. Sorry both were running extremely LEAN. Will burn holes in pistons doing this, and they present themselves as motorcycle mechanics and I could tell from the presentation and their comments just how lean they were running. Next they were running a 40:1 fuel/oil mix, guess reading comprehension is not their strong point either as if you read the BOOK it clearly states 24:1 for the first 500km then you can run 32:1 at a minimum. Then worst of all was that WFO with them strapped down, sorry any AIR COOLED engine will blow quickly with no air flow. Now also would you run a new engine WFO without a load on it, now remember there is no governor to limit the engine speed. Try and put a brick on the throttle of your car after draining the radiator and see how long it runs. My grandkids and parents have run the piss out of one that I built with a sidecar and so far it hasn't went BOOM. If you have a mechanical grasp and can read they are fine, wouldn't go across the country on one, the bike would likely make it but I doubt the rider would.
As a avid motorized bicycle builder and enthusiast; Let me say these are a great start but there are way better components you can get if you know where to look. Great video btw!
THAT RADIO! I bought the same to ride my bicycle to work back in 85 when I was 15. Came from Tandy (Australia), which sold Radio Shack stuff. I remember I drilled a hole in the back, connected my Walkman, and couldn't hear a thing unless I was stopped.
Speaking from experience BBR isn't great. Those F-zero kits are not what they're cracked up to be. Spend a lot on a kit that you have to rub all kinds of money on to get it to be decent. It's a start but definitely not a complete ready to go setup.
I made a similar bike to Sean's except mine was a beach cruiser with a gas tank that rattles while your on the road. Fell in love with motorcycles because of it, but boy oh boy did it feel good to actually own a much more modern motorcycle instead of one of these. And additionally way to much upkeep for a kid who has no idea how motors work, still have it in the garage too! lol
I promise cut mufflers off leave just the straight pipe they will be pretty quick last one I had built did 45 flat land and didn't need to pedal and it would wheelie
I've built 47 of these, the 2 stroke variety. I build them on a Handy Lift to save my back LOL. Selling them on the local Craigslist is easy but you get a few weirdos coming to your house. I also sell some parts that I make for them on EBay including a tool for centering the rear sprocket easily. Fun to ride and build! I've owned 30 real motorcycles from Harleys to a Tohatsu Runpet which did help knowing some stuff to help build these bikes. GREAT video guys keep it up!
I can't speak for the first two bike motors you guys had but I have one of these cheap $100 motor kits on an old 10 speed that I have logged at least 3000 miles on using a digital odometer and the thing just keeps on going strong.
I have one of these things and they're a blast to ride. I've gone 64kph on a bike that's probably as old as Craig's and they hold up very well despite the stress they go through from daily use. They're also incredibly efficient and they're great to go places when you're not old enough to drive lmao. Makes heads turn every time I fly down an empty road.
i love motorized bikes! huge bummer yall used stock parts though. word of advice would be to use a self tuning carb, 32 tooth sprocket and a straight pipe exhaust with an expansion chamber. youll get an extra 12 or so mph out of it. best of luck boys.
Immediately liked as soon as I heard the little history lesson on motorcycles. When I was little kid my dad helped me build a motorized bike and I remember bombing around the neighborhood with it all the time. One day I got stopped by a old man who was waving over for my attention to ask about the bike. He said he hadn't seen something like that since he was a kid and was quite surprised when I told him that it was fairly new and my dad helped me build it. Very friendly man. I guess whatever he saw as a kid was very similar to those pictures you showed at the beginning of early motorcycles.
the cheap china ones last if you take care of them. i rode one around before i got my lisence for like a year. ride the thing everywhere and it was fun. they do vibrate quite a bit and can be tricky to maintain. you can get the whole kit for $85 on ebay and they are a ton of fun. definitely build one!
I got an 80$ kit of ebay i run it on like a 20-1 to 32-1 ratio maybe leaner, maybe richer around there, and rev and beat the piss out of my cheap bike and it is the most reliable thing I own, winter is starting and my thrust exhaust vibrated off so now no exhaust till I get new bolts, still starts and rips just gotta run em rish on oil and they last lol
Craig: does everything right and wants do actually make it safe Shawn/sean :let’s slap this bike together and ride with middle school and Walmart knowledge
These engines are actually decent. I've 3 years and over 40 mph out of my 80cc. I upgraded the ignition coil, plug, carburetor, ported the head myself, added a finned head, and a blast pipe.
I’ve been “on the fence” about trying one of these for a couple years now. After watching this video and reading through the comments, I’ve decided to order one and try it out. If nothing else, it’ll be a fun and relatively affordable experiment. Plus it’ll be fun to tinker with and upgrade.
I like how Sean's cockiness immediately turns into what looks like a little boy being scolded by his father once he starts getting grilled about the bike only being half put together lol
Would of been nice to see you guys get them tuned in right because they can get 45mph with some simple mods I say that cause mine already hits 40mph with just a expansion chamber and a 36 tooth sprocket and only costed me $160
They will gain more power as the engine's break in try again after a tank of gas or two then see if it makes any difference would be very interesting good stuff was a pleasure to watch.
The quality of those 2-stroke engines can vary depending on the source. While they may not be top-of-the-line, they can be quite dependable if installed and maintained correctly. Take my Schwinn OCC Stringray chopper, for example, which is powered by a Zeda 80 engine with customized porting. It reliably gets me where I need to go. However, keep in mind that you'll need to invest some effort to make these engines run smoothly. And when it comes to purchasing the kits, it's best to steer clear of Amazon since they tend to be overpriced.
Half of the motors the piston is installed backwards and the rings clip the port. Grind the key way down to retard the timing this will give you double the rpms.
Congrats on the award guys, very well deserved. I’ve been a subscriber almost since the beginning and the show just goes from strength to strength. Keep up the good work and be good to each other. From a UK biker……
Thank you! I've been wanting to build one of these for a while and this is gonna give me the motivation. Love ebikes and have worked renting em out the past couple years in the summer, but can't really swing the price tag on a decent one for myself. These things on the other hand...
So, before I got my first motorcycle I actually had a bicycle that I threw an engine kit on. That's how it started for me. Have consistently had 2 wheels ever since.
I really appreciate the content. Ive been building these for years. Awesome to see you guys venture into it ❤ its a cheap hobby and a bit dangerous so be careful. Peace.
Idk wtf Shawn is talking about, BBR makes some insanely awesome bikes and kits. If you get their ACTUAL best bike they offer you can get the Stage 4 100cc 2 stroke kit with the F series bike (which is what Shawn has more or less) it’s literally insane lol. That thing will take you 40mph no problem and it’s a riot to ride. BBR also makes a kit for 212cc predator engines so you can get insane power and speed out of your bike.
I love the variety of your videos and that you genuinely embrace all forms of 2 wheeled riding. When I first saw these kits I immediately wanted to recreate an antique Harley.
I’ve made two and it was like five years ago. I stumbled onto pics of a motorized bike and I’m right back in 😂 it’s just good fun. I used mine to get to work.
I've been waiting for this video for years. I've been building these for about 7 years and have built every motorized bike you could think of. Love these things, keep up the great work! Edit: I've routinely gotten 1000+ miles out of the 39cc 2 stroke motorized bike kits. These things won't die unless you run them at wot woth no cooling.
I made one using a reel lawn mower engine using a centrifugal clutch back in the early 60's. Learned all about gear ratios the hard way. It seemed like the best way to go was installing the motor on a platform behind the seat and using a fan belt with a centrifugal clutch.
Hey Sean, I love what you guys are doing, you really inspire me. I love bikes like crazy though i cant afford one. You guys are amazing and each time i watch your videos i feel like am riding one. My biggest dream is to own one of those bikes even if its the last thing to do on earth. Much love from Kenya
What happened to the biblical passages? I miss them so much that aspect of your channel was so awesome please do it again A.because I'm a Christian first and a giser squid second. So please bring back those biblical passengers soon my brother from another mother. Please!!!
Reminds my of the 1958 Wizzer motor bike my brother had. We got it running , I did a Easy Rider paint job on in and rode it to work at a Texaco gas station when I was a teenager.
I bought a little thing like this. I got it to help me get a basic understanding of small motors. I’m pretty happy with the overall experience and look forward to working on something bigger in the near future :)
Try braking in your little engine before you run it wide open. Tune the carb and keep everything tight. I have had mine on three different frames and still going strong. Great video, teaching what not to do.
@@rockyrocker23 definitely not an issue to run wot and being stationary 🤦♂️ they blew up because They were held at redline with no load on the engine chainsaws run wide open sitting still all day long because they have a load on the engine🤦♂️
It's so true . The first motorcycles were like this . True motorcycle guys know this stuff and you know anything with two wheels and a engine is the best thing ever haha
![Phantom 85 [V3] - No Motorized Bike Engine Will Go Faster At This Price!](/img/1.gif)
Had one of these in high school. I tuned and polished the ports, and sanded down the jug for higher compression. It was an absolute riot and weighed in at only around 50lbs, so it would do about 35mph on the straight. Wouldn't want to go much faster than that on bicycle tires and a single tiny disk brake, but I loved it!
I hit 60km/h going downhill on the way home on my normal mountain bike, solid as a rock lol
65mhp here bud. Thats when i has a stroker engine.
I got a cb750 for free from my mates dad because they didn’t want it (it had 900,000 ks on it) and I chucked it in my push bike it was fun but jeeez it was scary I think best I done on it was about 110 on a flat unpopulated road could have done more but didn’t wanna die (needed new back breaks after) there was basically more engine than bike and I never got in trouble for it
@@miataisalwaystheanswer1356 are you trying to say that you were running a 750cc engine on a bicycle?
I hit 55mph on mine I built when I was 15
That durability test was wack. These are actually pretty reliable engines. I've put quite A few miles on my last one and the piston still looked brand new before I sold it. You guys ran HALF the amount of oil you should be running for break in, that failure is clearly from heat... the piston got too hot and the high rpms broke the molten piston... Disconnect the radiator on a brand new KTM and you'll get the same result....
also there was no airflow to cool the cooling fins
I agree. They needed to run it with lots of 2 stroke oil. These are air-cooled engines so need the flow of air from moving forwards quickly. They needed to simulate the airflow with a fan. Fake channel. Fake news
@@michaelsawyer that's why I mentioned that it's like running a motorcycle without the radiator, of course it'll overheat and damage the piston. And it overheated even faster cause they used weed wacker premix. Give these things a bad name. People think they'll only last a few days, when really the last years.
Yeah the breakin is crucial . I had a 39 cc pocket bike that did 55mph drove it for years only messed up a couple rings
Running too much oil in premix actually leans out the mixture and makes MORE heat. If you want an engine to run cool then you need more fuel, and the carb needs to be properly jetted.
I built one of these kits three years ago. I got a steel cylinder jug and high compression head with a real crank case and piston kit from Bicycle Motor Works in Pennsylvania. It took me two months to build the bike and make it a "look-a-like" 1910 Indian. I've taken it to shows and won a few trophies and such... runs out at 48mph (scary for what is actually a bicycle) and is super fun to cruise around on. I have well over 500 miles on it and sill enjoy riding it all the time. - these bikes can be a he'll of a lot of fun!
I had one of these in college and rode them all around campus! It was AWESOME! I learned so much about 2 strokes and Carbs (I am a Software Engineer so no school on these) I even re balanced the crank shaft! These things are so fun!
Right on
@@BikesandBeards Next time use an appropriate oil and mixing ratio : AMSOIL SABER at 2 percent.
The engine runs cooler, the lubrication superior.
I’m a sophomore in college and I currently use my gas bike to get around campus. I love it, super cheap, lots of smiles!
hell yeah i rode my bike everyday the best for me was building the perfect bike once the mechanics were down it was all different
@@cruzkennel High miles per gallon, high smiles per gallon :)
The fact that this guy built bikes for wallmart makes a lot of sense. Now I know what the kind of person that installs a fork backwards on a wallmart bike looks like.
Truth be told, there were only a few companies that built the bikes right. The one worked for would get calls to fix the bikes other companies screwed up. We got out of the business because of Walmarts business practices. At the beginning of the season and periodically throughout, Walmart would want 300 bikes built in a weekend. Companies like mine were brought in after those bikes were built. In our province, there were these two German guys that would slam bikes together, get paid, and bolt. They would bring me in and pay piece work for maintaining stock, fixing bikes the two numbnuts built. But here is the kicker. Walmart would take back any bikes for any reason! Flat tire? Walmart would give you a refund or another bike! The flat tire bike? Before we came along, it would go in the trash! Walmart did not and does not care if the bikes work...if they sell it great! If it came back...so I just write it off as a loss and still get credit for it. They had no desire to have the bikes built decently because they did not want to pay us to do so. So instead of building a shitty bike, We left the business. I built custom bikes and sold them for a while....now I just hobby bikes.
@@POPPASHANGO " Before we came along, it would go in the trash!"
Hmm, I wonder what I'd find if I went dumpster diving behind my local WallyWorld?
@Thomas Kent It's possible, just keep an eye out in spring. They are probably having a ton of bikes built right now. Usually, at least here, they will put about 150 or more out in front of the store or have some big display...people will be snapping them up. Soon after the returns will start. Most will be bikes not built properly and some with flat tires etc...that is the time to start checking dumpsters or those big construction bins around back. 👍
@@POPPASHANGOthey lock thier dumpsters if not they are connected to the stores building.they do not will not let some one get something they couldn't make money on but spent money for any one for any reason.then ya have law enforcement.if ya got a Wal-Mart ya might have laws forbidding dumpster diving.pre wall mart eraa ,I do remember a time of no wall marts.....I think they came with the big change as I call it,and that change,some good came but also bullshit too.i know it'd all part of our evolution but in my opinion wallmart is one reason why our jobs went to China and contributed to thier slave market.and here we are now.wallmart is the go to place and thier shit made in China decreases in value.and you will have issues if not serious issues eventually.
@@ThomasKent1346 🔒padlocks🔒 is what you would find
keep in mind that the engines require the cold air running over them (from the bike's movement) to cool themselves. They likely could have lasted significantly longer on the road
I bought my kit when gas was nearing 5 buck a gallon and still running strong 8 years and 3500 miles later I'm sure there is a Rev limit and it's not wide open with no air thru the fins 😅
@@henlohenlo689 sorry I bought the 80cc and used my own bike
@@henlohenlo689 i would recommend an 80cc engine kit upgrade to a hub drive sprocket, different cylinder head for better cooling. Vibration is an issue so you have to use a thread locking compound and inspect everything frequently. Replacement parts are cheap.
@@paulzumpf3612 can i use gas bike to replace car if commute is like 15 miles each way? heavy city traffic.
also any "cool" helmets u might recoomend?
@@henlohenlo689 I ride mine to work everyday. I've seen people in Bogota Columbia riding them through the city. I doubt your traffic is heavier than that.
I’m 13 and I have the same cheap motor kit from Amazon on my bike currently, I have learned so much off of these little engines it’s insane and it’s my gateway into motorcycles in general and I have 243 miles on it so far and more to come. There awesome motors for people getting into engines or just trying to have a little fun just make sure you research a lot about them or they will break faster than they can ship from china
You dont talk like a 13y old kid🤔
@@jasmijnariel well not everyone is like you and Speak baby Language with 13.......
@@alonecomplexe ?🤨
@@alonecomplexe You sound 13
Good job 👍👍👍👍👍
The fact that Sean’s came stock with maxxis tires is insane 😂
Cst is the biggest tire company in China and owns maxxis... it is not that surprising ...
@@Treepole i am from china and i agree 100% to this comment. Believe it or not but maxxis are very common in china
Maxxis tires range widely and are almost always overpriced unless you buy top of the line
90$for the set
That looks like a bike berry fzero, theyre like 800, for the price they should come with some good tires. Hookworms are pretty well recommended from what I've seen in the motorized bike comminity
I've had mine for 14 years wit no issues! Take your time building these !
When I was 13, I built a 16" motorised bike with a 31cc 2 stroke whipper snipper motor. That was driven via a machined shaft onto the rear tyre. Would do 63km/h (Australia) and then..... went N2O injection with some creative engineering and could get up around the 80km/h mark. Looking back that was nuts.
*shAft; N2O
That's pretty impressive
i crashed mine today
@@AngusOConnor-o7l how did that go
Fix it and get back out there. I'm sure we've all crashed a bunch of times I certainly have lol.@@AngusOConnor-o7l
I have built several of those bikes. I actually went through 3 engines on one bike. But, set up properly, I did get over 2000 miles out of one of the engines. Not at full throttle, I kept my top speed to 20 mph. There is one part on those bike kits that will kill you, and that is the clamp on chain tensioner with the little plastic pulley for the motor chain. I had one get sucked into the rear wheel once, it destroyed the wheel, locked it up, and I crashed hard, onto concrete. I was riding in a bike lane, and was fortunate enough to crash to the right, onto the sidewalk, instead of to the left into traffic, where I would have been crushed by cars. NEVER use those things. You can get tensioners that mount to the motor. And that rag joint rear sprocket is junk as well. No possible way to keep it centered. You can get a clamshell rear sprocket mount that clamps to the rear wheel hub. You absolutely HAVE to have a front brake with these things. The coaster brake on a Walmart bike is completely worthless.
Sheesh glad you’re safe
E-bikes have the most configurations you can get trikes bikes moped scooters motorcycles with many different power levels and options available, e-bikes have very good reliability and you can even get a foldable solar panel to charge your bike when you're not at home, it takes me on a full charge about $0.05 worth of electricity and that can get me 35 miles on just the throttle or 70 miles if I help by pedaling, when I got my first e-bike I didn't see many around town but now there's a lot of bikes and motorized bikes around
The same thing happened to me, if you can, order the tensioner that bolts to the engine. It is a lifesaver.
Word.
Thanks for the info dude...appreciate it
As a bigger guy myself, I think I have to finally point out the obvious size/weight difference between Sean and Craig when it comes to these head to head battles.
Sean needs to be wearing a backpack full of ballast to even the scores!
Big guys unite!!
Thanks for the laughs guys!
Or the bigger guy can just lose some weight, the weight difference is more even and he's better off, win win for both 😅😝
@@Johny40Se7enyou realize some people are just naturally larger, right? And I don't mean the fatlogic definition of "naturally larger". On top of that it takes all of ten minutes to fill a backpack with ballast
@@Coastal_Cruzerif your fat 90% of the time it's because you eat too much it don't exercise enough if your are fat in 90% of cases it is your own fault
I'm over 300lbs and put one on a beach cruiser, put a couple hundred miles on mine befor it got an air leak and I couldn't figure out where and just sold it
One reason I love mopeds, is because they are still true to the original motorcycles. Simple engine with one gear, and pedal cranks... WHAT YOU WANT IS A WHIZZER.
What puch and motobecane are chop liver ?
Get a real bike
@@hutchersonhomeremodel8771 define real bike Adam,if you would please
@@Thadude701 i’m just playing, I’ve ridden plenty of mopeds. It’s what got me started off. But a good motorcycle is a whole lot more fun. I just like to push people’s button sometimes lol
@@hutchersonhomeremodel8771 I started on mopeds when I was ten ,I'm 55 and still have a motobecane in the garage with a 73 and a 95 Harley.i like bikes too and also getting a rise outta someone lol.
I own a cr250r race bike, a ninja, and various other toys. My 80cc (66cc) motorized bike kit is my favorite thing to ride. I’ve put over 2k miles on it so far. Original engine too! I’ve tried blowing it up by mixing the oil 1-1 and it smoked out the street like a diesel. These things are amazing. Best 120 dollars I’ve ever spent.
What type of ninja
Adding oil to 1-1 and making it smoke badly isn’t gonna cause an engine to blow up if anything it’s gonna ensure it doesn’t blow up🤦♂️
@@tylerseabook9423 too much oil in 2 stroke fuel can trash a motor. It seems contradictory, but the extra oil increases the “thickness” of the fuel mix and in many 2 stroke carbs will result in a leaner fuel/air mix. Running lean results in more heat, and on an air cooled motor that’s really not good. My neighbor has a small engine/ chainsaw shop, and sees this happen a lot. Typically it’s an inexperienced operator that knows just enough to be dangerous. They aren’t sure of the mix ratio and just add oil until it smokes hard and figure they’re good to go because “more oil should be better, right?”. Nope
@@MrIgottap well there’s a limit but until you hit that limit too much oil wont hurt
120 hours for $150. Crf250r $1900 for 60 hrs
The fact that the cheapest motor stayed on the frame with only one motor was a shock! You normally have to check the tightness of the mounts because of the vibration from the engine. I've had a 2 stroke fly from between my legs this way. Be safe y'all!
Fuel to oil ratio should be 16:1 for the first two tanks and 20:1 after the break-in. I've built and sold 21 of these bikes in the last two summers
False unless you're using used motor oil. With proper 2 stroke oil then 40:1 is plenty. 32:1 isn't even needed unless you have tight tolerances custom stuff. Too much oil like 16:1 will lean out the mix and overheat the motor
@@KClO3 No, 16:1 is correct for a couple of tanks and 25/1 after that. Running this type of air cooled motor wide open and being stationary is a no no.
@@mikesouth6490 no it isn't. It's simply not true. 40:1 is plenty. Many run 50:1 from the start without harm. Too much oil will trap the heat and lean the mixture of gas to air which will also cause more heating. Who was talking about running it stationary?
@@KClO3 if you read the manual and info avabile it says 16:1 break-in and 25:1 after I run mine at 32:1 with no problems for the last 3 years. Also, they had no cooling while on the trailer.
@@cdcorrigan 80cc, although in reality they are 66cc. The 50cc is super small
I’ve had mine for years you have to break them in right to last and run them rich if you do that they can last up to 10000 miles.
My mounting studds broke lol I did have in on a chopper so thats probably why but these motors are potatos fun potatos though lol
Yeah in my old day I even change the pipe and mod the small socket
@@mrcoco3562 you can mod literally everything on these motors its kinda cool
@Lane AWD the predator 212 is a much better engine. I recommend the baby 79cc built up a little bit if you must have a tiny but powerful engine.
@@boringbill yupz bro I remember it come with 50cc 60cc 90cc but 50cc it's the faster pick up 😊 I kinda miss the old day
Crazy thing is that's exactly what my job is right now as a Contractor building bikes at multiple Walmarts! Up to about 25 to 35 a day and it's the most lucrative thing I've ever done and I love it!
Sean, I love all your videos but I really like this style video. It’s cool watching your antics trying to beat Craig. Please keep these coming. God bless you all.
I love how Craig has become a main character on this channel. I do miss Caleb tho
We got to scared with Craig talking behind the camera so he got in front of it
What happened to Caleb
@@truthteller9743 we dont talk about that
@@kitano47 we want to know happend tell us if u know
@@truthteller9743 he slept with the other guys girl
I had one of these as a teen. It was the “80 cc” (66 stamped on the side) and it lasted me years. I rode that thing everywhere and wide open throttle the entire time. Mine lasted for what seemed like an eternity. I ended up trading it for a pit bike and the guys I traded to rode it for years after that. If you mix the gas and oil properly and do regular maintenance, they last forever. The fact they sat on a trailer revving with no air flow on the cylinders, which have fins specifically designed for airflow, is what caused them to fail. Still cool video though.
It was like a gateway to me riding motorcycles as an adult. I would recommend to anybody to build one of these. They are so cool.
Let’s gooooooo thank y’all so much. I’ve waited so long for y’all to do this and it’s pretty cool that you even went back to the early motorcycles to compare it to these
Same bro, I even have one myself. But I have a 4 stroke
Yeah I got one too, I’ve been waiting for a while.
Same I was hoping they'd make a video about the 98 cc motor bikes
Ya this was cool👍
I appreciate that you're calling a motorized bike a motorcycle. I wish the electric motorized bike crowd would stop advocating that they're not motorcycles because they are motorcycles too
it’s not that hard to understand if there’s a motor and a cycle action then it’s shocking a motorcycle
No, they are not. You may call them chadmobiles.
@@phoenixfox3379 they have a motor, motorcycles and these kit bikes have engines.
They are Mopeds...
Yeah, but just think: when an electric e-bike overheats, it's generally with a whole bunch of flames that can't be put out, LOL. 😂😂😂😂
Wow, coincidences... I also worked building Walmart bicycles in the late 80's. EVERY bicycle out of the box had loose spokes, NO shifter/derailleur or brake tuning, so they had a 60+% return rate up to that time. After 1 yr, the return rate was just over 4%. The manager was still only worried about units/day assembled because his bonus was based on sales alone at that time (Christmas WalMart bike sales are insane and he wouldn't authorize overtime). At that time, they did not penalize for losses due quality issues which they wrote all the returns up as QA issues.
"did you ever watch the Olympics?"
"No, I didnt"
Well now I understand why every Walmart bike I've bought was junk and fell apart....thanks Sean
Glad to help
No s&_$t, huh? Makes sense now. LMAO
"Watch out! Watch yourself! And your family I'm coming!"
Me* 😂😂😂
"If I know Sean he is working in the middle of the floor surrounded by cardboard and bubble wrap"
Cuts to Sean sitting on the shop floor surrounded by cardboard and bubble wrap 😅
You’d be surprised, I bought a little 80cc 2 stroke china choo choo engine for 150$ and ran it 40/1 and got probably about 1500 miles out of it before the piston ring snapped and seized the motor. I had it on a 700c road bike frame so it had pretty good top speed. About 38 miles an hour. I ran it about 10 hours a day maybe 100 miles a day. Did Uber eat deliveries on it. It was basically a pk80 clone 👍🏻
I would hope for it to last more than about 15 days, but I guess 10$ a day isn’t too bad
That actually could have just been an assembly issue, it is surprisingly common for these motors to come with the Pistons on backwards causing the rings to come out and freak up the cylinder
Sounds like my Seeutek PK80, it's 66cc and kicks ass with a muffler mod. Take the baffle tube out and immediately another +3 or 4 hp
You made deliveries on it?! using this like a motorcycle is what ruins it for the rest of us.
@@morrisjohnsonakamj6346 STFU, people deliver on bikes. How is this using it like a motorcycle?
How the hell does it ruin for you?
The most critical part of those engines is the break in period. I do three heat cycles without driving, retourqe head bolts, ride slow, ride medium, then giver nuts. They are actually pretty reliable.
I learned today that most bicycle enthusiasts have an easier time understanding basic engine theory that RUclips motorcycle personalities.
Also, these things don't really wake up till broken in, and the carbs are usually way too rich, and limit the power
your so knowledgeable we all bow in ur presence
@@tomtricks6838 I'm not the one with a RUclips channel about motorcycles but at same time lack basic mechanical knowledge
@@Imageloading... I think half of it is for the camera, but I may be wrong
@@Foxrider52 personally I despise when people don't share good info.
Like lots of people have zero experience and look to these "influencers" for knowledge and wisdom.
Once I get a half assed computer I'll be making some content with intention of saving others wasted time and energy
My 14 year old has almost 200 miles on one of the cheap engines this summer. Of course they will lock up with no airflow c'mon guys...
they did it for ratings lol
I did like 3000 miles during a year on one of these engines, and I ran at full throttle all the time. They are really good for the price.
He didnt use 16:1 and that pre mix gas isnt the good stuff 40:1
The Ratio is exactly why they failed btw
These run on 3.2 oz of oil to one gallon of gas from first start up and its hole life .never use 16:1
That Honda Navi is starting to look real good for $1,800 bucks 🤣🤣🤣
I saw a video where somebody took a Navi apart and it was actually a scooter chassis underneath. I'd rather have an actual scooter than one they tried to make look like a motorcycle and took away half the storage space in the process.
Also FYI after the run in period they get faster as they are running in
I believe you
I really love that oscillating feature on Craig's exhaust
19:20 obviously air cooled engines standing still, but fun to watch:)
I've built 16 of these and used every combination possible and I've rode 1 for 4 years everyday and sold it for what I paid for it. I know it hade to have over 10000 miles on it. And seen the guy I sold it to 2 years later and he still was riding it.
10:53 It's possible that the piston shoots straight through the head, and then straight through the gas tank..and then you look like Ghost Rider/Christine.
I bought a true 49cc Grubbee 2 stroke kit and the only big problems were the stock intake tube, which leaked and the stock chain, which stretched and had no tensioner. Once I replaced the stock intake with a cast tube, replaced the stock chain with a 410 and installed a spring loaded tensioner, the bike ran great. There's no race for the crank bearings, so Grubbee recommended running the engine at no more than 15 mph for 5-600 miles so the crank bearings would fit themselves into the crankshaft! I still run it rich at 24:1 with primo 2 stroke oil and NO problems after 15 years and over 1000 miles!-John in Texas
There's one motorized bicycle kit that is more expensive, or pretty similarly priced. It's called the Phantom 85. It's a true 85cc (or how china measures it a 110cc) and it's the most powerful stock 2 stroke engine on the market. There are some crazy predator 212cc four stroke kits available but those aren't really popular because it's just excessive. If you guys are interested in learning more look up the RUclips channel LA Hover. Real good content on motorbikes 👍
You’re hilarious, the phantom 85 is junk even with extra work, la hover is barely doing 45mph
@@Bull3tBikes 2 things: #1 the Phantom 85 is the fastest 2 stroke you can buy, idk what else you want to hear, that's just factual. The bearing issue has been fixed in the new version, too, so it's reliable power. 45 is plenty on a bicycle, and if you take issue go buy a motorcycle. #2 you're being a prick, man. I'm just trying to be helpful and I'm being unbiased. Please just chill out.
@@jsk2276okay wiseass you sound like the type of goon that follows LA hover, quit spreading misinformation
look up morini motor they put out 12 hp for motor bicycles
ruclips.net/video/-yuAk6BUn-E/видео.html
I've built many of the 2 strokes have Craig cut his muffler off and they rip
Higher top speeds or faster acceleration?
@@SaltyCracker402 its both, the muffler is SUPER restrictive
@@ambiguoustvreference835 time to break mine outta storage then!
Rip a hole through the piston even faster, you mean?
@@DetroitMicroSound quite possibly but the motors are cheap enough that it's worth a try in my opinion. My bike handles full throttle for an extended period of time fairly well. I rode it all over Houston and the only problem I had was with the brakes on the cheap shitty walmart bike the motor is on.
We all have that guy going up and down the road in the middle of the night with this type of bicycle …
I miss my fellow PA dudes. You guys are a ton of fun! I may order my first bike from you just for being awesome and unapologetically Christian.
Craig hands down has one of the best jobs. He looks like he has way too much fun doing what he does lol
I love these things. Me and my dad built one when I was in middle school and I rode it up until sophomore year in high school. It was awesome and introduced me into motorcycles
I was literally just thinking of this type of bike yesterday and now you made a video on it! You guys are the bomb👌🏻👌🏻👌🏻
Bomber. Allahu akbar
I recognize the red radio they were sold at Radio Shack in the early 60's...I'm 68 n my friend Dave had that radio on his cruiser bike...we were maybe 10 or 11...
Nasty, these guys didn't really do all that well with their presentation for truth and accuracy, entertainment HELL YES though. First of all they didn't center the rear sprocket, the reason the chain came off, you could see it wasn't aligned up to the axle in either plain. Next the cheap one with the bigger carb they didn't adjust the needle. Sorry both were running extremely LEAN. Will burn holes in pistons doing this, and they present themselves as motorcycle mechanics and I could tell from the presentation and their comments just how lean they were running. Next they were running a 40:1 fuel/oil mix, guess reading comprehension is not their strong point either as if you read the BOOK it clearly states 24:1 for the first 500km then you can run 32:1 at a minimum. Then worst of all was that WFO with them strapped down, sorry any AIR COOLED engine will blow quickly with no air flow. Now also would you run a new engine WFO without a load on it, now remember there is no governor to limit the engine speed. Try and put a brick on the throttle of your car after draining the radiator and see how long it runs. My grandkids and parents have run the piss out of one that I built with a sidecar and so far it hasn't went BOOM. If you have a mechanical grasp and can read they are fine, wouldn't go across the country on one, the bike would likely make it but I doubt the rider would.
@@alfiejones4253
: kaboom?
: Yes Jamal, kaboom.
Allahu akbar
As a avid motorized bicycle builder and enthusiast; Let me say these are a great start but there are way better components you can get if you know where to look. Great video btw!
Where should people look?
Yeah. I had one of those cheap Chinese kits and am considering a better one.
Show me your ways, I build these all the time
Where to look? College kid thinking about getting into bikes
THAT RADIO! I bought the same to ride my bicycle to work back in 85 when I was 15. Came from Tandy (Australia), which sold Radio Shack stuff. I remember I drilled a hole in the back, connected my Walkman, and couldn't hear a thing unless I was stopped.
I love how Shawn got a 2 stroke engine instead of 4 stroke he got scammed 🤣🤣 love the vids man keep it coming
He should've called the company. BBR is one of the best names in the motorized bike business, this is uncommon😂
@@joshuawilcox1322 bike berry allways does this
@@catsbyondrepair not from what I've heard but then again I haven't bought from them personally
@@joshuawilcox1322 I had to wait 6 months for a set of mag wheels never ordering from them again
Speaking from experience BBR isn't great. Those F-zero kits are not what they're cracked up to be. Spend a lot on a kit that you have to rub all kinds of money on to get it to be decent. It's a start but definitely not a complete ready to go setup.
I made a similar bike to Sean's except mine was a beach cruiser with a gas tank that rattles while your on the road. Fell in love with motorcycles because of it, but boy oh boy did it feel good to actually own a much more modern motorcycle instead of one of these. And additionally way to much upkeep for a kid who has no idea how motors work, still have it in the garage too! lol
Too funny I worked for a company putting together bikes too lmao got to love the spokes!!
I promise cut mufflers off leave just the straight pipe they will be pretty quick last one I had built did 45 flat land and didn't need to pedal and it would wheelie
I've built 47 of these, the 2 stroke variety. I build them on a Handy Lift to save my back LOL. Selling them on the local Craigslist is easy but you get a few weirdos coming to your house. I also sell some parts that I make for them on EBay including a tool for centering the rear sprocket easily. Fun to ride and build! I've owned 30 real motorcycles from Harleys to a Tohatsu Runpet which did help knowing some stuff to help build these bikes. GREAT video guys keep it up!
Wat city? I'm interested
Me too
I can't speak for the first two bike motors you guys had but I have one of these cheap $100 motor kits on an old 10 speed that I have logged at least 3000 miles on using a digital odometer and the thing just keeps on going strong.
I have one of these things and they're a blast to ride. I've gone 64kph on a bike that's probably as old as Craig's and they hold up very well despite the stress they go through from daily use. They're also incredibly efficient and they're great to go places when you're not old enough to drive lmao. Makes heads turn every time I fly down an empty road.
i love motorized bikes! huge bummer yall used stock parts though. word of advice would be to use a self tuning carb, 32 tooth sprocket and a straight pipe exhaust with an expansion chamber. youll get an extra 12 or so mph out of it. best of luck boys.
That seems like the best advice for quick HP. Did you do a big bore kit too?
Where can I get such a carb?
Immediately liked as soon as I heard the little history lesson on motorcycles. When I was little kid my dad helped me build a motorized bike and I remember bombing around the neighborhood with it all the time. One day I got stopped by a old man who was waving over for my attention to ask about the bike. He said he hadn't seen something like that since he was a kid and was quite surprised when I told him that it was fairly new and my dad helped me build it. Very friendly man. I guess whatever he saw as a kid was very similar to those pictures you showed at the beginning of early motorcycles.
Back in the day they used to sell a motor called the Wacky Whizzer, maybe that's what he remembers.
I love that you guys did this. I got into motorcycles because of motorized bike kits before I had my license. Awesome vid as usual!!
It’s the gateway bike
These is a great affordable way to introduce kids to motorcycles and their basic mechanics.
that old mtb bike frame is such a beauty ❤
These guys are a riot
the cheap china ones last if you take care of them. i rode one around before i got my lisence for like a year. ride the thing everywhere and it was fun. they do vibrate quite a bit and can be tricky to maintain. you can get the whole kit for $85 on ebay and they are a ton of fun. definitely build one!
I got an 80$ kit of ebay i run it on like a 20-1 to 32-1 ratio maybe leaner, maybe richer around there, and rev and beat the piss out of my cheap bike and it is the most reliable thing I own, winter is starting and my thrust exhaust vibrated off so now no exhaust till I get new bolts, still starts and rips just gotta run em rish on oil and they last lol
Craig: does everything right and wants do actually make it safe
Shawn/sean :let’s slap this bike together and ride with middle school and Walmart knowledge
" fuel filter, a HORN! BOOOONK!" cracked me up haha
These engines are actually decent. I've 3 years and over 40 mph out of my 80cc. I upgraded the ignition coil, plug, carburetor, ported the head myself, added a finned head, and a blast pipe.
One does not "Port a head" you might be able to port match your cylinder intake & exhaust ports. 🤔😫I'd like to see what you did to your head🤕👋😆🤣
I’ve been “on the fence” about trying one of these for a couple years now. After watching this video and reading through the comments, I’ve decided to order one and try it out. If nothing else, it’ll be a fun and relatively affordable experiment. Plus it’ll be fun to tinker with and upgrade.
I LOVE the color of Sean's bike! I generally don't like greens, but that deep blue-green is beautiful! That bike at the end is gorgeous!
The tent got a chuckle and a like on the video from me 😂
I wished my high school had a small engines class, that's epic. Great video as always!!! 🔥💪
dont underestimate these little engines
my buddy has his tuned up to 14 hp and it does a solid 87 mph.
he passed me on my 250
??? Proof ???
How?
I like how Sean's cockiness immediately turns into what looks like a little boy being scolded by his father once he starts getting grilled about the bike only being half put together lol
Would of been nice to see you guys get them tuned in right because they can get 45mph with some simple mods
I say that cause mine already hits 40mph with just a expansion chamber and a 36 tooth sprocket and only costed me $160
They will gain more power as the engine's break in try again after a tank of gas or two then see if it makes any difference would be very interesting good stuff was a pleasure to watch.
Good point, but too late now lol
@@gabrielulibarri9950 Haha yeah when I seen the holes in the pistons game over.
The quality of those 2-stroke engines can vary depending on the source. While they may not be top-of-the-line, they can be quite dependable if installed and maintained correctly. Take my Schwinn OCC Stringray chopper, for example, which is powered by a Zeda 80 engine with customized porting. It reliably gets me where I need to go. However, keep in mind that you'll need to invest some effort to make these engines run smoothly. And when it comes to purchasing the kits, it's best to steer clear of Amazon since they tend to be overpriced.
Half of the motors the piston is installed backwards and the rings clip the port. Grind the key way down to retard the timing this will give you double the rpms.
"This is the most uncomfortable bicycle I've ever ridden"
-Harley haters in the 1900's
-Sean in present year
Love when he looks at his imaginary watch after falling asleep
Congrats on the award guys, very well deserved. I’ve been a subscriber almost since the beginning and the show just goes from strength to strength. Keep up the good work and be good to each other. From a UK biker……
Thank you! I've been wanting to build one of these for a while and this is gonna give me the motivation. Love ebikes and have worked renting em out the past couple years in the summer, but can't really swing the price tag on a decent one for myself. These things on the other hand...
So, before I got my first motorcycle I actually had a bicycle that I threw an engine kit on. That's how it started for me. Have consistently had 2 wheels ever since.
I really appreciate the content. Ive been building these for years. Awesome to see you guys venture into it ❤ its a cheap hobby and a bit dangerous so be careful. Peace.
Idk wtf Shawn is talking about, BBR makes some insanely awesome bikes and kits. If you get their ACTUAL best bike they offer you can get the Stage 4 100cc 2 stroke kit with the F series bike (which is what Shawn has more or less) it’s literally insane lol. That thing will take you 40mph no problem and it’s a riot to ride. BBR also makes a kit for 212cc predator engines so you can get insane power and speed out of your bike.
nice untill the bikes frame snaps into pices. there not built to go past 25mph.
0:48 lmao the keybpard warriors on this channel are amazing i love when they talk about how little you guys know😂😅
I love the variety of your videos and that you genuinely embrace all forms of 2 wheeled riding. When I first saw these kits I immediately wanted to recreate an antique Harley.
I’ve made two and it was like five years ago. I stumbled onto pics of a motorized bike and I’m right back in 😂 it’s just good fun. I used mine to get to work.
T86e r pp pi o ft go
God bless you and your family Sean.
God isn’t real
@@tylerseabook9423 John 14:6 Jesus said "I am the way, the truth, and the life. No one comes to the Father except through Me."
@@brianbook3797 what a pile of nonsense
@@tylerseabook9423 You are anti-Christ? I hope you aren't a hypocrite and celebrate Christmas.
@@brianbook3797 oh I celebrate it for the triple time shifts at work. I don’t need to believe in fake god to enjoy holidays
10:21 Kreeg look at his rist thinking he had a watch when he doesn’t😂
I've been waiting for this video for years. I've been building these for about 7 years and have built every motorized bike you could think of. Love these things, keep up the great work!
Edit: I've routinely gotten 1000+ miles out of the 39cc 2 stroke motorized bike kits. These things won't die unless you run them at wot woth no cooling.
Any time you want to use English . It would be nice wot?
@@charlestonbrown148 Wide open throttle, pretty common term
@@billydavenport8134 to some but thanks for the info
@@charlestonbrown148 I gotchu
@@charlestonbrown148 it's common lingo amongst auto/bike enthusiasts
Congratulations on 1 mill guys. Its been a fun ride thus far. 🍻 Heres to the future boys.🇨🇦
I made one using a reel lawn mower engine using a centrifugal clutch back in the early 60's. Learned all about gear ratios the hard way.
It seemed like the best way to go was installing the motor on a platform behind the seat and using a fan belt with a centrifugal clutch.
Hey Sean, I love what you guys are doing, you really inspire me. I love bikes like crazy though i cant afford one. You guys are amazing and each time i watch your videos i feel like am riding one. My biggest dream is to own one of those bikes even if its the last thing to do on earth. Much love from Kenya
Come to the US, after a month of working even a minimum wage job you could get one
What happened to the biblical passages? I miss them so much that aspect of your channel was so awesome please do it again A.because I'm a Christian first and a giser squid second. So please bring back those biblical passengers soon my brother from another mother. Please!!!
He literally had one in this video, what are you talking about?
Reminds my of the 1958 Wizzer motor bike my brother had. We got it running , I did a Easy Rider paint job on in and rode it to work at a Texaco gas station when I was a teenager.
You’re exactly right. Everyone, repeat everyone started making motorised bicycles as a way to move into more complex designs later in their history.
I bought a little thing like this. I got it to help me get a basic understanding of small motors. I’m pretty happy with the overall experience and look forward to working on something bigger in the near future :)
Absolutely loved the old school bike at the end..now thats quality
Try braking in your little engine before you run it wide open. Tune the carb and keep everything tight. I have had mine on three different frames and still going strong. Great video, teaching what not to do.
A good question would be what happened to these frames...
One I couldn't find the right size tires,the other I dug up in my cousins yard, so its a good peddle bicycle.
@@rockyrocker23 definitely not an issue to run wot and being stationary 🤦♂️ they blew up because They were held at redline with no load on the engine chainsaws run wide open sitting still all day long because they have a load on the engine🤦♂️
Can y’all do the best bike engine kits to buy?
" Valves are for suckers " haha I love this guy 😂
I'm really considering buying one, since I can't afford a motorcycle right now lol
Do it, they are awesome
I bought that shirt during the livestream to win the pit bike. What ever happened to that giveaway?!?!🤷♂️
It's so true . The first motorcycles were like this . True motorcycle guys know this stuff and you know anything with two wheels and a engine is the best thing ever haha
I love when they make these kits look like the old vintage motorcycles
Sean: yours vibrated itself apart...
craig: your pedals fell off.
Sean: yeah that's true.
LOL.