2 Stroke vs. 4 Stroke Mini Bikes! Race + Thrash

Рет қаралды 144,301

4 жыл бұрын

Our 2 stroke Yamaha KT100 mini bike is surprisingly very evenly matched with our stage 3 Predator 212! They cost roughly the same to buy and they make similar power, but power delivery is way different! The 2 stroke doesn't take off until halfway through the power band, but when it does, you have to fight to keep the front wheel. Unsurprisingly, the 212cc 4 stroke has great torque and a strong top end (for a 4 stroke). The 2 stroke is unique and very impressive from a performance standpoint, but the terrible fuel consumption and lack of a pull starter make it inconvenient. Regardless, these are two fast mini bikes!
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Пікірлер: 468

@vernonmarsh 4 жыл бұрын

The 212 has an unfair advantage with that leopard skin seat cover.

@motorhead1884 4 жыл бұрын

Yeah leopard is like +15hp

@CarsandCameras 4 жыл бұрын

The 212 4 stroke is the answer for most people, but the unique character and afterburner-like power delivery of the 2 stroke is wicked!

@Bobbytrus12 4 жыл бұрын

CarsandCameras vids to short bros

@johnboy201028 4 жыл бұрын

Here is a thought. Could you install a tourqe converter on the 2 stroke (if its even possible i dont know much about that motor) .... my thought is that maybe it will allow it to get into the power band rpm range and stay in that rpm range longer .

@R.N.GPerformance 4 жыл бұрын

That’s pretty sweet guys. Hey check out my build I’m building a Yerf dog it’s coming along pretty sweet. I named it the Yerfinstein might bring it out that way next year for the meet up. Go on over and check it out let me know what you think.

@Seanbonenfant_ 4 жыл бұрын

😂

@theoldfartschannel3692 4 жыл бұрын

@@johnboy201028 Probably not enough torque for that much rotating mass.

@jasonbuck1776 4 жыл бұрын

I have a feeling the 2 stroke will dust that 212s ass when running and geared properly. And maybe use the fuel tank on 212 for 2 stroke, the one that fell off.

@maxwellvargo1336 2 жыл бұрын

It will, I’ve used both

@DylanKessler-rm2lx Ай бұрын

Friend of mine had a fkn go kart that had a KT100 and he weighed 145lbs and was clock at 87MPH on a flat road here in F..... those KT100s are small aircraft engines awswll 😂 they are badass and no joke at all

@speedyboi4623 4 жыл бұрын

Y’all need to still build that two speed mini bike that you talked about a while ago. Would be awesome

@Turbowagon 4 жыл бұрын

That 2 stroke bike isn't running anywhere near correctly

@partyboy16v 4 жыл бұрын

100% right it needs a proper exhaust and it sounds like it needs a bigger jet also! The first time you ride a proper 2 stroke you never want to ride a 4 stroke again Greetings from Germany

@crullergecko8772 4 жыл бұрын

They are better in many ways mostly they can run wherever you put them. My family used to own a lawn business a long time ago and they only used 2 stroke mowers because they didnt care how they were oriented.

@Ron-Swanson 4 жыл бұрын

Leaner mixture is needed

@peril787b 4 жыл бұрын

@@partyboy16v , that is a "proper" exhaust for a clutched KT100, mixture does need to be leaned out though. It's on a very safe mix by the sound of it.

@partyboy16v 4 жыл бұрын

peril787b youre right this is a proper exhaust but it is hacked up with this angle it cannot work right. I do 2 Stroke stuff since 30 years here in Germany. The exhaust would work right without the 90 degree bend in it 😉

@garypeterson9083 4 жыл бұрын

Raced Kt 100 engines on go carts in the 80's. On a Sprint sit-up chassis we did 110 mph at Daytona. Very powerful little engine. We had many different expansion Chambers and header pipe lengths to tune for different tracks. Also had different gear ratios and clutch settings. We used belt drive, much more dependable. Similar to timing belt.

@keatin1063 4 жыл бұрын

Y’all should know that a 50 2 stroke has more “power” than a 50 4 stroke

@DeadguyAi 4 жыл бұрын

They know that, they mentioned it.

@mx81mike 4 жыл бұрын

This is true. With proper tuning a100cc 2 stroke will have more hp compared to a 200cc 4 stroke. The 4 stroke will have better bottom end (more take off) while the 2 stroke will have better top end power. The more modern 4 strokes are closer in power range to a similar cc 2 stroke, but have far more torque throughout their power range while the 2 strokes still have a narrower power range with more peak power. A "power band" (variable exhaust port sizing/timing) is simply the rpm range where a 2 strokes exhaust valves open up to allow more air to flow through the engine allowing the engine to turn higher rpms. Not all 2 strokes have "power bands" (fixed exhaust port sizing in this case) they are just tuned to hit their peak at a certain rpm range. I'll stop rambling on now...lol.

@johnnyringo2670 4 жыл бұрын

Andrey Angere literally different strokes lol

@mx81mike 4 жыл бұрын

I agree. I've built so many 2 stroke racing engines I think I could do a full teardown and reassembly blindfolded at this point. I always get a kick out of people telling me their bike only has a power band in third gear or something like that. On a four wheeler I prefer a 4 stroke and a bike a 2 stroke. Was going to say I'm to old for carts but if it's got suspension I'm down to roost it. Kind of want to do a cross cart build or one of those power wheel builds that are getting popular. Could you imagine a 500cc 2 stroke power wheels build, wheelie bars would be a must.

@keatin1063 4 жыл бұрын

Hill Billy the fatty pipe is what makes a 2 stroke have a power bamd

@VasilyBuilds 4 жыл бұрын

Kt100 is cool. But a yamaha blaster 200cc is even better! you guys should try it out

@jafferm1938 3 жыл бұрын

I have an 01 blaster 200... it’s a riot

@westonball8629 3 жыл бұрын

I got an 89 I love it

@DylanKessler-rm2lx Ай бұрын

Yeah but this way they didn't have to swap the sprocket and chain to the other side.... doing this swap is the best for offroad and drag racing applications especially if looking for a two stroke mini bike!

@otm646 4 жыл бұрын

Seems like the gearing is still too long especially on the 2 stroke. It doesn't sound like it's coming on pipe, it's sounding linear. Excellent test.

@tejdz1337 4 жыл бұрын

or stiffer clutch springs like ive said before

@gallupcustomknives2293 4 жыл бұрын

Yeah the clutch is definitely not tuned for optimum performance and she is geared way too high for this small of a course.

@thegenerousdegenerate9395 4 жыл бұрын

It sounds like 2smokes are a whole different skillset? Easy learn, hard to get just right? I have 0 experience with them so...

@aidanjeanes7199 4 жыл бұрын

@@thegenerousdegenerate9395 yeah sounds about right, they are super simple but can be a pain in the A** to get running right, iv worked with a lot of them.

@tejdz1337 4 жыл бұрын

@@thegenerousdegenerate9395 the way 2 strokes work is that they rely on a resonance to make power, cylinder ports and expansion chamber (exhaust) make them resonate at a certain rpm range and the higher the rpm that resonance is the more power they make. the resonation range can also be tuned for a bigger power range for the cost of peak power, or a very narrow power range with a very high peak power. wich is why a 4 stroke centrifugal clutch is nowhere close to optimal for delivering power from a 2 stroke engine. you would need either a variator (CVT) tuned to make the rpm stay in the resonance range or a gearbox with atleast 6 gears. but ofcourse you can also make a centrifugal clutch work but you would have to choose between acceleration or top speed.

@guerrillaradio9953 4 жыл бұрын

I've had rocks in the tread of tires, sticking to drag slicks, too....but to actually get a rock INSIDE the tire takes SERIOUS talent....Well done, sirs.

@CamaroRick 4 жыл бұрын

2 strokers always have a gator-aid bottle with extra fuel!

@senic0115 4 жыл бұрын

On your 2 stroke engine the expantion chamber is trash second no reed valves put some good reed valves

@peril787b 4 жыл бұрын

The KT100 doesn't have reed valves, it's piston port. The expansion chamber is a good one for a clutched setup.

@csiguy6 4 жыл бұрын

Camera quality is outstanding guys. The footage is really clear. Keep up the great work!!!

@desmosedicir6878 4 жыл бұрын

Thank you guys for making these videos they always lift my spirits.

@kurtd8396 4 жыл бұрын

Some of those clips of the 2 stroke are great. There's a few spots where it's up in the power band and sounds sweet.

@isaacstar8784 2 жыл бұрын

This is literally the perfect video I needed for my minibike build

@kenbergren3903 4 жыл бұрын

Have fun riding and wrenching. You guys are crushing it, out on the trail. Good jam. Damn good jam : )

@trippharris1144 4 жыл бұрын

Another great video guys

@thegenerousdegenerate9395 4 жыл бұрын

Put that snazzy clutch on the 2-stroke!

@quitjoshinme 4 жыл бұрын

Thanks for the videos guys !

@noahmercy-mann4323 4 жыл бұрын

Now I'm getting excited about my project bike...a 1973 Kawi G4TRC. 100cc two stroke, five-speed, and hi/low range. I may look like a McCrary brother on it, but it should be fun on a bun!

@geoffreyjones2000 4 жыл бұрын

A well deserved happy holidays sirs

@MegaKencam 4 жыл бұрын

If anyone is still looking for a good Christmas gift for me, I'd love that Camaro in the background.

@ProdigyAutomotive 4 жыл бұрын

I gotchu. 70-74 Camaro z28 split bumper. I'll tell santa 😂

@MegaKencam 4 жыл бұрын

@@ProdigyAutomotive I've been good!

@MegaKencam 4 жыл бұрын

@@ProdigyAutomotive I must have been bad this year. No Camaro in my stocking... :-(

@ProdigyAutomotive 4 жыл бұрын

@@MegaKencam I'm sorry :(

@evannmilless5077 4 жыл бұрын

Literally goes to 6000 rpm like 4 seconds after starting them. Sounds reasonable

@RastaBTv 4 жыл бұрын

Loving the Dewalt starter Issac brother. That's a really big key 😂 Be blessed Rastafari

@johnnyringo2670 4 жыл бұрын

Yeah except it hurt to watch him set it down in the sand

@lobmin 4 жыл бұрын

10:30 I saw that too @2:23 It's crazy how literally any vehicle looks dope when you slam it!

@shawntl 4 жыл бұрын

Great video

@norbertocalderon2364 4 жыл бұрын

How do you make it run forward instead of backward I made a mortorize shopping cart and it runs backwards I'm using a predator 212 engine I need help on this I could use your help

@FloridaMan0561 4 жыл бұрын

Both of these little machines rip! Fun to ride,relatively hard to break and very easy to fix or upgrade. These bikes are big fun and are affordable for almost anyone to get ahold of,you can't go wrong with dropping a couple hundred bucks on one to get out and thrash on.

@ProdigyAutomotive 4 жыл бұрын

Put a Chevy 305 or 350 in a lawn mower

@brycenbragg5314 3 жыл бұрын

Please do it

@deannagrayston4778 3 жыл бұрын

Lol

@gregdavis7410 4 жыл бұрын

Odd question for John, what are the dimensions of the trailer? I am looking to buy a 20002 Avalanche and wanted to know a good size trailer for hauling my baja warrior and a fox 2 go kart.

@1one3_Racing 4 жыл бұрын

The crazy thing is: I took my boss' 200cc ag bike down the back of the farm yesterday to open a gate, and it was more fun than either of those looked.

@northernwisconsinfarmerton4796 4 жыл бұрын

U guys need to head here to Wisconsin for late January or February for the ice races . I'm studding tires on my mini bike this week .

@leightonchapman9581 4 жыл бұрын

Hey, are you guys going to take on of the mini jeeps from sema and build something awesome with it?

@6stat664 4 жыл бұрын

Guys I have a 1987 Honda FatCat the engine will run but is kinda worn out and very few parts are available, what should I put on it to make it do about 60 MPH?

@vhjvbhjb5280 4 жыл бұрын

A tip, when you touch the brake rotor when taking it of, after you have mounted it, use some alcohol or aceton on a papertowel and give it Quick wipe just to make sure there is no oil or whatever on there.

@miguel360kmc 3 жыл бұрын

What clutch would you run on a built out p79.. max torque is my go to but shopping around

@BunkerBlog 4 жыл бұрын

Do you guys think you could do an electric kart build? Maybe on the Dingo? I have a Dingo 286 and I've been thinking about doing an electric conversion once I get the cash.

@Dwayne7834 4 жыл бұрын

4 stroke would be my choice. Thanks for sharing

@colecampbell8721 4 жыл бұрын

Make a 2 wheel drive minibike. that would be cool love your videos! 👍

@seyed7705 4 жыл бұрын

If that 2 stroke had the correct type of expansion chamber it would be a monster

@SDLGaming 4 жыл бұрын

Missed you guys

@holdenrice9694 4 жыл бұрын

Give 'em the same gearing and then we'll see how the 2-stroke does!

@norm1233 4 жыл бұрын

Same gearing that two stroke would spank that thing

@jordonc3379 4 жыл бұрын

I love that 2 stroke so much! I guess it needs more love but damn. Different cutch? Sounds like its Not revving out too?

@theemptynest6955 4 жыл бұрын

Whoa good show!! Looked like a blast. **🤫SSSHHHHH 212cc quietest Muffler you can get test?? (Keeping neighborhood in the dark not knowing your ripping it on your 212cc Ride) We can all relate to this one

@abrammanoge 4 жыл бұрын

How do you start it with the drill without it breaking your arm

@Archermboi 4 жыл бұрын

Sound like both bikes are still geared too high for this type of riding. Awesome video

@rustyjunk1997 4 жыл бұрын

What would ur opinion be on a 460cc build on a mb165/mb200?

@astory9040 4 жыл бұрын

Loving the development of you guys' channel. Support all the way from Johnston County 😂👌🏾👌🏾

@Perry-ck1hv 4 жыл бұрын

You guys should look around see if you can get your hands on a rotary Small super powerful, 🤔

@ProdigyAutomotive 4 жыл бұрын

I'd love to see a rotary go kart, too bad they suck to tune.

@samsimpson3893 4 жыл бұрын

@@ProdigyAutomotive build break repeat have done a full build on a rotary kart

@bdhale34 4 жыл бұрын

Inefficient, much more emissions and unreliable.

@bdhale34 4 жыл бұрын

@Andrey Angere What is.. producing more pollution? breaking down far more often? or the using twice as much fuel to get the same power?

@frigglebiscuit7484 4 жыл бұрын

@@bdhale34 go plug up all the volcanoes if you are worried about how much a little rotary "pollutes"

@isaacstar8784 2 жыл бұрын

What's the gas tank on the four stroke? Any body know

@2000freefuel 4 жыл бұрын

who makes a mini bike frame that will fit that 186FA 10 horse diesel engine you bought?

@forkjob 4 жыл бұрын

I picked up the HF small tire changing station. Highly recommended..

@slamboy66 4 жыл бұрын

Love the hose clamp muffler mount.

@phrostbyte8260 4 жыл бұрын

id love to see you guys convert an old 3 wheeler into a 2 wheeled fat bike!!

@biggreddbanks5938 4 жыл бұрын

Its Just Gets Better And Better !!!

@topfuelkustomz3729 4 жыл бұрын

Bring back the drag rail we all are waiting and wanting it back

@shepss217 3 жыл бұрын

Even with the kt100 running like shit the 212 couldn’t hang top end

@slamboy66 4 жыл бұрын

When do we get a tour of the new CARSANDCAMERAS Grand Prix and race facility ?

@noahhildebrand8744 4 жыл бұрын

What clutch do you have on the 212

@_NikoTheOne 3 жыл бұрын

I love how you put street tires on them and was all like "lets.do some trails and take em in the mud"

@yeboidustin8725 3 жыл бұрын

Ikr

@markchesterjustinepadul9054 4 жыл бұрын

Can GopowerSports deliver anything i want even im from philippines?

@johnclary729 4 жыл бұрын

Just an FYI when we used those in ultralights we used 50:1 premix and synthetic 2-stroke oil.

@samsvintageoutboards6847 4 жыл бұрын

Holy crap dude that thing rips!!!

@bobstone9983 4 жыл бұрын

Can we get paddles on the drag rail and take it to busco beaches strip

@jcfish847 4 жыл бұрын

What size were those new tires?

@williamneska3033 4 жыл бұрын

Where yall located? Wanna help me build mine if I pay for being that you have the tools an knowledge more then I do.. i need a new frame, figure out the brakes, add suspension an install stage 4 kit for my predator motor, change gearing an 2 piece steel sprocket (old aluminum one blew up) add lights an blinkers.. so basically rebuild the hole thing so it safe an able to use

@propstrikerc5551 4 жыл бұрын

Get a porting job done on the 2 stroke (increase in port time/area), and get a pipe to match (resonance). There will be alot more wrong in performance terms than just the ports, but it would be a neat little project to seriously tune it to self destruction 😁. There are some great tuning books out there. That 2 stroke is so held back as it is. I think Graham A Bell has a good book on it.

@propstrikerc5551 4 жыл бұрын

Your doing great by the way 👍.

@jesseg7413 4 жыл бұрын

What kind of extension was on the drill to start up the KT

@isaacitllbefine7231 4 жыл бұрын

It is some kind of one way clutch that came with the engine starter. It was given to us

@maximumrpm1868 4 жыл бұрын

Great . video I'll take a 2 stroke any day of the week

@bobwhite5440 4 жыл бұрын

do some good carb work and tuning on the 2 stroke carb. investigate if you can put a torque converter on it to help low end torque or if converter is no go lower the gearing some more (may require a jack shaft) or look into the clutch problem or replace it. fabricate (this would be a C&C first) or round-up a decent expansion chamber for it.

@shawnstrode3825 4 жыл бұрын

Though the 2 stroke was a gas hog, you could definitely tell where was from the sound. It's nice seeing the change up from carts and bikes. When do we see the truck, the new property and all the new wild and crazy stuff? Are you going to do a Christmas special? Maybe everyone that you can find drive anything running. Trying to put on or take off an ornament while driving by would be fun.

@calvindirkmaat 4 жыл бұрын

Can you guys do a souped up moped build

@Bigdaddy-Donkyking 4 жыл бұрын

Love the sound to the 2 stroke 4 stroke are just good cheap and easy

@meh1099 4 жыл бұрын

when are you coming back to go power sports

@leoo0076 4 жыл бұрын

Yeah everything is similar between the two except the redline is so much higher on the 2stroke

@Deckie1969 4 жыл бұрын

I think the 2 stoke needs to be set up right and it will be a beast. Set the stall higher and the carb needs a good tuning. Check the compression too its probably very low and needs a rebuild. That is probably the reason it starts hard as well. You may never go back to a four stroke if you get that two stroke running great.

@custommadeknives 4 жыл бұрын

Weren’t ever gunna favour the 2 stroke when sponsored by go power sports 4 stroke are their main bag 😂

@bryans3287 4 жыл бұрын

I love your channel guys. I sure if that 2 cycle engine was running properly you get better gas mileage. I think the 2 cycle engine is neater looking and better sounding. everyone knows that the four strokes have way better low-end torque and they're way more readily available I like to see someone put a us820 engine on one of these, there around 7-10hp at 134cc

@REDAC7ED 4 жыл бұрын

Hey! Just a question, how come you guys dont let your engines stabilize when starting them up?

@jacobsebastien3910 4 жыл бұрын

Fuc it Send It. An if it blows get a Real Engine, a Tillotson 225r 💪😏

@crybabylocr4012 4 жыл бұрын

I wanna see guy start to do cateye pocket bike egine swap would love to see what you guys do with them

@chandlerthorne9240 4 жыл бұрын

You guys should do A tug-of-war with all your go carts

@paulteirney3587 4 жыл бұрын

Setting up the exhaust is very important on any two stroke motor and then setting up the clutch to clamps at a set rpm is what you should do but to get the best out of the KT100 you need to rebuild it about every 10 to 12 hour of running. The 4 stroke is cheaper to maintain that the 2 stroke and you can do more mods to them easier. 2 strokes the port timing is what gives you the power through the rpm range. Enjoy the time trying to get the best out of them.

@Chris-yy7qc 4 жыл бұрын

You guys took the cake with that lawn destroying ducarti? Or why r u wrenching at ikes place now? :D

@JeffSmith-pr1st 4 жыл бұрын

You guys should make Ike’s shop in nice studio shop! It’s really dark looking in that shop!

@SpeedyMercer 4 жыл бұрын

Put a SMALL nipple in the 2-stroke's fuel cap and attach a rubber hose to it as a vent hose. Old Enduro bikes used to use that setup.

@paulcooper2897 4 жыл бұрын

2 smoke is nice ... BUT ... i agree with your last comments ... for equal $$$ a 212 would be my choice too ... easy to work on .. reliable .. lots of aftermarket options

@bobbyhagler9918 4 жыл бұрын

I like them both

@crybabylocr4012 4 жыл бұрын

Fast as hell

@paceyplume3545 4 жыл бұрын

I honestly love this channel and what they do but every time they go out there's always somethin that brakes I would definitely love to see all those machines fixed the right way before they get taken out to ride

@graydog886 4 жыл бұрын

thats where itll be fine comes into play

@ryanthomas674 4 жыл бұрын

Hey you guyse should make youre own songs for the background music out of garage sounds for a video

@adventurefishing3190 4 жыл бұрын

The moment you say "the 2 stroke is better IF" then you already lost. Simplicity is best.

@Anonymous-oy6rj 4 жыл бұрын

That 2 stroke ain't runnin right. I bet if you fix it, give it one of those nice clutches that the 212 has, and fix the gearing it would totally smoke the 212

@robertjohnson3189 4 жыл бұрын

Ok thinks u good video I love your video thinks

@elizabethcallis7488 4 жыл бұрын

Are y'all gonna upload on monday and christmas??

@organicvegan164 4 жыл бұрын

Come on guys they deserve to hit the 1 mil mark

@shifthappens8475 4 жыл бұрын

Are you guys in tx?

@JosephRMStapleton 4 жыл бұрын

@everybody I have a Baja Carbon 196cc mini bike. Recently I had my decorative gas tanks studs break and it won't fit on my bike anymore. Is there a way for me to get a replacement. I looked at gopowersports but they don't have the one I need.

@ronnieyoung8549 4 жыл бұрын

Take it up to a muffler shop and ask them if they will help you. Go get a few studs from lows and drill out the old ones or cut them out , the muffler shop would probably do it for free but just get them to weld down the studs for you. Get nuts at lows to.

@ronnieyoung8549 4 жыл бұрын

LMK if u don't understand something.

@JosephRMStapleton 4 жыл бұрын

The thing is I call them suds because they are welded on bolts that are attached to the decorative tank. It's not a real tank it's a dummy one. That's just for show.

@ronnieyoung8549 4 жыл бұрын

@@JosephRMStapleton if it's welded to the frame and the studs broke ,cut the old ones off and weld new ones on.

@ronnieyoung8549 4 жыл бұрын

@@JosephRMStapleton suds?

@curtishill6490 4 жыл бұрын

Reed valves for the 2 stroke and a torque converter

@peril787b 4 жыл бұрын

It's a KT100, they're piston port, no reeds...

@janwessel9884 4 жыл бұрын

Technical note: Normally the front tires treats are heading in the opposite direction than rear tires treads. You do that because the tire has different grip levels depending on the rotation direction and while the front tire is max. stressed while breaking, the rear is while accelerating... seems unintuitive and I don’t know the specific tires but this is how it’s normally done. Still great head to head :D