Yamaha 2 Stroke Fast Minibike Build + First Rip! Part 3

[@derriesymes5455]

To be honest I really didn’t think you would actually use my idea of the fuel tank in between the frame. Sick video

[@matthewf1979]

Try adjusting the needle position one at a time. I think it’s lean, so move the clip down by one. It may just be a clogged fuel port too, it’s made of 100% Chinesium after all. They’re not the cleanest out of the box.

[@BillyJoeJimBob28]

Chinesium! 😄😄 too funny!

[@danthemowermedic4444]

Yeah if you hit the throttle and it falls on its face and bogs then it needs more enrichment

[@Tampaboys]

I’m still having some bog but I’m just trying to get this video out priceless bud

[@Phil2stroke]

you should lift the needle in the carb drop the clip one notch to make it richer from 3/4 to full throttle

[@eljaibas16]

hey dude, how do you know if a 2 stroke is rich or lean, i know that a little rich is good for 2 stroke but idk

[@Jubr123]

Jairo Franco Boggin is lean and when it flitting(?) it’s rich. I don’t know the right word for it but it’s like “limiter” effect from too much gas/ too rich jetting. And if plug color is black then it’s rich, if it’s even little white it’s lean and you can melt the piston fast. Plug color should be brown/ light brown, like a coffee with little bit milk on it. 4 strokes are lean burning engines with white plug colour, but that color in 2 stroke means disaster if driven wide open..

[@botskifani22]

@@eljaibas16 its rich if it "turn off" when full throtle on neutral its the moment when the rpms start to home down from high

[@Nik-gh6gz]

You definitely don't want to rune a 2 stroke lean because that's like running a 4 without enough oil

[@blackbandit1355]

Finally I’ve been waiting

[@bryduhbikeguy]

You're doing Great with this,Vasily.71 comments,so far,and I'm going to agree with"put stock timing key in'.You're not draggin yet.You need to learn how far the engine wants to rev.I didn't know until 3 months ago myself.'Sometimes they just ache to scream',and rev further than you thought possible.Fuel octane and oil composition allow all to work the way the motor wants.I'm using my same fuel/oil mix,but this motor's a tiny but different and just wants to keep screaming more.You may find your's does too.Let it rev out a couple times and learn what It wants.

[@jasonennis407]

Excited for this build 🙌👏

[@CainSample]

Run a good ngk race plug dont use a br8es br9es or any "es" plug...run good mix (benol or blendzall) with high octane gas (40:1-50:1) n correct plug gap....those motor bog easily if somethings not right....if that dont work just put on the big bore kit 👍 than tune,check carb ,intake ,jets ect....this has soo much potential 👍

[@rustic2505]

You're pretty wrong man. These will be fine with a br8es, even some of the big builds still run them. You can upgrade to an iridium plug if that's what you're looking for. You'll want Castor 927 if we're talking top of the line. And always a 32:1 mix, but for high-revving WOT conditions 25:1 is much better for these engines. 40:1 or 50:1 will blow them up fairly easily. Needs to have a leak down test done, with an OEM carb. If you're going with a big bore, a PJ is a better choice. Plug chops to confirm jets.

[@CainSample]

@@rustic2505 guess i dont know what im talking about 😂😂

[@larrymunday7519]

You need to do plug chops to see were your jetting is. You stick a new plug in and run it wide open, then kill the motor, remove the plug and look at the insulator to check the color. You are looking for a tan color when you get it right. Sounds like the top end needs to be a little bigger on the main jet.

[@85stangster]

Inverted shift pattern is called GP shift.

[@GoodlookinMug]

Dang it Bro! Why did you edit out all of the righthand turns?? That was going to be the best part... #sketchyscooter #wtfisscraping #sparkseverywhere #hotexhaustenema

[@founddeadrepairz6433]

Put some shims under the carburetor needle. That helped me with the top speed bog i had

[@mikeglock9948]

I'm just learning how to get the bog out of 2 strokes thanks vas you are my reason for tinkering love it 😀

[@gokartbob6478]

Tuning, check the plug. The outside ring is low speed jet, inside electrode is high speed jet. In other words, if out side ring on spark plug is dark and wet, smaller low jet. If electrode is white, bigger high speed jet. Slide needle control's transition between low and high. (Start in middle till you get jets right) 👍😎🏁

[@Baldys_projects]

Great advice!

[@MrTamiyacowboy]

Like other have said , needle adjustment for Mid/top range, drop the needle adjuster down 1-2 notches to richen it up at mid and top end range

[@johndudleyarmstrong5318]

Bro, your ideas and builds are 1 of a kind, keep them coming

[@mattparker9726]

OMG please hurry! 240cc and ported???!! I'm drooling!

[@YeeThirty]

Fix that front wheel and expansion chamber and it will be sick, needs to be smaller for sure, expansion could have been tucked better for sure

[@kinotransam]

Nice build man💯 Idk if you have ever tried this, but if you're like me and want a cleaner weld on you frame joints, go back over them with the tig welder without a filler rod. This will smooth out and flatten those MIG beads. Keep up the awesome work bro!!

[@VasilyBuilds]

I heard of that trick "Fake it till you make it" haha I didn't think it could work with mig

[@brutallyhonestmf5578]

You may face problems at launch with that seat angle. Most drag minis and quads have a 0 degree angle seat with a small back rest to avoid sliding back during launch.

[@DktheWelder]

Sounds like it is running rich . Or the mid range jet needs adjustment. If you rev it in neutral and it won’t go full throttle it is rich. If at idle it gradually revs up by itself it is too lean. Or you could have a leak like you said. Anyway it looks scary fast! And you got that clutch less shifting sorted!👍

[@shaunpc2512]

Mate I honestly have to say that the engineering and fabrication skills that you are showing to everyone is amazing

[@user-vr8xv5jz7r]

Finally the most powerful mini bike

[@mixonmachines]

So cool and so scary fast on those tires 😬😬😬 great vid bro

[@colelayden7857]

Possibly the air filter? I have a 2 stroke scooter that you have to adjust the air filter to make it rev without bog at high rpm

[@adamak47miller90]

I love to see young people still making cool shit

[@bighomieJ5X]

That shift style is way better "GP shift" I switched all my street bikes to 1up 5 down👍🏾💯🙋🏿‍♂️

[@ronnierebel6388]

How you do that

[@bighomieJ5X]

@@ronnierebel6388 most bikes u just gotta loosen the 8mm bolt on the shift rod and flip it. It’s just a preference in most cases .

[@clappedf150lariat8]

You gonna blow that motor up real quick those blasters blow up so easy

[@timothyhays7889]

To be in one of those cars, go by you......and then see you come thundering up behind them in the rearview?......PRICELESS

[@hardcorefishermanofhull7438]

Great video mate keep up the great work from the UK

[@robbert4430]

4:29 'if we're street driving it or whatever' - You would get some looks on the street!!! Maybe a run through McDonald's drive thru....

[@ryt9845]

Dang brother its sick massive fan and you have come a long way with your builds keep it up vasily!

[@lizzard7473]

Big bore kit holy crap dude t hi is thing is gonna be crazy

[@jimfrostpreaches]

Carbs are match to displacement, if you are going to increase the displacement, then wait to tune/fit the carb to the increase.

[@jamesmcgee9279]

Nice first run!

[@jimfrostpreaches]

Vasily, a full racing suit includes boots. My buddy in HS wrecked with high tops on, and spent 6 weeks in the hospital and months in physical therapy learning to walk. The doctor told him if he only had shoes and high tops he would never have walked normal again. But he told him if he had been wearing leather boots, he would have walked away from the wreck. Plz be safe.

[@jackpike9337]

Dang son that thing is badass

[@SNELLERIZED]

The bike sounds WAY lean, not rich! BTW, WOT is the main jet only, not the needle. If part throttle, then the needle needs adjusted. I highly recommend you get a bigger main jet in there though.

[@mattearnshaw5526]

Maybe bogging could be the tank too have you remembered to put a small hole in the cap to prevent vacuum.never mind I watched again closely and you have no worries lol

[@deeXswanson]

check the vent tube for the tank you may have to make the vent bigger

[@staytruetv3896]

Coming along awsome 👍👍 Good work with the tig... it really isnt as easy as it looks.. but if you can perfect it.. your inline for some sick looking welds 🤟🤟

[@Bms-py6fz]

Love banshees

[@GoKartsorGoneFishin]

KZbin will never unsub me from this channel

[@GoKartsorGoneFishin]

Feels weird at first on that slick back tire doesn't it?

[@VasilyBuilds]

Thanks for the support bro! I'm used to the slicks

[@kacperburzak1610]

If it's still bogging down then it might be the chamber since you made it a bit different the gasses might not be spread evenly and that's why it bogs down

[@mattriella6776]

hey now , remember what happened the LAST time you were iin a hurry to " just get the video out" you landed yourself in the ER.....as for it bogging down , did you check to make sure the plug was the correct heat range?....how about the float level , did you check that too?....since its a slide bore carb , check the needle depth while youre at it.....dontforget to add a vent to your gas cap.

[@foreverhungry84]

it sounds like the jetting as its starving for fuel at wide open throttle

[@zangzang1268]

Yep it's lean. I would put a Mikuni on it and tune from there.

[@TARVAENE]

mikuni flatside and bigger jet and he be flying to the moon

[@johnchew9893]

Definatly lean, running it like that not good for motor at all

[@friedhippo20]

@@zangzang1268 what's a mikuni

[@addictedtoair1351]

@@friedhippo20 its a carburator

[@broo_shs]

you can add more pipe in front of exhaust so its bend like motogross exhaust 200cc still get inaf back pressure in that champer

[@clutch6654]

Try putting the stock timing key back

[@jordanpanich]

Sweet build!

[@LowMedow]

Needs The Carbs Dialed In, Shorter Gearing & an Air Shifter

[@arthursmith5409]

A front brake is a good idea outside of your controlled test setting. Way to much power in an emergency stop. Had a 1200 Ninja in Germany, hit it so hard once, thinking a curve was way up, couple of seconds I was on both brakes, sliding right thru the Apex!

[@arafatmotogarage]

It's realy awesome

[@luiz-mg8yw]

Dammmm Hi Vasily

[@hondafreak8613]

HTP is hooking everyone with KZbin channels. HTP what do i have to do to get one? Get a oem Mikuni carb. I can run my blaster @ 2 mph over logs or whatever and never bogs. Use a good Iridium NGK. And gap without harming the iridium tips on both sides of plug. Ive never fouled the Autolite extreme sport Iridium. Used for 4 years and looks new. And Amsoil HP 2 stroke oil. Says for boats now, but used to say ATV on bottle. Is a lean clean burning oil. Less smoke

[@julian9579]

make sure to check the plug color to see if its rich or lean 😁

[@Baldys_projects]

Definitely lean it needs a much bigger jet or a bad intake or crankcase leak.

[@bmxpro273]

Just a heads up I would torque that key way to Spec just cause they spin them so easy if it’s not done properly not saying you don’t know what your doing just giving my opinion on my mistakes I’ve done before

[@samsgarage1716]

Its pretty fast.great job

[@Mikefestiva]

Nice work Vasily 👍 it’s turning out really nicely. I’m thinking it’s running lean in the top end. I used a knock off carb from Amazon on my KDX 200 and I was able to get it jetted right, you should be able to get it there too. What jet size idle and main are you running, what clip is your slide needle at? How many turns out from fully seated is your idle mixture screw at? Let me know and I could probably help you get it into the ball park. Ps what are you mixing the gas at? Take care 👍

[@VasilyBuilds]

30:1 castor 927. 35mm pwk clone. Tried 45 & 55 pliot and 160-178 main jet. Ran best with 172. Haven't messed with the needle but it could be that or just too much carb angle

[@Mikefestiva]

Vasily Builds You are definitely in the jetting range, try bringing up the needle by lowering the small c clip one notch at a time. When you move the needle up it makes your main jet come on sooner, if your bike starts to lean out at about 1/4 throttle this can be the problem. Float can also be set to low and cause the bike to be lean but I would only change one thing at a time, start with the needle 👍

[@darrylnicholson1640]

I have a suggestion fit it with a front disk brake fix the bogging and give it death.

[@davidowen888]

Great work👍 Silly Sick bike the SSVasilly ! 🤣

[@fordmodela3641]

Enjoyed the video!

[@sender6994]

Just letting you know that if you go with the Vito’s kit, you will really gotta do nasty port work because they have shit port work in the cylinders when they make them

[@kierjohndichosa7406]

brooo ilike your mini bike...its super cool..

[@300zxdriver]

Cool build.

[@ianlake5863]

I have no idea cause idk much about 2 strokes but it could also be the ignition timing change

[@anermlyfat9080]

First of all it is way to lean, second of all your TIG welding is getting better even thoe you took away my last comment but if you want to improve on your TIG welding turn up the amps and use more electrode cuse you can clearly see your weld got to hot by the gray colour. Another thing that Will improve your TIG welding is moving the wolfram longer out from the gas cup, that Will make the weld better because you will not get as Many oxides and also you will see the arc better. Keep up the great work man

[@american0153]

What oil ratio do you run? I know this sounds pretty obvious, but too much oil makes the motor run lean, as the fuel is more saturated. I’ve had that problem before too, I was just running a super rich oil fuel mixture, so I would try leaning out the oil fuel mixture and that should fix the bog. If not, I would try moving up a few sizes on the main jet. Could also be improperly set float height. Hope this helps you out, and as always great videos man!

[@VasilyBuilds]

Thanks. It ended up being the needle clip set too low. I mix 32:1 the golden ratio

[@dariogapuz8101]

I like it vasily,thanks

[@BillyJoeJimBob28]

Wondering how does it handle with the small slick lookin rear tire? Also you'd get more top end speed with a larger rear tire.. right? But prob going for ballance between off the line vs top end. Looks good Vasily.

[@tyrelleneither5621]

Love your videos dude

[@vacuumpowered6119]

Nicee bro, but ehh, the exhaust is almost laying on the ground

[@edmondpecotjr.8888]

Check the spark plug gap you might have to play with the gapping

[@andybaker5787]

Keep up the good work

[@VasilyBuilds]

Thanks, will do!

[@abrahampeshko1858]

Thanks for the video

[@jacksrccars347]

What a beast 👍👍👍

[@Hokey412]

Please leakdown test that engine, you can build your own super cheap. The reed gaskets are a known leak spot i always put a small coat of yamabond on them before install. Sick build tho man! If you wanna make some real power look into the 225cc airsal cylinder and the vitos 3mil stroker crank. Thats what I run and its an animal.

[@jameslyons1978]

Me too love this build!

[@romankozhokar8244]

Use the clutch when you shift

[@localzackz6467]

Finally bro

[@imnottellinudontwannaknow3188]

nice. was he ever giving it full throttle? i can''t really tell

[@Baldys_projects]

Technically yes but way down on power because it's super lean on the main jet.

[@absolutemadlad2671]

take a non flammable aerosol can and spray it around the engine when its running where you might suspect a leak from, if there's a leak it will sputter and might die i think you can use brakleen but dont quote me

[@jsaction33]

Could have problems with the pipe resonance frequency not matching the porting on the engine. Even though the volume is the same changing the geometry of the pipe will now change its resonant frequency due to the exhaust waves not bouncing off the added bends

[@01Duke390]

How did you attach the back tire to the bearings? Did you make your own adapter or did you buy it? Im having trouble with that

[@jurriendw050]

That bogg mostly comes of to lean fuel mixture

[@jaredbudzinski8434]

What’s the left hand versus right hand turning radius 😂

[@justsendittv8567]

The lighter flywheel and adding timing can take away low end torque and maybe try revving a little higher before shifting

[@justsendittv8567]

Still a great protect though

[@brennensbuildsmoore5537]

I'm making a mini bike that does 70ish mph for under 200$, I'm close

[@carternevill]

Tell us how it goes, post a video !

[@curtisturley7]

Brrrrraaaaaattttttt. Good job.

[@Ocgt]

How much your neighbors like you?? 🤣🤣 I got this same brake setup you linked. Did you just extend the length with some tubing ?? Looks like yours is clear

[@mikahakkinen5651]

what a great bike, give it more fuel. sounds like its running little bit lean.

[@kevinAuman1]

Bruh, funny you say it reminded you of a 350 twin banshee lol IMAGINE IF YA PUT ONE THEM MOTORS ON THE DAMN THING!!! YeeYee haha

[@friedhippo20]

Use a speedometer app next time to test speeds out regardless of the accuracy

[@JP-iu4vz]

Next do a mini bike build with a banshee engine

[@hondayamahafan]

Sweet build! I love that you do all the fabricating yourself. Have you thought about reaching out to lectron for a carburetor?

[@supermotofeann]

2 strokes are very picky engines, i know a ton about them, start off with a brand new ngk plug, and hopefully that will fix the bogging

[@chadscott2499]

Put some air grab find like on a trx 250r get some air flowing through

[@brandonjuustice8957]

Please pull in that clutch when shifting id just hate to see that clutch get tosted after all that time into it 😀😀 cheers bud aswome build btw

[@markasmith9452]

The first problem maybe it's your muffler when you kicked it over the first time it look like it moved but I also like you said you have a carburetor problem

[@getoutmecar2940]

Are u gonna make a 4 stroke buggy that we voted for