First Mod Everyone Should Do After Buying A Chinese Pit/Dirt Bike To Improve Performance! 

What do you mean with raise the needle?

@@floriskamp8107 Slide needle

correction, the carb is trash, mine blew after 3 days, everyone knows they suck

My son bought a tao tao 110. I know zero about this stuff. What do you mean by larger main jet? How do you replace that? His is idling well. 1st gear fine and then it bogs down. Not sure how helpful that is but any thoughts are appreciated

Totally agree with this comment, I have two Thumpstars a TSK V5 140cc with YX-R motor new from factory, with Molkt Carb and a TSK V5 125cc this one has a Mikuni Carb and purrs like a kitten (valves had been adjusted prior to buying). The 140cc has had rough idle since new and no matter how I adjusted the air fuel screw or pilot jet sizes the problem remained, checked Valve clearences and whaddya know, they were tight! too tight, so I adjusted them to spec and all is now running perfect! It's not always the Carb people.

Take this man's advice, I did this with a jdm Honda 125 carb and forgot to replace the slide and needle and my bike almost crashed into a tree

⁠@@emergencybackup5039so buys whole new needle and slide

yeah, tiny little dings in the metal on that needle will make a huge impact on how fuel flows. Also, like dude above, if your slide gets stuck open, you’re gonna have a bad day!

I noticed a couple things and that's one of them.

Yeah, but the original carb is machined and jetting it or anything is not possible. The mikunu carb is a much better carb.

If you adjust needle travel to middle (neutral) position. Screw airfuel ratio 1 and half open these chinese carbs will run absulutely perfect.

What? Chinese are notorious for small carbs. Even Taiwanese have small carbs. Add to that the poor build quality, and you're losing a lot for a few dollars. Replace the carb with a pwk.

Those chinese carbs are not super precise so eventhough the needle adjustment should only affect mid range, if the needle is not sized properly even at full throttle on the mid range lean needle groove, the tip of the needle could still be in the way of the passage at the top of the emulsion tube, restricting some fuel to fully flow. So positioning it for rich mixture at the lowest groove should be something to try.

How can I contact you please

Biggest bud ever you’re right but those junk carbs don’t have a mixture screw. Just idle.

mike bayes you can adjust the air/fuel on these carbs

Noxus you have to drill out a brass plug that covers the screw but yes it can be done. It’s just stupid that it’s plugged off.

mike bayes yeah I bought this carburetor and the thing I hate is that they put the air/fuel ratio on the bottom

@@mike5162 they do your stupid enough not to find em

He hasn’t a clue what he’s dping

Yeah you’re not supposed to put that one on it’s just a extra

It’s not back wards cause the heat sink is supposed to be attached to the carb

I mean the first hint is he doesnt know chinese knockoffs put name brand logos on their shit all the time.

hey so do i need to change the carb or no? cause i am gettin gmy first dirt bike and i dont know if to leave it as is or if to get some better parts? , idk id be very grateful for some guidance on how to make my dirt bike better . tahnks

Yup mine bogs too. Exactly the same carb.

What if u did those things to the old carb all these carbs be the same man 😂

@@JohnWick-hx7bc 🤷🏻‍♂️I needed to overhaul my old carb anyway. Just cheaper to buy a new one man honestly

​@@JohnWick-hx7bcno

My sons 70cc Apollo had the same exact thing when I took off the carb. Didnt notice till reassembly. I was like "Wait, wtf am I missing here?" Realized it was a china problem not me.

Any idea why my pit bike gets hot quick? I’ve got a oil cooler and new carb and still gets hot pretty quick

@@connorjack3246 your heat fins could have dirt or mud between them or if 2 stroke you need to add more oil to your gas to oil mix.

@@hunterwinchester3923 4 stroke. Where are the heat fins?? I’ve took all the top end apart and the top of the piston and valves are blacked and caked in like soot stuff

@@hunterwinchester3923 I never really worked on a bike before, so I’m pretty blind to it. When I set the valves is 0.04 metric or imperial I’m confused

What do you do with the old air filter? Do you detach the line it's hanging from and tape the line to the side of the bike, or is there a way to detach the whole line?

@@andrewrussell5307 just lead the line down to the bottom of the bike with nothing attached to it.

Is there a picture for where exactly you talking about?

Do you know how to remove the governor on a kayo td 125?

@@mikep4811 there shouldn’t be one on that bike, maybe a throttle stop on the grip.

I was a motorcycle mechanic for some years. Had a jr 50 before a pedal bike. Rebuilt 50cc 2 strokes to 450 4 strokes and never paid attention to that

Which carb did you go with

@@wolfserker3179 Got the carburetor off of Amazon

Thanks. Hope you see this, with that being said would you honestly think this is a fun pit bike for someone whos used to riding things with 20x the power of the tao 125 ? Thinking about buying obe

Dude the Apollo Z40 140 cc come stock with a competition grade Nibbi carb on it. I know this because I have one. So if you or someone else changed it out , then y’all really have no clue what you’re doing or why you’re doing it... SMH

@@DylanO0505 Sorry I didn’t see your message, I hope you found what you was looking for!

@@carlosespinosa602 Shake your head? At what point did I say the pitbike I bought was an Apollo Z40? I said the engine was a YX140. Which is a common 140cc pitbike engine. If the bike came with a Nibbi carb that had no major problems, obviously I wouldn’t remove it… But it didn’t. It came with a bad Chinese VM26 copy. Hence why I bought the genuine Mikuni VM26 tuned for that specific engine from Parker Racing. Maybe try comprehending a word of what I posted instead of talking shit.

i said the same thing, he needs to sit down and get some more education in small engines.

@@Gladiusrides What would you recommend? I didn't have a small engine class in school so I'm learning this stuff via trial and error and it kinda sucks.

@@dcgregorya5434 watch the RU-vid channel Cars and Cameras. I'm nearly 16 and I watched then from about 10 to 14 every day. I stopped watching RU-vid a while but I watch them again now. They make great videos and actually show you how to do what they're doing. I recommend watching a mini bike engine swap or build video, because it involves carburetor and intake work. Good luck on your learning. I'm still learning a lot of everything lol

I was taught to use non-petroleum grease, so as to not degrade the seals.

More like it forces the engine to inhale oil contaminated regurgitated exhaust which blew by the rings... this will gum up the carb eventually. I always disconnect the puke tube and let it vent out under my bike.

Tóth Botond technically it cant be a manifold as there is no merging of gasses into a main chamber. But it is the manifold of the bike.

we are listening to a big child that knows nothing about engines

Stupid question but do u lnow what fuel i put in a 4t putbike in the uk???

My son has taken all the wiring loose on his bike and I don't know enough about it. It looks exactly like the bike this guy is working on.

​@@theaveragepotato5358 87-93 The better the gas you put in the better it will run. No diesel, no two-stroke

must have seen the fuel filter direction

did you do it ? I bought a used ssr 125 and I love it

Paul Le Brun nope not true try again

@@ExoticMoTioN my bad 😁, I don't know if the replacement carb is a real mikuni but maybe it is, it just need some adjustments 😀

Paul Le Brun Why are you looking up Chinese Bikes Johnny Motocross !!!

@@ExoticMoTioN It's bogging because you need to adjust the mixture. turn it left for relief of bogging.

The vid is more for showing off her new ear rings and facial blush color. Maybe a trans issue?

Great spelling 😂

@@matts8045 ikr lol

Ikr

Intake manifold=pipe

Well the “knock off” is a real mikuni carb but it didn’t pass Honda standards so they rebuilt it but then it still can’t go to Honda so they sell it for cheaper via third party sellers, it’s actually a great way to save $100

Hey man your one of the few people on here that seem to know what they are talking about.I have the same bike as you I love it! I had bought a "MIKUNI" carb last fall to put on it because the stock carb couldn't be taken apart easy and was giving me problems overflowing and causing gas to dump onto the engine. I'd like to get the mikuni to work but am having problems with it not going back to idle when I let off the throttle. Not sure if its the manifold (since the bolt holes dont really line up but it sounds like you got around that with the Nibb. can you send me a link to the carb and that adapter you got. Also sorry to ramble on but did you have to do any jetting afterwards? I'm basically at sealevel.

Good luck mine broke really fast

I’m actually still repairing it

I say the same thing. These off brand bikes are way easier to work on than a Honda or Yamaha.

I learned my lesson. never buy a used Chinese Anything issues will haunt you 😭 I got my Chinese quad (110cc) to run great. now I'm selling.

@@tebibyte2357 My expectations for the china bike is get it cheap ride it for a year sell it cheap buy a good bike

@@Hello-uv3nz yes but if you want a Chinese big bike try to get an Apollo 250, they have lifan engines on them(Honda).

@@tebibyte2357 Ya I have considered getting them before. But for now I'm just going to install some good filters and a new carb on the Chinese 125 then once I get comfortable enough sell it and pick up a better bike when I feel confident. With the chinese bikes it doesn't feel nearly as bad when you crash.

@@Hello-uv3nz Get an Apollo 250 and you might not have to upgrade, 70mph top speed + great reliability.

Cool those are like a 100 bucks... How is it working out lots of cool power? I just got my Communist China bike today. It's the only thing my white privilege job can afford.

@@wrighthausracing9641 the bike is still running like new, but you probably should have gave that money to black life's matter movement. Haha!

@@SineMacula hahaha!!!

We did the exact same thing, never ran worse than with the two NIbbi 26 and 24...( Would even barely turn back on) Rushed to put back the "crappy" carb and trying again to tune it better..More expensive is not always the best solution...

Maybe down size the jet?? You are the only comment that made sense.

Who cares?

Yea for 4 times the price

I swamp my Chinese bikes and still running. Don’t thrash from the start and dump oils ASAP and I have never had trouble (touch wood lol)

Are you under the impression that the same steps won't work for these bikes? Is there a secret waterproof tech Honda has? LOL. JK, but really...

@@LazarusMastiffs I have a ttr and Tao pit bike and both haven’t ran after such abuse

I find it easier to give my 140 a bit gas when cold

Have you ridden a Chinese pitbike mate

does it really matter what the real name is... People should give the guy a break..Those chinese carbs are extremely difficult near impossible to tune...

I'm with you, this just showed up in my feeds and holy crap this guy has no clue lol

Hate when that happens I got this new 22 mm carb for my 110 cc and couldn't figure out the issue lol. I was twisting the F/A mixture the wrong way. Runs perfect now

Tebibyte I can’t find my F/A mixture screw on my tao Tao 110cc can you tell me where it is?

LOL that’s so funny

What do you do with the old air filter? Do you detach the old air filter and leave the cable hanging, or do you put that cable into where the red transparent cable was (the one he disconnected in the video)

Disconnected at 12:00

He installed the spacer the opposite direction aswell. So this engine is going to overheat from lack of fuel and he will buy another one.

Lol yeah

I hope nobody followed his steps

Righto expert

I know right I got mad at him

@@Jackndan still learning, what am I missing that he did wrong?

You didn't need to adjust at all?

real bike lol i get it tho the only chinese bike i had is schooter still have it tho gues what its broken i helped but hey and i think getting real bike is better it will cost you less at the end of the day trust me for real alright here you bought chinese bike for 300$ cheap but i 1 years so many things broke and needed to be replaced uppgraded it costed you 869$ or you could buy used cheap real bike for 1000$ and ur good mybe new piston 130$ and ur up and running and you actualy have a real working bike for a little cheaper ... just dont buy chiinese bikes unleas its like brand new for a real cheap price that someone is selling it after buying it then mybeeeeeeeee

Why don’t you Boys get a real job and buy him a real Bike !!!

Layne Scott why you getting so butthurt dawg chill it was a joke

Spauzy what would u consider a good bike then ??

@@brant1437 ktm, honda, yamaha..all better than any chinese junk that you'll need to tighten bolts everytime before you ride

I agree. I get it that hes a Joe-Shmoe the BackYard mechanic from RU-vid lol ..but You would think If someone is teaching something then they would have achieved mastery of the subject.. You definitely cant hide Inexperience, It shines through.. He should of planned a little better at least, he is literally working off the asphalt. Im rooting for him though, this is all a learning experience for him. When hes older he will laugh and cringe at these videos 😆

I think you guys have mistaken this video as a tutorial.. When actually it’s just his experience,, mistakes and all.. but if you think he’s a master teacher you can go ahead and think that.. but really he’s not.. in fact since you all know so much, instead of acting all smug with your worldly motorcycle mechanic knowledge, laughing at him.. perhaps you could enlighten everyone w/ your knowledge and help the kid go in the right direction. I mean that’s if he even wants to make this a tutorial video, and not just a random video he decided to post.. or even post a video yourself, this way you can show everyone the correct way to install a carb,, while correcting al the mistakes this kid made.. or at least the ones he didn’t acknowledge and correct at the end of the video.. cause just talking shit w/ out any helpful advice doesn’t encourage anyone. And if you’re to lazy to post videos than I think you two should both grow the fuk up, and start acting like respectable people instead of immature haters.. but I’m bit here to tell anyone how to live., I’m jus giving actually helpful advice.. get it? I’m not just telling you how much you suck,, but offering advice on how to correct that shitty behavior.. otherwise I’m sure theres some grown ups like the whole Republican Party that you should go and offer your insightful opinions too.. haters Gotta stick together.. you’ll fit right in.. haha,,

Ktms are high or close tolerance

my coolster died after the first day

Everisto Lehi what’s your point

Everything is probly undertorqed and looking like this guy id only trust him more to fix my kids teddy bear

But how do u connect that hose if it has no nipple at the end