How To Install And Tune A Mikuni 22 Carburetor

The Mikuni Style 22 mm carburetors is one of the best upgrades you can do to your engine. We show you how to install the 22 mm Mikuni Carburetor on a Tillotson 212 Engine. This technique works with just every engine. This video will provide helpful tips and best troubleshooting practices. Be sure to get your 22 Mikuni Kit from GoPowerSports.
22 Mikuni Carburetor Kit - bit.ly/3KyoQBU
Mega Moto 80 Minibike Kit - bit.ly/3Igs0Ze
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0:00 Overview
2:00 Tuning
2:32 Bowl
3:30 Install
5:45 Throttle Cable
7:57 Air Filter
8:20 Hoses
8:42 Benefits
9:05 Adjustments
9:22 Idle
10:25 Tips
11:23 Start Up
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Please watch: "How To Make Your Coleman CT100U Minibike Faster!"
• How To Make Your Colem...
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[@4legdfishman]

Very helpful and informative! I plan on building 2 predators for the grandson's go-cart build, and this carb along with a stage 1 kit should do the trick! Thanks for sharing!

[@GoPowerSports]

Glad it was helpful!

[@maciej2695]

Best video for VM22 adjustment! Thank you.

[@Zayaplayz]

thankyou for showing the clip you pushed in with the spring couldn’t find that info anywhere

[@bluestayslit]

I had the exact problem you described, thanks for the vid! It was the rod not properly seated in Carb! ❤

[@GoPowerSports]

Been there, done that. Glad this helped.

[@keithbrown7088]

Awsome video I just got fourth gps 22mm carb from u guys never disappointed shipping is usually the delay but its always 👍🏼 good 😃😉

[@sorrywhatgetlost]

Had problems with the Mikuni that came with my rebuilt XR200R motor, wherever the screws where it ran above 2000rpm choke worked as throttle no revs barely on throttle, so found one same as yours here said for XR200, had marks where it was set (idle 1.25t) kicked over ran a beaut straight away, been buzzing around the village on it tonight, just has a bubble in the fuel line issue cause it's modified with a CL360 tank and the fuel line is hooped down up over and down to the carb, atm has a fat clear fuel hose on, just need to let the air fizzle out 😂 it's like a soda 😂 then it runs great.....hoorah ✌🏻

[@twilli8118]

Thank you for the information I just install a Mikuni 22 on my Coleman CT200u and having trouble with the idle.

[@kylesyx8432]

I just installed a vm22 on my 212 !! 👍👍 I haven’t put any performance parts on my engine. However I’ve port/polish shaved head Recut valve s and of coarse reset valve clearance Just a header pipe homemade muffler She’ll fly around the neighborhood if you can keep the front wheel down! Lol I kept a 65 t on back and at about 5-6 grand I’m leaning over the handlebars lol ✌️

[@GoPowerSports]

Sounds great!

[@mikesbarn1858]

Good stuff. Learned some things.

[@GoPowerSports]

Glad to hear it!

[@jacobvillareal3429]

Super helpful!

[@GoPowerSports]

So glad!

[@Shredderundergod]

This vid is so professional that it got two jobs. Thanks lol

[@GoPowerSports]

Glad you liked it!

[@scoc253]

should do a follow up vid with spark plug reading after tuning the carb if its rich or lean. how to compensate and adjust/tune again if what is the result.

[@Bulletman426]

I agree!!

[@kylesyx8432]

I know this was old news. But there’s a lot to say about learning the carb yourself. The vm is so simple. You basically have a high and a low Always point your bike towards a wall on the incase you screwed the throttle up. It comes set close enough for your bike to run. So set your idle screw first, I sit my bike on a cradle to free up my rear wheel. I gas the throttle- turn screw gas throttle turn screw and after 5 min of gassing the engine, your ready to ride 👍👍💕

[@zoy13]

Excellent

[@eliastrejo5989]

Thank you!

[@GoPowerSports]

You're welcome! Thanks for checking us out.

[@paintendaveextremecollisio8057]

Awesome 👍

[@GoPowerSports]

Thanks 🤗

[@Elijahhuckaby]

Nice love it I just need help with tune

[@GoPowerSports]

Send a video of what it's doing now

[@crownedgorrilla]

Got one of these few months back... Got it tuned after it was doing the run away bike thing.. i got one ride around my property, put it in the garage the next morning it didn't want to start i got it to run didn't get far til l was pushing it back to the garage. Never got it going again.. got a cheap Chinese 35$ one and it started right up..

[@steveblottenberger1097]

Did a good job are chief explaining the details and you didn't talk too fast and I can understand you thank you keep up the good work see you guys in Texas I'm going to bust your asses in the circle track race Steve monopolis Maryland I'm going to let you guys have it LOL

[@Bulletman426]

Thank you for posting this. Big help! Where did you get the wheels for your bike. Very nice!! Is that a Motovox mbx10. If so, I have the same bike and been wanting bigger wheels and tires for it.

[@rickwhitfield7617]

Nice overview! What length throttle cable do we need for a mega motor 212 kit?

[@teshuvahemmet3036]

Thanks for the information 👍

[@michaelmilligan7291]

Have alot problems with mine I bought mine from you guys with stage 2 racer kit would appreciate if one you guys could help my I've spent alot money with u guys over the years

[@Spacecruizer203]

raceteam lol i love it

[@GoPowerSports]

We love you too

[@Spacecruizer203]

@@GoPowerSports i love how you guys kept and keep this dream alive man like that og dude said at the rascal raffle happy holidays my ducar is still running i still want the tilly stage one tho by this summer 1Oo%

[@Spacecruizer203]

@@GoPowerSports thanks fams

[@TheBiliken]

When we buy these from you, you all set the fuel mixture screw already so we don’t have to change this right?

[@TheBiliken]

Thank you! I just bought one of these from you all and plan to buy more. Is there a cover for the air filter as we go off-road or something you recommend? Thanks again for everything, long time customer.

[@GoPowerSports]

You could use the air filter cover that come with the stage 1 kits, and just zip tie. Other than that, we may use a UNI Air Filter Pod for added protection. But we currently do not sell a smaller filter cover.

[@Fatandslowbuthasthemostfun]

I used to use a plastic coffee can on my daughters Atv when it was muddy. Drill a couple holes and zip tie it to the carb

[@chilibeansr8688]

Gracias primaso

[@ronwilliams2081]

should i use the larger jets you sent with the carb???

[@brettmcguffee8119]

What’s different between this one and the 26mm?

[@spekky9012]

Mine came with 10 additional jets. Do you have any info about changing them?

[@mikesbarn1858]

After installing a new carburetor I like to spray the contact points with break cleaner and listen for an rpm change. No change is good. Change is bad.

[@jeroldlafferty54]

That brake cleaner is hard on plastic and paint. If you're checking for vacuum leaks you may want to use a silicone spray. Very good point checking for possible vacuum leaks.

[@stevenbutterfield9154]

Thanks for the video. What should I do with the carburetor when it cuts out at full throttle?

[@dixonkuntz6909]

It runs on main jet at WOT. Change main jet, probably larger. Look at spark plug to see if it's running lean or rich.

[@damnitbadger7119]

i have dual carbs on a RMZ 500. i have been having intermittent loss of power. the motor stays running but it wont run full power. i already changed the coil pack and still had the same problem. ran fine for an hour then about 30 seconds of power loss before back to full power.

[@andrew_the_coin_collector8584]

What size throttle cable are you using?

[@lance_the_avocado9492]

Will this fit on a mega moto 80 stock engine? I have one at home and ive been wanting to mess around with the engine without swapping the engine.

[@jap3rd]

my air screw fallen out. but still works ok. is it worth trying to find new screw if still works OK.

[@l.a.m7645]

I have alot of popping when I slow down in speed say 5mph does that mean it's too lean?

[@GingerAvenger605]

I NEED those wheels

[@guydurand6039]

Hey when you do all those mods do you thing the need to upgrade sparkplug ?????

[@eliastrejo5989]

What throttle cable are you using

[@marcosborne4974]

On my stock Coleman mini bike.

[@1989andruska]

So I have a SSR 125 pit bike that I have purchased a 26mm Mikuni carburetor for and it will not start what should be the first adjustment I do? It does have a spark and it does have compression it will start and run with the old carburetor .thank you

[@MRD0889]

Been fighting with my float bowls needle. Im still getting a bit more fuel because i still get a drop of fuel from that over flow line on the bottom of the bowl.

[@amsoliven91705]

Where can i get those rims?

[@shhhh265]

Do you know where I can get a idle screw for that carburetor I lost mine?

[@motorbikeTim1]

What wheels and tires are on that bike?! It looks awesome.

[@caleblopez5977]

Hey what type of fuel line do you use?

[@larryrosalez6985]

Sorry off topic but what size wheel hub are those wheels please?

[@limitlessnico_]

How come you’re adjusting the air mixture screw with the air filter out? Is that recommended?

[@DUDDreams]

Could you do a video or explain about all the different lines to do and where everything goes? What to do with the hole at the top of gas tank on predator 212cc engine, what to do with the valve cover hole, and any other thing? Would be much appreciated! Thank you!!

[@GoPowerSports]

Great suggestion!

[@yycfoamwars6557]

Aftermarket mikuni Not an official mikuni cab, correct?

[@greenbasterd9112]

Yeah it's a knockoff mikuni

[@JayPk-pm1ep]

What size studs do I need to buy for the new carb

[@xsnowdizzle6559]

What size main jet for stock 212 motor

[@carlosfrances01]

Do you have the fuel lines diagram . ?

[@bramvanhautte5112]

Any idea where to get this type pilot jet in europe? I can't seem to find these exact ones. What tags should I use to google search?

[@Theferg1]

Great video and info!! Do you Carry a carburetor that will fit a Yamaha PW 80? Thank you

[@GoPowerSports]

No we dont

[@davidmedrano5003]

Honda 389cc what carburetor can I use. I’m thinking in mikuni style. But I don’t know which one or what size. Can you help me with a suggestion

[@rickwhitfield7617]

Nice video. Unless the VM22 clone is different than a true Mikuni... counterclockwise on the AF screw leans it out vs richens it up. Easy enough to listen for, but would be surprised if the low fuel circuit design was different... given it was basically stolen and copied.

[@jamesfalvey77]

Will this work with the factory fuel tank no pump?

[@jasonmillz8628]

Can I run my thumb throttle with this? carb set up Monster moto 212 conversion

[@scottslife787]

What wheel and tire package is on the mine bike? I want it for mine

[@kipwyand7869]

Love that Tire/Wheel set up. Are those 10"?

[@GoPowerSports]

Ya, they 10s...we keep em clean though. :)

[@jonbradshaw4517]

@@GoPowerSports yoooooo 😂 this is definitely a IYKYK comment! 😂 love it

[@Johnnygoldchain]

I just installed my carb to my mini bike axis m200 from lowes. And now when I start it, it just rips and takes off. I need help! Could it be anything to do with the engine ? The throttle cable? The carb?

[@whitneyk5926]

What do I do if new carb is leaking a ton of fuel from carb and from excess fuel tube ? Do I need to adjust my carb again maybe it’s o ring issue not lined up ? Or jet pin?

[@LTDan-pk3mx]

One quick question. When i hook up the vacuum line that goes to the back of the crankcase it runs like crap. This is on a Tao Tao 120. It does run better with the vac or vent line open to atmosphere. Thanks

[@buzzedalldrink9131]

found your video by accident I know nothing about the stuff. What kind of minibike is that and where can I get one? thank you

[@Trains_n_stuff08]

I got a mikuni and the slide won’t go all the way to the bottom and the idle screw won’t work. We started it up and it ran at such a high idle and when we gave it gas it would stall out. Is there anything I’m doing wrong?

[@JAMTOAM]

I have a mukuni vm22 from a kawaski ke125 1978 2 stroke i cant find a new clone to buy cause mine fit in the bike on a rubbee boot no screws and is located by ur right foot brake pedal behind a side casing so i was gonna clean it all out and try to use same one but i need to know how to reset both screw to a point where engine start and the ajust it cause all the clones online has the bolt on side with the pipe and if i get one of thoese i cant put case over it anymore and would be exposed and in the way for brake pedal please help me thanks

[@andrew_the_coin_collector8584]

How do i make the end of my throttle cable longer? Yours is was longer than mine

[@Deonn.1]

now it dont wanna start any tips?

[@jerrystatic256]

Where does the line that normally goes to tje air filter go? I replaced one in a Tao Tao 125 dirt bike and there is no spot on the new air filter.

[@jayunitedwestand1810]

will this work on a boom vader 124cc

[@RadiatedJay]

I have two pit bikes with lifan 125cc engines and genuine Mikuni VM22's. What size pilot and main jets would you recommend at sea level?

[@BubblezWay]

That what I’m trying to figure out as well I bought some jets for my genuine mikuni carb vm22 in it won’t fit

[@lisztomaniacgirl]

pls, help me! is it okay if my VM22 only gets settled in about 5 rounds? screw head (mixture air/fuel) sticks way out of its little house/hole

[@RevHeadz95]

Is it safe to run a lacunia on a stock 212? Because I know there's no more governor once you switch to carburetors, so will the motor blow?

[@madbazRC]

I have the makuni vm22 had it running a treat 1 minute then next start up. Idles really high and under throttle just bogs & stalls any help would be appreciated

[@caylonwulf7988]

what is the bronze-gold colored clip in the needle part called

[@ajmontgomery4564]

I have the same exact carb on mine, but cant get it tuned at all, im up to a 150 main jet 5th slot on needle and still running lean, sprayed around engine n cant find any air leaks

[@spekky9012]

Is this the type of carb I could install on a gx240 honda?

[@mattl7345]

How do I remove the stock long bolts from the manifold to install the new bolts to attach the carb?

[@grumpycat3436]

Screw on 2 nuts up against each other and back the inner one out while holding the outer one still using 2 wrenches. It will eventually lock up and you can unscrew the bolt just by unscrewing the inner nut. To get the nuts off hold the inner one still and unscrew the outer nut.

[@ezntertainment3601]

Just bought one. The wholes on the adapter don’t seem to line up with the holes on my block. Any ideas of what I’m missing. Also mine didn’t come with a gasket

[@Ghost88890REAL]

It's pretty cheap on amazon for the gasket, For the holes it might be a little off but it should be correct. Unless you meant the mounting holes which idk the answer.

[@GoodFellasMiniBikez-GFMB]

jet size how to find the right jet size??

[@machdogblue]

I watched your video, it's very good. One question there is a hose connection in front of the fuel inlet on the left side of the carb (choke side), what does that connect to? Is that another fuel over flow ? I know there is an over flow on the bottom of the float bowl. Not sure where the connection in front of the fuel inlet goes or connects to. PLEASE ADVISE THANK YOU

[@peterhealey2668]

It may be a vacuum line, not used on bikes and atv's

[@painandobtain4382]

I recently bought this carb for my bike, ever since i installed it my bike has been blowing white smoke out of the exhaust. it idles and runs good but it is chugging out a lot of smoke and the smoke smells strongly of gasoline, my previous carb did not do that. does anyone know what the problems might be? could it be running too rich and if so what does that mean and how do i fix it?

[@osamabinlagging3511]

How do I get the play out of my throttle cable, it’s a brand new cable and no matter how I adjust it it’s sticky and needs the throttle cranked up at back to start to open up

[@mattola6]

Do you need gaskets in between the motor block and intake? and in between the manifold and carb???

[@piotrplewa1889]

Yes

[@heinzletzte.6385]

I have a chinese Mikuni clone that accepts mikuni main jets but keihin pwk pilot jets for some reason what number does mikuni pilot 15 and 17.5 translate to for keihin jets?

[@davidoshaughnessy1709]

I followed all your steps, got my bike running great, went to put my new air filter on and bike keeps dying. No dirt inside filter it’s bran new. Any idea why this keeps happening?

[@johnwick-ii6il]

If the motor die's as you are installing the aircleaner, you may have a bad seal on the main o=ring that seals the carb to the manifold. In many cases the seal will become off center when the carb is clocked level. If you cant remedy the failure issue, then take the carb and manifold off the motor...in one connected piece. Then look thru the manifold to see if the o-ring is showing anywhere. It should not be exposed in any areas. There isI also a small chance that a restrictive aircleaner will cause an already compromised o-ring to begin leaking. Good luck.

[@TandDcajunhideawayintheswamps]

Let me know do you have to disconnect the governor to put that is covering Cajun land Church point Louisiana

[@soni4025]

What kind of wheels and tires are those

[@3goldfinger]

Just fitted one of these, not getting any fuel to the motor, bowl filling up, cleaned it with compressed air, what could it be.

[@timmymizzy831]

I recently bought a stage 2 kit with 22 lbs springs with the racer kit. I have everything installed but the problem I'm having is that it idles super high! Can you help please

[@rcinful]

I saw your comment this morning while trying to troubleshoot the exact same build as yours doing the exact same thing. After dinking all day with it I found that my dummy ass installed the manifold upside down so one of the little cutouts on the manifold was sucking air right in. Installed it correctly and walla! Idling correctly. Give it a look.

[@Deonn.1]

i bought a new throttle cable but when it start it still goes a little nd i turned down the idle

[@eddiesheeran5791]

Do these chikuni's run the same jets as the real Mikuni's? I've heard some people say they bought a jet kit and the threads & heads of the jets aren't the same as the original jets in their carb.

[@torino428cj]

Next spring im going to buy one from your place. What month do you have sales ??

[@joserribera4888]

12.5hp kohler 14.5 brings straton?

[@bdog7262]

I have gas pouring out of the carb while it’s running… even after it’s off gas keeps coming out of the tubes. What can I do?

[@Wickedkooll]

So remove the governor from the engine?

[@david5.0fox16]

What kind of rims are those and what size are they

[@tanner3322]

Tuned my bike when idle, sounds good. But when I start to go it sputters. Any ideas what this could be?

[@jonmarquardt5305]

What size jets?