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- เผยแพร่เมื่อ 8 ก.ย. 2024
- VM22 carburetor won't idle on a Predator 212 FIX
Found out the reason why the VM22 Mikuni-equipped Azusa minibike with a Predator 212 wouldn't idle. Repaired the problem.
Azusa minibike playlist - • Ghost 212 gets a 24MM ...
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Instagram - Doubledown555Black66
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Parts used -
VM-22 carburetor - www.ebay.com/i...
VM22 jet kit - www.ebay.com/i...
Sprocket - www.ebay.com/i...
.020 ARC billet rod - www.arcracing.....
ARC billet flywheel - www.arcracing.....
ARC billet side cover - www.arcracing.....
Head gasket - Predator 212 PRO SERIES head gasket-www.ebay.com/i....
Head stud kit - www.ebay.com/i....
VM22 Mikuni carb kit - www.amazon.com....
GX 160 head - www.amazon.com....
Header pipe - www.ebay.com/i....
252 series cam and 22lb springs- www.ebay.com/i....
Subscribe for more minibike content: www.youtube.co...
Instagram - Doubledown555Black66
Don't forget to leave a comment to let me know if you enjoyed this video! :)
*********Disclaimer*********
Please do not try to re-enact or recreate anything you see in these videos.
Black66 does not take any responsibility for injuries or equipment failure created by doing so.
ALL BLACK66 CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
Amazing video most videos I find about the idle is with the stock carborator this helps alot
Thanks! I have another VM 22 video if you haven't seen that one yet. Thanks for watching! th-cam.com/video/MnQvIlFX8hM/w-d-xo.html
@@Black66 no worrys I love the content. First time I started my preditor 212 when I attached the clutch it ran away from me this thursday I have a tourq converter coming in for it.
I've been fighting with this issue for a couple of months now. Did just what you said and she's purring like a kitten. Thank you!
You have the best channel for these toys by far. I like the way you test and treat like it like a scientific laboratory, changing one thing at a time. And I like the consistent format. A natural troubleshooter.
Thank you very much!
@@Black66.. you are like the predator 212 god .. when I have issues ( I’ve built 5 go karts with varying degrees of mods ) I immediately come to your channel . You’re the best .
Good info I have been fighting with chokes and idles my whole life
I remember calling you and having all kinds of carb issues and it turns out this was the problem. I check this every single time now.
You sir are a genius. I race open small block karts, And have been fighting this issue last 2 races, Found your video, and fixed the problem in 5 minutes!
Awesome! Thanks!
Man, you’re the best I’ve been dealing with the situation of the past week with my minibike
I’ve had the same problem since I installed mine. Thank you!
Thks for ur video. Well for my VM22 I just throw it as not worth spending my 2 year to adjust, tune, troubleshooting it & trial run it on my bike and getting rough running, jerking, stalling, bad mileage and no peace of mind.
I've installed a Keihin on my bike and it run perfect and trouble free for 2 years. Just tune it in less than a minute. Been running perfectly ever since day 1 installed it. 😂😂😂😂😂😂😂
The VM 22 carbs take a few minutes to tune. I haven't had many issues with them. Check out the playlist. I run many Keihin carburetors on the channel th-cam.com/video/VbcpA0jdSIw/w-d-xo.html
I came here after a 1 gr of madnesses with my carburetor and I thought to myself what would Black 66 😂do i looked you up and you have a video about it thank you I’ll try it tomorrow morning 😅
I know a couple guys that do small engine repair work. They make a very good living at it...!
Around here everyone has a mower, weed wacker, chainsaws, tillers etc...
Amazing I have decent knowledge of these babies and I didn't think that could matter that much.o need to remember it isn't a 2 stroke thanks
Omg i think you just saved me hours of messing around. Thank you
Glad I could help!
Had this PIA problem watched your Video and bang worked perfectly..... YOU ARE THE MAN....Thank you my friend
AWESOME 😃. Thank you . I usually spray something around the connections with brake cleaner to check for air leaks .
You know it's a good thing that you have the time to be able to mess with these bikes and figure these little things out. I've been messing with these bikes for years now and that's been a common issue with me that I just figured out not too long ago. I have a 2:25 that's acting up right now. When I try to start it it backfires through the intake and the exhaust. I'm pretty sure it has to do with my valve adjustment and potentially a sheared key on the flywheel. Hopefully it's not a sheared key. But I will make sure my carb is aligned with the intake before it is put back on to alleviate one less issue or problem. Thank you
Great tech tip! I've got one of these carbs on the way. I'm looking forward to dialing it in for the big torque & throttle response gains.
Also check your intake gasket, I took mine off because I was having the issue and about half inch on the top was just gone! Replaced it and ran fine
great video that solved my issue, your a true life saver
Always check for vacume leaks and compression and then timing a bad fly wheel key can also act like bad carburetor. Valve lash can also be an issue.
Only if you are installing a Mikuni on an engine that doesn't run right prior to the Mikuni. In that case all of those should have been checked prior to installing the new carb.
Love your channel. Just bought my first bike Coleman 200ex with pred 212 and I’m learning a lot. Been having issues with it puttering out on me upgrading the carb too idk hahah keep doing you. Great channel
Thanks!
Dude thank you so much my o ring blew on the carb bc it was not lined up now she purrs like a tiger
Man . This was the video I was looking for forever
Wow this is a problem I didn’t even know I had. I’ve been having tuning issues and I’ve only adjusted my carb when I installed it.
You definitely know your stuff on these motors. Good videos! When are you going to make your own custom bike design to mass produce???
Just to add from my experience. wouldn't idle, and needed a bigger pilot jet, so if ordering, i suggest order and assortment of jets, had to increase 3 sizes to get it smooth running
Thanks! Check out my other VM22 tuning video.th-cam.com/video/MnQvIlFX8hM/w-d-xo.html
Great information as always thank you.
Dude, thank you so much, I have the same problem in my go kart
Think you for making this video because I would have never known why it did that 👍🤝🤜
i told my mate to get a 34mm flat slide for his 270cc go kart, it runs a bit rich with the smallest jet and the needle in the top groove. should he just buy smaller jets or ? would a cam help the air-fuel ratio?
How do I fix when I start my mini bike with the choke the bike revs so high the clutch engages?
Good info
Thanks! Check out the other VM22 video th-cam.com/video/MnQvIlFX8hM/w-d-xo.html&lc=Ugw4CadiyFDXpnwY0gJ4AaABAg
Love your videos. Just built a 196 on my Coleman. Chinese VM22 is really hard to start and hard to tune the idle.
Does the small hole above the mixture screw under the o-ring need to be exposed? My manifold covers it completely with the carb lined up like you just showed.
Thanks!
Thanks alot I have same carb I cleaned it out after 1 summer of use then no matter what screw kept bogging I should of known happen before gonna re aline it
Sweet!...
Thanks for helping out..
Any time!
First 4:05 am 💯🤣
LOL, the 4.05 A.M was an accident! 😂
I had one that sounded like Tweety Bird on speed when I started it. What I found was a leak between the intake manifold and the cylinder head. It sounded funny as hell though 😂
Hey man i recently bought a ct200u ex and I’m gonna do a enigine swap with 212 Pred and I saw your vid on the swap and I was a little confused could you do a more in depth guide and show all the steps cause I’m just getting into minibikes and engine swapping
GREAT VIDEO!!! Thanks for teaching us all of the little things that can make a big difference! 😘
Thanks for the video I looked at my alignment and my o ring was waiving at me hahaha big thanks
You reconfirmed what I am thinking! I spent more money and got a nibbi and have taking extra care to not junk it up. I put a stage 2 kit in a Tilly got rid of hemi, put my built predator head on her and I got twice the power I was expecting!
After a good 2 hours riding
This same thing happened!! But not before snatching the carb off went to rebuild it. Thought what if it’s the o ring ???? Scared to use locktight on alum.brass etc and the thing came loose anyway!!! Turns out it was the connection cause I can’t say was only alignment because I’m definitely replacing rubber /plastic everytime to break the connection. I simply changed heads but not a o ring ?? Wtf
Save yourself the headache!
I do have a question, I have an oem mikuni on a stock predator 212 with only a straight pipe header pipe and when I pop the throttle like you were doing in this video, when the throttle is let off quickly it tries to die like it’s flooding, I have put a 120 jet it in, stock was a 98, anything I’m missing in tuning? Fuel air is right at 2 full turns out and has I’m pretty sure 15 pilot jet
Thank you love ya man 🙌🏼😂
Would consider doing a review of a thumb throttle lever versus the standard twist grip?
I have a thumb throttle on my MM212. its ok... honestly I think it's more fatiguing than a twist
It’s funny you just put this video out because im having the same issue where i am using the nibbi carb 24mm and when I start it It only wants to run on choke but when I cut the choke off it dies unless im giving it continuous throttle. So later today I think im gonna take it off and see if that is the issue besides I just added an led bulb on the stock motor of the mb200 trailmaster. So we shall see, but literally same issue and it just started.
Their is a throttle screw you can adjust that's what my bike was doing now it's fine .. @bigballzcritic
Yes! Check out the VM22 tuning video th-cam.com/video/MnQvIlFX8hM/w-d-xo.html
I just put a Vm22 Carb on my predator 212, it’s getting Gas and everything But when I pull it just Pops a little and sounds like it Wants to start bad But just cuts right out, any tips On this Would be so very appreciated, I am trying to make my first Project build
I have the same harbor freight transmission jack and I use it on my minibike also 🤣 Thank you for the Video Help
Hey man I like your videos, you should build up a Briggs or Tecumseh sometime man I think that would be rad.
So you told me to come from the other video and I've tried to line it up right and last I checked it seemed ok but mine doesn't idle high and I can adjust the idle screw still shuts off when not choked
I have a problem on my bt200x with stage 1 kit and a size 0.38 jet so it’s good but also idles very high and not good and it will die when you take off the choke, it’s got a normal carb that I got off Amazon that fits the 196cc
We have one and it's spitting tons of fuel out of the air intake, messed with the float and to no avail it won't run. Did the steps in this video and it did run then stopped any advise?
Everytime I install a performance carb the first start is always terrifying damn bike almost took off on me. Mine Idled 2x higher than that. Please remember to lift the rear wheels off of the ground
Had a question I have a knock off vm22 carb and when turning on the idle it super high and come down two about 2k rpm with choke on but when choke goes off it idles super high. I have already checked for vacuum leaks and I have none is my carb bad? Plz help
I have one that bog's down when I hit the throttle. What could be the issue with it?! I changed the main jet to a #90 and lowered the needle one grove, any help would be greatly appreciated
Ever figure it out? Mine bogs down unless I go wide open. Runs good with choke on. Lowered needle clip to the bottom. Still does it. Idles ok with choke off.
@@backdoormailman no I didn't figure it out and just put stock carburetor back on it.
Is it possible that my carb is broken? I tried all your tips and still idles high. It worked great when first installed.
You might have to replace the o ring
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
thanks i gonna try this with mine!
So this is an air leak problem? When your bike will turn on but shut right off unless u give it gas?
Do you have a 420 with mikuni carb if yes what jets did you use please HELP YOUR THE MAN 👋👍
saved my life
any link for those engine to manifold gaskets i think mine is way thinner then the one i see u using here it almost looks metal
Great video, I have a similar situation with my Honda express. Mine turns over but won’t rev, any thoughts? Thanks in advance, I ordered a new carburetor just in case.
Great vid, but I’m still having the same issues with my axis m200, any tips on help of advice
Has a brand new vm22 carb
VERY COOL THANK YOUUUUUU !!!!!!!!!!!!
Great Tip 👍It a simple mistake
What size are those screws that connect the manifold to the motor
Great video like always! Working on getting mine running right. I think the 15.5 pilot jet I had in it makes it idle too high for the hisun 196 stock engine. Got a 12.5 pilot jet coming tomorrow to hopefully fix it. Thinking a 110 jet and 12.5 jet will be the best combo for my hisun 196. Would love to hear your thoughts on what jetting works best. I know you went from a 120 to a 110 on your hisun 196 engine.
Jetting is a little different for everyone depending on engine mods ,elevation, etc. I tend to get away with a little smaller jet because of the elevation I live at. I would do what your doing and then look at the plug to check on how its running.
@@Black66 check my TH-cam out we need the minibike community too see Paul karts is a scam
Good tip! I have a Mikuni VM22 to install yet and will pay close attention to this alignment. Question, do you find most 212's need the fuel pump with the VM22?
Thanks! No, as long as the tank is above the carb, and you can get a good gravity feed.
@@Black66 Ok, thank you! I'm using my 212 predator as a motor for a long tail duck boat motor. I am not sure how much gas it will use when I get the cam and VM22 on it, but have the ARC flywheel and rod as well, so the governor will be removed. I'd like to keep the stock tank, just to keep the footprint smaller. I will just have to try it and see. I carry a 1 gal can with me now for back up.
Have really enjoyed your videos. Even if I don't own a mini bike, your motor building content is fire! ;-)
Thank you!
@@jameswinnett4012 Thank you! Thanks for watching the videos!
@@Black66 I have a question is the choke on up or down on mikuni carb? Thank you for the inspiration in getting a bike!
Does your choke gotta be all the way open to start the bike?
What else could cause this? I'm having this same high idle problem. I start the bike on choke and it idles very high. No type of adjustments anywhere seem to do anything for me. The carb is aligned with the manifold so that isn't the issue. Any help would be great!
Good video As always
Mine idles really low once I turn the choke off I have to constantly give it throttle or it dies out
I have a question what is the best jet to put in a 212 tillison for a mikuni
It's really hard to tell because of elevation differences but I usually will start out with a 120 main. I will run the bike and then check the plug for that nice brown color.
I need help, mine engine is doing exactly the same thing your is in the video but I fixed what you said and it didn’t change anything, I’ve replaced gasket and deep cleaned the crab even replace the needle in the slide but nothing seems to work any suggestions?
Check out this video, maybe it will help th-cam.com/video/MnQvIlFX8hM/w-d-xo.html
when my predator 212 gets warmed up. it will not pop or even try to start at all unless i crack the throttle to about 1/4 throttle and blip on the gas during the pullstart. then it runs and idles fine. vm22 carb, govener removed billet flywheel 18lb valve springs. is there any adjustment to get it to warm start easier? bigger pilot valve?
If everything else is in order then I would look at changing out the pilot jet.
@@Black66 I'm thinking that too. It's on a snowmobile and running up ear 8500' elevation. I'm thinking my pilot may be too rich.
Is it a bad idea to use the Amazon makuni im just sketched bc iv herd soms good things then iv herd bad things i want to upgrade jt but its not an actual makuni
Check out the playlist for many different carbs and engine combos.
Thanks 🙏🏾
Does the float have anything to do with it cutting off??
Yes, if it runs out of fuel
I’ve got my tuning almost perfect but idk why is continues to only bog at max speed. Not sure if is the carb of if need to switch from 22lbs to 26lbs springs
Bigger main jet you need
This guy should be a mikuni carb technician
Thanks!
@@Black66 no problem
Can you send a link for that air
filter? Thanks for all your videos.
Thanks! www.ebay.com/itm/112456727228?hash=item1a2ef17abc:g:nMAAAOSw7NNT7WZj
Good video. I see that you have a fuel pump on this engine. How does the performance of the VM22 with a pulse fuel pump compare to VM22 without a fuel pump?
Thanks! They pretty much perform the same. The only reason I run a pump on this engine is because the tank is lower than the carburetor. It won't gravity feed.
@@Black66 so if it ewont gravity feed what would the symptoms be i ask this question because i too have a vm22 that wont idle without choke it dosent run high and all the gaps are lined up to spec
So i have a tilly 212 with a stage 2 kit from gopowersports, i live at 1100 feet above sea level and with a 115 my bike bogs down at 6080rpm, should i go up in jet size?
Do you know we're I can find the pilot jets for this style carb
Yes, links are in the description of the video for the jet kit.
Thank you
What size fuel line inner diameter are you using @black66
1/4 ID
🎉
People keep saying in my Facebook group I should send you my predator 212cc engine cdi high performance kit.
Bolts up in 5 minutes and the performance gains are threw the roof?
Let me know if your interested i send it to you.
hey man my pwk24 wont idle it goes way to high in choke and also a little high non choke and i try to adjust it but it just cuts off
Hey I love that gas tank and mount! Where did you get it?
Thanks! I made it out of a car overflow tank. I'll have to do a video on it.
I just spent the whole night messing with mine. It starts when I'm on the gas. I tried this trick but mine still refuses to idle with or without the choke.
Have you checked out the tuning video? th-cam.com/video/MnQvIlFX8hM/w-d-xo.html
Can you please tell me what size the o-ring is mine ripped
I zip tied my throttle cable but as I get in my yerf dog my motor will start to rev. It's super sensitive to movement.
Noob question for choke to be ON its up or down?
The lever up is on
Yeah when I put choke off it stalls but I can adjust the mixture screw and slide screw. Can I ride with choke on or not a good idea?
Mine is still doing it and I set the slide all the way down and cut the gas off on the carburetor adjustment screw and the engine still wants to take off maybe it’s the Float 😢😢
i did this and it worked but then i started it again a day later and it happened again, and the o ring is in same position
So I have a huge question what do you think the issue would be if it try’s to die after full throttle but recovers what do you think that could be ive tryed 115 all the way up to 125 but next is the 130 id just want to get your input. @black66
Mines just wants to take off and keeps bogging
Same here
I did that n it still won’t turn on n when it does it only stays on with the choke on
Did that and still high idle what now?
Why won’t my stage 2 212cc stay running after changing my idle