The ULTIMATE Jetting/Tuning Guide - NIBBI Racing 22mm & 24mm Carbs on 125cc Pit Bike
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- čas přidán 29. 06. 2023
- Want exact jetting specs to tune your nibbi carb? We show the best setup for your chinese pit bike carb to make it run at max performance without bogging or cutting out. This is for NIBBI racing PE22mm and PE24mm carburetors and will work on most chinese 110cc and 125cc pit bikes such as SSR, Xpro, Coolster, Taotao, apollo, and more! This is a must see video on tuning and jetting to get your bike dialed in where it runs best! Don't listen to others saying 26mm is better, they will not work. We do a sound test of each bike and carb as well. We are located in Wisconsin and our altitude may be different than where you are at, this will cause jetting to change slightly!
PE22mm FL Specs:
125cc Pit Bike
Premium 91 Octane Fuel
Main Jet: 102
Pilot Jet: 40
Needle Clip: 4th or 5th Pos. (I ended up with 4th)
Air Screw Setting: 1.5-2.0 Turns Out
Stock Intake W/ Plastic Spacer
PE24mm FL Specs:
125cc Pit Bike
Premium 91 Octane Fuel
Main Jet: 108
Pilot Jet: 45 or 48 (We had 48, its a little rich)
Needle Clip: 4th
Air Screw Setting: 2 Turns Out
Stock Intake W/ Plastic Spacer
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Hey man this is a really great review. I bought my son the 125cc apollo for christmas. I 1st installed the Mikuni carb from amazon and it was def. out the box. I came across your video and after watching, I deciced to order the Nibbi 22mm carb. and the jets you recommended. After installing the NIB with the new jets and the settings you recommended, the performance of the bike is a night and day differnce. My 10 year old son noticed the differnce instantly, and it only took 1 kick to start. All that to say, THANK YOU for breaking all this down. You know your shit!!!
Super happy you found this and it helped you!
@@bearkreekboys hey I got a similar bike which you guys have what jets should I start with as I have a 125cc lifan engine with a compression ratio of 9.0:1 and recently got a 26mm nibbi PE carb and haven't been able to tune the carb since I brought it a year ago. What jets, A/F mixture screw setting etc
@@kriswhite9324he just told us to go with the 22 nibbi me being dumb went with 24mm 45 /108 1 1/4 turns out on the af screw clip on the lowest notch on the needle 26mm we have no info on that based on this vid
Appreciate the info. Not too many have the “KNOW HOW” on tuning pit bikes nowadays like yall do thanks bros!
You bet
Gonna try this tomorrow , just got a new carb hopefully i can get it running!
I’ve needed this video for MONTHS! THANK YOU
glad to help!
Same here thanks guys
This is such a good informative video on the carb!! I'm new to this all and just put one of these on a mini jeep. And I definitely need to change a few things that I have seen this!! Thanks
Glad to help! Thanks for watching!
Justo lo que necesitaba quedo perfecta con las instrucciones de 22mm
Excellente vid to very informative 👌
I have a 125 and tried the 24mm. Pain in the ass, couldn't get it right. So I got the 22 after seeing this and used the same jets, and bingo. It's not perfect but it's late and I just had time to put it on. Thanks for the vid it was good to see the comparison
Good stuff bros!
If you missed any of the Nibbi videos in the past I'll leave the playlist below! Hope this helped some of you that needed jetting tips and correct carb sizes! We will be riding with these carbs in a future video. czcams.com/play/PLRk5EEcptMbot_LhSrNlgR4o0ry0V9r48.html
do you have any social medias? maybe we can video chat and ill show you whats going on with my bike and carb to see what do you think .if thats ok
perhaps, what do you have going on.@@desertwolfarmory
I have the 2019 RXF150cc enduro. I have a mukuni 26mm on it. And it works great. Had a few little issues but its tuned well for trail riding. It Was breaking up in 4th gear with a +1 front sprocket at 100k./hr, 60mph. Idle and throttle response i have dialed in great.
Good to hear!
I have a legitimate question I can’t find anywhere for nibbi carbs or similar . Where do I find out what jets and settings should it be for 6000ft elevation?
Thank you 🙏
I'll do some digging and compare that to what elevation I'm at and it'll probably be a size or two leaner
@@bearkreekboyswere you able to find out ? I know I’ve heard to put the needle at the lowest position to make it rich . But other than that I’m not sure what to do ? My nibbi carb 22 should be coming in today .
We are around 1,000 feet above sea level so that means you would be leaner than us with being at 6000 feet. Try it stock out of the box and see, otherwise go in on air screw and drop needle 1 clip. richen slightly if its boggy. sputtering is rich, youll want to lean down then.@@desertwolfarmory
@@bearkreekboys so there’s 5 spots on the needle and it was set at the 2nd to last clip spot I’m assuming that’s rich and the higher I put the clip it’s leaner . So should I leave it at the second to last clip ?
@@desertwolfarmory try it there can always go up and lean it yes
I got a piranha 140 and it came with a 19mm carb and it took me awhile to get it running good! But I also have a 26mm knockoff mikuni carb I might try out. Or just swap the jets cause there the same style
I have Yamaha xtz 125 and nibbi 24mm PE carb,can u recommend other carb size or jettings? appreciate much
So I got 3 pit bikes 2 125cc and one 110cc I put a 22mm on my 110cc it ran the first time I put it on there but then after I got a new wheel and cover for the bike cause I got it cheap it wouldn't stay running some how I got it to run went up the street but the bike would die after halfway of throttle I put smaller jets in it wouldn't start up put the normal jets back in now it starts runs for like 3 to 5 secs and dies could it be something dying with like my magneto? Or maybe the wiring is junk? It's making me mad.
Great learning videos boys!
I’ve got a 2021 Max 20 125 without an air filter but a filter box. I’ve got the stock carb and am looking to upgrade to a 22mm carb. It’s for our beginner 12 year old so no need for high performance or bigger than 22mm. Which carb should I buy and is there one that doesn’t require or very little tuning? Thanks
Nibbi 22mm PE style would work for best performance. The knock off mikuni vm22 on eBay is good for cheap! That wakes it up slightly. You will have to do some tweaking either way to make it decent to notice a performance difference.
my predator 212 idles way to high when its hot, so i adjust the idle screw accordingly and when i try to start it cold it dont like to start. running 45pilot 115 main needle in third slot.
Any vacuum leaks around the intake? Also you may be off on the jetting for pilot circuit.
Jus got a ssr 125 and wanna do a little drag set up. Thoughts on 24mm with a big velocity stack? Can I get enough fuel out of it to match up?
From my testing the 24 was a little bit too big...
What setting did you have the throttle needle at and what size of main jet and pilot jet did you have your bike set at
All in description
Any jetting suggestions for Apollo 125 with a nibbi pwk 26mm
What do you have for jets right now
Oh shit. I might have bought the wrong carb then. Pz27 for my 110cc haha
But i have ported the head so it might work and i do all this for to speed and mid and high range torque and power
That's pretty big! Might be able to get it decent for your liking
What does it mean when my bike starts bogging after riding it. Cause it doesn't bog when I'm just sitting there revving it. But when it starts getting air from rolling starts bogging and backfiring.
Under load it must be either rich or lean, what does it do if u apply the choke when riding? What type of carb? Valve lash in spec? Good fuel? New spark plug?
I bought the Nibbi fl22mm for a 110 pitbike and it bogs if you rev it from idle to full throttle quickly also the engine starts to surge when riding from 1/4 throttle to 2/4 throttle and after 2/4 it goes away. I have tried all needle clip positions and the surging is still thereI am currently running a 32 pilot with the needle on the fourth richest position and a 95 main jet. Also I am not getting any black smoke from the exhaust and I am at sea level. What should I do?
Is the float height okay? Did u try going leaner on needle to get rid of the sputter in the mid range? It's tough to totally get rid of the bog off idle, usually big pilot jet helps, but then sometimes it'll sputter in 1/4 throttle then. Mine still bogs some off idle if I snap it, I live with it for now. There was some comments on this video with some more tips too
I have an rxf 150 with a 24mm nibbi I’m trying to get it dialed in I’m not sure what it’s jetted at right now but I do know I get a small backfire when kickstarting and have to give throttle to get it going I’m not sure if that means it’s running rich or lean also it does sometimes bog and stall while revving when first started but not while riding and after it’s warmed up ???? HELP if you can Please
Is the idle set high enough? Need to know what jets and settings are at first then play around with that
mine doesnt bog or sputter but at first it does and then it goes out once the bike is warm enough
That's kind of normal for them to kind of run a little goofy when the engine is cold but if it runs good when the engine is hot then you're probably in a good ballpark jetting wise
I installed the pe22 on my 125cc and did a 40 pilot 102 main and 4th spot on the needle. It's working mint, but my air screw has to be a little under 1 turn for it to run well. Do i bump up the pilot jet to get my air screw 1 1/2 turns out or just call it good where it's at?
That's your call, it is fine to run like that but wouldn't hurt to bump up then u can adjust again for different temp changes etc.
@bearkreekboys thanks man, this video helped me so much. I really appreciate it 👍
Would you recommend the 19mm or 22mm for a fully stock Apollo 110
19mm
Looking for a bigger carb for my 100cc 4 stroke and i ordered a pwk22mm but i am reading everywhere that its a 2 stroke carb and will not work on 4 stroke. Got some advise? 😅
Pwk is typically on a 2 stroke, I did make my 125 run with a 24mm pwk though, just rich..
Well I just found out something was up with my gas it was milky I cleaned it all out. But it won't Accelerate it wants to die but I did put the smaller pilot jet in it. Idk I'm trying rack my brain what's going on... might still be the magneto but I'm getting decent spark
Might be loading up on gas. If it only starts on with open trottle try lowering the needle and raise the idle
@luisnavarro880 I got it running. It still needs different jets cause it's a batch to start cold bur when it dose it rips just can't go full Throttle from a ideal but if I go up normally it hulls ass. Just been too cold to mess with it.
Hi! I have problem with start engine. Nibbi 24 jets 112 and 40 (serial). Do you think if I change pilot jet to lower it will help?
Have u check valve clearance?
@@bearkreekboys sure. Acc to instruction for 140cm3 intake 0.10 and exhaust 0.15. I have to kick twice with choking, then switch it off and try to start. When it starts I have to hold throttle until it will be hot - otherwise it will stop. When engine is hot there is no problem with start it again.
i just bought a newer 125 pit bike, extremely fast and it has a pz26 carb. however, i want to upgrade my carb but i dont know what carb to get or size or anything, you guys seem like experts 😂. what do you reccomend? im kind of on a budget too. and what jets would i get too? basicslly whats a complete setup i can buy for my bike? also im at 200m (656ft) ish above sea level too. The pz26 filter also has this hose at the end of the filter that i assume reburns backfire or something? what can i do about that on a new carb filter without accomadations for that hose? Thanks!!
I'd say the knock off mikuni carbs are a decent upgrade! They r cheaper than the nibbi. If u have a little extra coin, the nibbi is snappy!
@@bearkreekboys I bought the Nibbi 22mm Carb, just rigged it up and I cant wait to tune and test it out tommorow on the trails. Thanks brother! Just need help with how to know what jets to use blah blah but, Ill figure it out down the line.
let me know@@_christienn._
Get the vm22 cheap carb and disassemble it completely. Take out any shards and very gently setting back the brass fittings.
Then add 25 pilot and 110 main. And needle pin start at top position 1st clip then work your way down . This will adjust your wot
So on the YX140 with the 146 kit from tbparts and the high compression piston, it comes with the 26mm carb, do you recommend a 22/24 instead?
Ive had decent luck with a 26mm on the 140, some are fussy but most yx140 motors will run good with a 26.
Just have to see how snappy it is and maybe fine tune a little. I had a 140 stock engine with Chinese 26mm carb and had great power never really had any isssues
@@bearkreekboys I always have terrible luck with the 26mm on the 140, but the 24mm seems like the perfect middle ground. Being able to snap the throttle and still have some speed.
I have a 24 pe fl but its not red and black have a 45 pilot 115 main clip in the 2nd to last slot what would i do for more top end pilot bigger or main jet
Play with needle clip and main jet
Thank u bro it runs great just when im tuning the idle i have a tach set up to it trying to get it at 1500 rpm idle then when i blip the throttle quick all the way it bogs dosent shut off just bogs at wot i have went up on the needle still does it guess i will try the 22 mm its 60 bones tho 😢@bearkreekboys
Okay, i bought the nibbi pe 22. Came with a 98 main and 32 pilot, little biggy on slow end, so i went to a 38 pilot and a 100 main. Now is super sputtery, runs amazing on top tons of noticable power, so do i go higher on the main or drop back to a 35 on pilot? Thanks
I would be grateful for any suggestions
I'd say ur rich on low end. Do maybe a 35 pilot and mess with needle clip position. U can then adjust air fuel screw too to help clean up that sputter. Usually that's rich being a 38 pilot, I'd bet just lean down the low end a bit. And document what u did
Thank you i will, i am waiting on new jet kit atm.
**update ** received new jetts , changed them around , heading in the rigt direction tuning the carb. Running much better.
What did you end up going with? I have the same settings but it bogs when you WOT quickly. Ive messed around with the needle and it seems to be best on 4th but still cant open fast or it bogs but rolls on sooth.
35pilot
100main
4th position
1turn out
Nibbi high flow intake
Aftermarket short pipe
Any suggestions?
Would a 22mm be good for a 110cc it originally has a 19mm and im trying for more speed and power on the r9ad its got a new exhaust on it too
You can try the 22 might be better at wide open throttle, will suffer some snappiness off the line
@@bearkreekboysokay thank you 👍
Ripper 😮
I have a thumpstar 140 and installed a nibbi pe22 on it, I’ve played with the jetting, the idle screw, and have no air leaks and it’s idling way too high.. any advice to get it idling where it needs to be?
Choke on? Throttle cable and slide not installed correctly?
Choke is off after starting bike, cable seems okay and the tube is on the correct side I believe.. the divot is on the side where the idle screw is at
@@garretswart8111 something has to be causing it to idle high, recheck all throttle cable areas and make sure it has freeplay.
will this carb work on syxmoto 125c
It should!
Mabey ill try a 40 pilot instead of the 45/115 or a fuel pump of some sort
There's no need for a fuel pump you have plenty of fuel flow
@@bearkreekboys exactly cuz the plug is wet
@bearkreekboys guess I gotta live with that slow on the throttle it's only when I like crank it just sounds like it's flooded out stays running idk I wonder if the 22mm will not do it I already have a vm22 mikuni but that's on a 212 mini and it's perfect how I got it
So, whats better for 125 pitbike? 24 or 22?
22mm
???
Hi, on apollo is exhaust original?
No
@@bearkreekboys Can you tell me what brand it is why dirt bike model it is
140 cc
Nibbi 24mm
45, 112 jets.
Slightly lean on main. Will bump it up.
Nicee!!
Yup put a 22 on mine, boo yah!
Yeah they run pretty good with a 22!
@@bearkreekboys I put a 22 on my 2021 Apollo Max and it's awesome now, but I also put a 22 on my wife's 2022 Venom Thunder (an Apollo) and it friggin SCREAMS!!!!!!
yea i think my bike is too rich im going to pull out the spark plug and check
If it was too rich it would run worse when the engine warmed up
"Wicked fast" I smoke one of this on my small honda crf150r. The crf150r is also the slowest bike i owned. The apollo are nicely price thou.
Crf 150r is a race bike lol
Imagine comparing a race bike to a pit bike. It's literally the same thing as somebody saying "my CR85 is faster than a pitbike.."
Well no shit Sherlock 😂
Thats a full size dirt bike not a little pitbike
Had 3 knock off mikunis… they were all trash and tuning was horrible. Got a real mikuni but it was way too big for my 125.. broke down got a nibi 22mm threw a 115 main jet and it runs better than my Yamaha. Needle is 3 position and it is on the richer side.
Glad to hear!
I just purchased a Nibbi PE22 FL
It's for a Lifan 125cc
Comes with a 98 main and 32 pilot..
Also comes with 30 pilot and 92,95 and 100 mains
Do you think those jets would be enough to get me ballpark running right?
Cheers 😊
U may need bigger pilots to get crisp throttle response
@@bearkreekboys ok, thanks mate
I am looking at doing the same with same motor. What did you end up with? Thanks. @@DarrenBoxhall
@@user-ru4xb3tn5i ran the 32 pilot that it came with, then put the 100 main in and put the needle valve clip down 1 groove. Runs perfectly, snappy as, starts perfect
My plug was black with 32 pilot and 100. I'm at 1500 feet above sea level is this why?@@DarrenBoxhall