I have watched dozens of videos mostly from pro riders mechanics and your video BY FAR trumps them all. The best explanation of how the inner workings of the float height and jet working together. Thanl you very much for taking the time to make & upload this video. Jseth '99 RM250
@TepcoCycleRepair
6 жыл бұрын
Thank you for the comment, glad I could help!
@paulk5311
5 жыл бұрын
agree
@ericmartinez4053
5 жыл бұрын
Total agreement!
@nicklings4855
6 жыл бұрын
Most informative video I've seen on how the float system works. Awesome.
@TepcoCycleRepair
6 жыл бұрын
Thanks for watching!
@michaelwachsmuth1583
2 жыл бұрын
Definitely the best video. Everyone else i seen doesn't explain what's going on and why
@ScottMiller-tu3gg
5 жыл бұрын
I have watched literally dozens and dozens of carb videos and you are the first to explain this! Thank you so much!
@TepcoCycleRepair
5 жыл бұрын
Cool, thanks for watching!
@kerowynkat1643
4 жыл бұрын
Thank you for explaining this. I had been having trouble with my dirt bike and after watching your vid I was able to adjust it properly. I Watched at least 20 other videos that did not help with my problem at all. Saved me a bunch by not having to take it into the mechanic. 👍
@TepcoCycleRepair
4 жыл бұрын
Awesome, glad I could help! Thanks for watching.
@aischaparker9471
2 жыл бұрын
oMG thankyou so much for explaining how these things work. ive been taking them apart following a manual but not really knowing what the hell im actually effecting. nice one.
@ericmartinez4053
5 жыл бұрын
Sir, that was one of the best videos I have seen in a while. I spend a lot of time learning from KZitem videos and all the extra chit-chat, self-promotion and rabbit trails are frustrating. I love videos like this that are no-nonsense, straight to the point. Excellent vid!
@TepcoCycleRepair
5 жыл бұрын
Exactly how I feel. I try to keep it to the point. I know what you mean. Thanks for the comment!
@SW-nq1bx
Жыл бұрын
@TepcoCycleRepair I wholeheartedly agree! You are so clear and concise about what to look for, what to do, even a TOTAL novice who has never worked on engines before, can understand. You should be a TEACHER for next generation!
@petewright3952
Жыл бұрын
Excellent and extremely helpful especially the simple explanation of the importance of the holes in the "emulsion tube (which is the name I prefer to use to stop confusion between jet needle and needle jet). Thanks
@markmassy2400
5 жыл бұрын
Thanks mate it's all starting to make sense, I have a 1979 Honda XR80 that's way to rich. I'm on it 21.5mm
@wowguy3562
4 жыл бұрын
Just bought a small boat engine today, I've taken the carb off at least 10 times, carb spray all the way thru ultrasonic cleaning in gas in a zip lock bag in my harbor freight cleaner, still didn't run right, it wasn't getting enough gas I think was the problem, after watching your video last, and getting the float to where it was just touching the float needle, I crossed my fingers and gave it a shot. Your video helped so much, fired right up and revved like it should. Thanks for posting this video
@TepcoCycleRepair
4 жыл бұрын
Heck yeah, awesome! Thanks for watching!
@johnnynunnery7113
2 жыл бұрын
I agree with Nick lings I learned more from this 5-minute video than I did from anyone else!! Thank you
@anthonyscott16
27 күн бұрын
I realize I’m super late, but I have to echo the sentiments that everyone is sharing. This video is by far the most direct and informative on this subject, hands down. Thank you!
@olddave4833
27 күн бұрын
I'm just wondering why he is using a carburetor that 99 % of the people have never seen
@TepcoCycleRepair
27 күн бұрын
Thank you!
@TepcoCycleRepair
27 күн бұрын
It's just what I had on hand, the same applies to any carb.
@azharmalik66
6 жыл бұрын
bro, God bless u. Your vid has enlightened me a lot. I'd no information about the functioning of emulsion tube. thanks again!!!
@TepcoCycleRepair
6 жыл бұрын
Cool, thanks for watching!
@lazarus2950
7 ай бұрын
Thank you! Just rejetted my carb and adjusted the float height but honestly had little idea what float adjustment did for the fuel mix. This helped so much!
@Chip6565
2 жыл бұрын
Awesome video. I never understood why it was so important to ensure the float level is set correctly and your explanation was simple and straightforward and to the point!
@vasilgarnev
11 ай бұрын
Awesome stuff! My scooter was running lean on standing on the stands and once I put the scooter down to ride it it would just stall. I was suspecting it was the float, but after watching your video I know this is exactly the problem. Thank you for the in depth video!!
@richardraby6266
3 жыл бұрын
Very informative and the first time that i realised that float-height was SO important for the actual mixture metering and not just to make sure you weren't running "dry" on fuel.
@Tod_Unctious
3 жыл бұрын
Hi Richard I totally agree with your comment. I thought it was just a reserve of fuel waiting to be used. We learn everyday.👍
@UnleadedApe
4 жыл бұрын
Great job explaining! My Xtrainer (pretty much all of them) need to be adjusted as they waste so much fuel, this explains the "why" great. Thanks
@TepcoCycleRepair
4 жыл бұрын
I'm looking forward to picking up a Beta myself. Thanks for watching!
@lexbrusb.1821
2 жыл бұрын
finally somebody knows about holding the carb at an angle while measuring the float height.
@bruce.chloereid6090
2 ай бұрын
Thank you for exposing the mystery of float level importance and effects.
@scott4300
5 ай бұрын
Great explanation . I've been tooling around with small carbs for a few years. And not explained a couple of things I didn't know... thanks
@Tod_Unctious
3 жыл бұрын
It seems a common theme to say how helpful this video is regarding the understanding of why the float height is so important. I agree with everyone of them. Such a helpful and simple video yet brilliant. I was reluctant to watch as I was looking for information on a bing carburettor and as your image does not show the same make I did not think it could apply to my carburettor. How wrong was I. Your video clears the intrigue and mystery regardless of the make of carb. I totally get that float height is your 1st thing to check. It is so obvious when this is explained they way you have. What a frickin awesome video. Thank you thank you thank you. I doff my cap to you Sir 🎩
@TepcoCycleRepair
3 жыл бұрын
Thank you for the comment!
@paulk5311
5 жыл бұрын
best and simplest video i have seen on the subject. i just watched a video of over 15 minutes and the guy said too high a float height will make it run rich but never explained why. with your explanation and simple drawing the message was conveyed so anyone should would be able to understand.
@bluevanila69
3 жыл бұрын
ive been lookin for this explanation like forever... coz many ppl talks bout HOW... how to adjust... how to do that and this... fewer talk bout WHY... tq...
@privatenoodle1049
2 жыл бұрын
So the main thing i have learnt from setting your carb on a bike is to ALWAYS check the service book(if you can get it) before tampering with different jets. great video, ride safe...
@ljckclark8973
2 жыл бұрын
Best video I have seen on this. I was trying to understand why being a mm out on the float level would make much difference, and you clearly explained it. Thanks!!
@matthewbarton9928
6 жыл бұрын
Amazing video. I learned loads thank you from the UK
@adeel.designer
5 жыл бұрын
finally i understand how to adjust float height properly without having a spec manual. Thanx for sharing knowledge...
@TepcoCycleRepair
5 жыл бұрын
Excellent, thank you!
@Janovich
3 жыл бұрын
Perfect. First video that actually makes me understand :o
@timdavisphotography7366
Жыл бұрын
Best description of float lvl and why it matters! Thanks!
@ahahaa1602
Жыл бұрын
thank you. Gonna try this but this video is definitely the best in depth explanation of adjusting the float and how it works.
@alexjohnson3696
2 жыл бұрын
Awesome, thanks so much 👍
@DudeGuyWho
2 жыл бұрын
You've put together an awesome channel. I think I've saved at least 50 videos to get back to. Thanks much!
@TepcoCycleRepair
2 жыл бұрын
That's awesome to hear, thank you!
@MatthewGill-nv4tb
Ай бұрын
I have an 83 xt200. Theres an older guy in my town everyone takes their bikes to. My float is different it doesnt have that tab and the spring is on the outside of the needle. The guy looked at and his suggestion was to just buy a new carburetor. Any float with brass components is adjustable. You just have to figure out how. Im just pissed that im getting all these videos AFTER i fixed it. Great video and explanation. Im just making this comment for people that have one like mine which i havent found a single video for
@Adrian-jk4kx
5 жыл бұрын
Thanks....clever little devise the Carburetor.
@TepcoCycleRepair
5 жыл бұрын
Yes it is.
@isaacpulido1510
5 жыл бұрын
Thank you sir, from Lake Havasu City Arizona
@TepcoCycleRepair
5 жыл бұрын
Thanks for watching!
@LCARSADV
4 жыл бұрын
Outstanding video, thanks for doing that!
@azharmalik66
2 жыл бұрын
thanks for this detailed video on the emulsion tube and the fuel level. May God love and bless u!!!
@TepcoCycleRepair
2 жыл бұрын
Thank you my Friend.
@davidsizemore9906
3 жыл бұрын
i've always known that proper float level prevents fuel overflow and fuel starvation. i didn't know it effected the fuel mixture??? thanks for the video.
@TepcoCycleRepair
3 жыл бұрын
Heck yeah, get it dialed in!
@aaronrose186
2 ай бұрын
Very discriptive and makes a ton of sense.....thank you sir
@samiismail8690
3 жыл бұрын
This video sorted out my rich jetting issue! Many thanks !
@p1nt0n6
4 жыл бұрын
Just wanna say thanks man.. Finally i know what are those hole all about..thanks man.. awesome. Hopefully you can explain more about brass pipe in front of pilot jet ( usually in PE28 KEIHIN carbs) Thanks.👍👍👍👍
@jamesmerritt4765
4 жыл бұрын
I'm regretting a 250R can I go very low and I'm still very rich in main jet so this video really just helped me out a lot thanks keep up the good work Buddy
@TepcoCycleRepair
4 жыл бұрын
Yeah make sure your float level is at the stock set height. If you're still having rich problems make sure your slide needle is not floating and is locked into position.
@gasnxt6805
2 жыл бұрын
Well there you go. I will now fix the rich mixtures on my dt200r. Thanks heaps.
@joef.3094
5 жыл бұрын
best explanation (actually, the ONLY explanation) i have seen regarding the effect of float height on fuel mixture. good job. i would add, for those new to the inside of a carb, that the plunger on top of the float needle is spring loaded and you should be able to depress it easily and it should spring right back . sometimes varnish from old fuel will seize it up but i have a good record of bringing them back to life by spraying with carb cleaner.
@TepcoCycleRepair
5 жыл бұрын
Good point on the plunger, I went over it in another video, thanks for watching!
@thomashansen3450
2 жыл бұрын
finally I´ve understood the system, thank`s v.m. Thomas
@charleswest3008
Ай бұрын
Thanks so much for this very thorough explanation!
@cramersclassics
Жыл бұрын
Excellent video. Concise, illustrated and well narrated. Even after rebuilding a 1000 carbs I learned something. Bravo!
@omrjordan4847
2 жыл бұрын
Finally an explanation that I could understand. Thank you sir
@Spartan375X
4 жыл бұрын
I've been trying to study carburetors for my bikes for almost 4 years now and I'm barely starting to make sense of these things. Thanks for this bit of info!
@TepcoCycleRepair
4 жыл бұрын
Your welcome, carburetors are awesome things.
@Youtubecensoredmyusername
4 жыл бұрын
Spartan375x I know what you mean but it’s not rocket science. If you lean carb only a little and it’s dripping fuel from the float overflow fuel level too high. If you’re wide open throttle and after 10 to 20 seconds it bogs down float height is too low
@mohsenkiae5462
5 жыл бұрын
Thank you so much man !!! Great explanation !
@MrJames-dk3my
4 жыл бұрын
Great explanation, very simple.
@patfrehner5906
5 жыл бұрын
great first one with super explanation.
@TepcoCycleRepair
5 жыл бұрын
Thanks for watching!
@rikmeyer1469
2 жыл бұрын
Fantastic explanation!
@BanditK
2 жыл бұрын
Tab doesn't go out of adjustment but does get a notch worn into it that can get bad enough to throw things off at idle
@pradeepwijesinghemuhandira6146
5 жыл бұрын
Finally the importance of float level is revealed. Thanks a lot for simple but very [powerful explanation. Though the float level prescribed by the manufacture is achieved still we are not sure if the float level is sufficient to submerge the first 2 tiny holes of the main jet holder. It would be nice if you can reveal us the trick.
@TepcoCycleRepair
5 жыл бұрын
Each emultion tube is different for different applications, some carbs have different ones you can chance to achieve different results. If everything is stock the stock height is sufficient to work with the emultion tube. Many people adjust the float to try to fix other issues, which in reality it should almost always be set to the stock height and the running problem lies elsewhere. (Usually jet sizes)
@antzlink
6 жыл бұрын
Great thanks for the explanation understood everything
@niconine268
Жыл бұрын
Fantastic simple & concise tutorial. Thanks bro. Big help
@andrewengland971
2 жыл бұрын
Ever since I switched to race fuel on my yz125x and now I deal with float issues. Leaks outta my overflow. Never did before.
@TepcoCycleRepair
2 жыл бұрын
The fuel shouldn't cause float issues. Just double check it and make sure no debris is stuck in there.
@andrewengland971
2 жыл бұрын
@@TepcoCycleRepair cool. Thank you for the tip.
@clivesilk3501
2 жыл бұрын
This really helped !! Thanks I adjusted the tab wrong and it flooded I’ll level out the tab and see if that corrects it
@theilluminatimember8896
4 жыл бұрын
Now I can sleep thank you 🙌
@lbeck119
6 жыл бұрын
Awesome video.... Keep them coming
@ivanthompson8870
4 жыл бұрын
Well done . best and simplest explenation so far.
@prout27cat
2 жыл бұрын
clear, concise priceless exlplanation thanks
@kelhawk1
3 жыл бұрын
I replaced my 125 Xmotos carb with a 22mm Mikuni, then moved it to my retirement property at 7500ft elevation about two years ago, where I normally spend my summers. I think I may have lowered the float back then to help with the altitude, then never followed up on it...can't remember...Covid1984 makes it all so hazy...lol! Currently it will not run without the enrichment lever on. Been tryin needle and main jet, and suspecting the lean float was starving all the stages. After hearing you confirm that, I can't wait to play with the float adjustment! Hopefully I will soon happily update this comment! Update: Disappointed. I feel have taken the float adjustment from one extreme to the other, yet the bike will still not run without the enrichment turned on. If I blip the throttle ever so slightly, it dies. Getting rolling requires slipping the clutch at fast idle, but applying *no* throttle until up to speed. It will accelerate only at full throttle, and the exhaust sounds like it's lean and backfire tends to occur. At this point I wish my original carb hadn't got left back in Kansas! Lol! Now I am wondering if old fuel could cause this? I had a TT250 decades ago that ran but wouldn't accelerate till I finally ran my number size drills thru all the jets. They looked clear, but had a thin layer of "varnish", effectively reducing their size. Does this also happen with ethanol blend fuel? I am sure the jets are clear but have no idea if maybe the year old fuel could be causing these symptoms. Guess I will drain the tank and try some fresh...not real hopeful tho...
@RobbiRocks
Жыл бұрын
😄 These floats have been a pain in the ass, but Thank you, this has been helpful
@geoffreycasey875
2 жыл бұрын
Great video..👍🍀🇮🇪
@cornpuff9532
2 жыл бұрын
Great video. Thanks!
@niconine268
Жыл бұрын
Nice one. Clear & concise tutorial
@jakehardy3980
2 жыл бұрын
This helped a million! Thanks!
@briangreen591
3 жыл бұрын
the only time fuel is in the area around the emultion tube is when the engine is not running, when the engine is running the needle valve controls how much air is blended with the fuel being metered by main jet, float level controls the amount of vacume requied to pull fuel up from both jets,, the pilot jet emultion tube flow is controlled by the size of the holes in the tube. your explanation is only part correct.
@shanebowen2313
3 жыл бұрын
Great job I finally understand somebody
@ilikecoco425
Жыл бұрын
Omg thank you so much you just saved me hours and money your the shit
@denisthek
2 жыл бұрын
Thanks great video and to the point-don't know how you can take the cold-your pretty tough.
@tonycerruto5157
5 жыл бұрын
Great vid man, thanks. I've been having a Hell of a time trying to adjust my Keihin PKW on my KDX200. Was dumping fuel really badly, also running way rich. Seriously bogging on the low end. So I Lowered the floats to cut fuel off sooner. That stopped the dumping of fuel but its still bogging when I crack the throttle. I backed the fuel/air screw out so much that it shook its way out on a trail ride! Should I mess with the float tab some more? Its a new float from a rebuild kit. If I re-jet from stock, what main jet should I go with? I also live in NC. Weather is cooler now. Not crazy humid like this summer. Thanks again Brother. T
@TepcoCycleRepair
5 жыл бұрын
Set the float height to the stock setting, I wouldn't adjust it to fix a problem. Your jets should be in the 42 pilot and 155 main or somewhere around there. The mixture screw leans it out when you back it out so a bog down low will be worse the more you back it out. Set it to 1and 1/2 turns out to start. I can walk you through some jetting if you need it but start out by making sure everything is in good order, air filter, silencer, plug etc.
@greasebeast1
5 жыл бұрын
Are you sure about the source of the air that surrounds the emulsion tube.?It seems to come from the small passage at the air input side of the carb, not leaking in around the main jet. Also, I believe all the small holes in the emulsion tube are for air and not for fuel.I believe all the fuel should come through either the main jet (not idling) or the pilot jet (idling).
@TepcoCycleRepair
5 жыл бұрын
There are vent lines that let air adjust in the bowl and around the emulsion tube, my explanation starts at 3:10 about the emulsion tube. Yes most fuel comes through the main jet but if the float is set to high, higher than any of the holes it will suck fuel through the holes as well. To many holes under the fuel level=to rich to little=to lean. Hope that clarifies it better. Thanks for watching.
@raulandchristinaparra4677
2 жыл бұрын
good video, straight forward and helpful.
@nickellegalang3025
Ай бұрын
You are such-like a genius
@adamperry5693
Жыл бұрын
Great video- learned a lot
@eg6199
3 жыл бұрын
Great job man. Well done, clear explanation.
@vagishgpatil3013
2 жыл бұрын
Today I cleaned the Carb 3 times and It's Starts the Scooter but when I pull the Throttle It's Shutting off..MAY be It's a Float Problem.Where the pilot her may not be getting enough fuel
@tonykartracer8032
2 жыл бұрын
Good explanation, sir! Very much appreciated.
@shinjrock7778
3 жыл бұрын
New knowledge for me, thanks sir
@brentmarsh1325
4 жыл бұрын
I think that this is the video I've been looking for. I can't bring my idle jet out ( lower RPM) far enough to lower the RPM. it falls out before I reach that point. and that means I can't turn my air/fuel jet out far enough to to get the proper lean. Its idling way to high.
@TepcoCycleRepair
4 жыл бұрын
Check your throttle cable adjustment to make sure the slide is sitting on the idle screw first.
@brentmarsh1325
4 жыл бұрын
@@TepcoCycleRepair Very good point. I'll have a look
@SureshKumar-gt2lw
2 жыл бұрын
Excellent 🔥
@calvinmartykleinmcfly6998
4 жыл бұрын
Really great advise there. Nice going.
@Aridrona
2 жыл бұрын
Short answer,it affects your jetting.
@slixeny2atl754
3 жыл бұрын
Thanks so much for that information you just helped me fix my 2013 yz250 it was revving to the moon after start up previous owner said that it needed carb work thought it was the crank seals were bad and caused a air leak and had bike screaming after starting. After watching this video I observed and noticed He or someone else messed with float height causing the bike to get massive air and little gas. Would of never know if it was for this informative video 🤘 you rock bro Ps- I ordered a lectron carb two days ago to see if that would fix it. Should I keep lectron carb or return and get money back since I fixed my problem???
@TepcoCycleRepair
3 жыл бұрын
People say alot of good things about the lectron. You can easily sell it if you don't need it and loose very little on the resale.
@DirtbikeDad
Жыл бұрын
I’m starting to think my float is not adjusted correctly. When I first got my bike (yz125/144) it would leak out over flow. Replaced float with a new one and adjusted it to stop leaking. It’s been fine on most part until I was out on a long ride. Bike had a new plug and when I got to about 1/2 tank bike seemed as if was running out of gas. It would loose power then snap back in then do it all over again constantly. I replaced plug and ran fine briefly until same issue. Plug was still new looking when pulled. Haven’t rode since. Not 100% that’s what the issue is but it’s a possibility. I am going to play with it a hair just to check it out plus check reeds and clean petcock. Any input you have would be great. Best explanation of float main jet by far
@TepcoCycleRepair
Жыл бұрын
Set the float to the stock height, most likely it's something else. Possibly vapor lock.
@thamizhiniyans7481
4 жыл бұрын
Thanks a lot for the enlightenment
@SoddingaboutSi
4 ай бұрын
Float height does go out of adjustment.
@georgecarmel6114
2 жыл бұрын
Nice explanation!
@bobvansand6346
5 жыл бұрын
Thx Mate very good! Bob 🇧🇪🍺Belgian
@tstricklin4808
5 жыл бұрын
Thanks
@jorgekokymazariegos256
3 жыл бұрын
Great video, thank you
@erichess5566
2 жыл бұрын
Great explanation!
@andrewsantos171
3 жыл бұрын
Very helpfull..thank you sir
@apriliaaars
5 жыл бұрын
great
@motorsportministries7843
3 жыл бұрын
Very helpful thank you sir👍🏻
@MatthewGill-nv4tb
Ай бұрын
How will you know its the float..... it will idle and die as soon as you touch the throttle
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