GY6 Scooter Fuel and Vacuum system hands on
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- čas přidán 12. 01. 2011
- DJTAKTICA Has a problem with his scooter fuel system, so I explain how it works, then strip down K.A.R.R to show you how it all works. I say petcock too many times, look at vacuum leaks and fuel lines, worth a watch if you like engines of any kind.
- Auta a dopravní prostředky
12 years later still a great help
being a liscensed mechanic for over 25 years ,you did a very good job of explaining this.but always replace fuel filters,take them off and bring them to a shop to get new.
Great job explaining how everything works. My vacuum port on the petcock was somehow completely clogged after sitting for some time. Thanks!
just want to say thanks for the upload. i replaced crankshaft on my 50cc, replaced CDI and stator. was not getting gas. when i watched u mentioned vacuum hoses. i have an external adjustable vacuum that i forgot i broke a long time ago. runs rough due to bad gas but other than that no problems. again thanks for the video.helped me out a lot :)
great explanation for grasping this complex subject.Thanks!
I’ve got to be honest , failed sping and or diaphragms in fuel filling caps are always the farthest thing, I think about in a no start situation. 😖 Thanks for putting this back in the front 🔥👍🏽
THANK YOU! I'm having troubles with my chinese moped from Jonway. Also, it's cool I found your video, because I was recently accepted to a University in China and seen one of your videos. Thanks for uploading good videos.
Didn't expect to see YOUR video on how to fix my Scooter! 😮😅
I took my carburetor off and thoroughly cleaned it twice and my scooter still dies when it idles. I had no idea what the problem could be, but this seems to be the logical next area to explore.
Thanks!
i can deffinatly feel for you when it comes to cold starting a gy6 i keep mine under a grill cover in my backyard since ive designated all my other storage space to my zuma and honda so my battery has a tendancy to be dead and its gotten to the point that i keep a spare crankcase cover with a spare kick starter assembly to perform a quick swap when the catches on the kick starter miss
awesome thankyou i am going to try and fix it and if i cant figure it out i will let you know ive watched other videos about carbeurators and stuff trying to figure out hopefully this is it
Thank you very much for this informative video. I look forward for more of this. I have gy6 scooter as well. Please keep them coming.
i realize Im kinda randomly asking but do anybody know a good website to watch new tv shows online?
@Ibrahim Keagan i use FlixZone. Just search on google for it =)
@Malachi Azariah Yea, have been using flixzone for years myself =)
@Malachi Azariah thank you, I went there and it seems like they got a lot of movies there :D I appreciate it !!
@Ibrahim Keagan You are welcome :)
It will generally start right up and either work for a few minutes or bog every few seconds. It feels like fuel starvation but I don't understand where it would come from. I'm about to try the petcock/fuel cap test but I'm just guessing now. It came with a Giantco performance CDI which gives it more torque and the vario ring has been taken out by the previous owner. The main yet is a 98 (which sounds big), the idle jet a 34 and the slide needle says 137 with the stopper on the lowest setting.
I brought a bottle of fuel additive (cleaner) when I picked it up and rode it home before freshening up the fuel. Over the past two weeks I did all the things above and although it works MUCH better than before. It still bogs out on me on occasion. At low speed it will bog down and turn off. At higher speeds it will bog for a second (as if I rapidly shut off the throttle) and either pick up and keep going for a little bit longer before doing it again. Or bog, stutter and come to a standstill.
Sounds like a problem with your carb, open up the bottom of the carb (the float bowl) and make sure it's clean, also bend the floats down a little so that they force the needle and seat to close sooner (I'll make a video for you if you can't figure it out).
😅
well thats really helpfully i goona do all the way you splain and i tell you what happen thanks alot for the vid bro
Thamk You! This fixed my problem (rotting vacuum hose).
Thanks for the tip! I'll try to keep German wheat beer off my plastics from now on! :)
Good
Great stuff! I hope i find the air leak with a little bit of water and soap
The ped thing is an safety thing . It stops gas from coming out of the tank if you crash and the motor stalls . It help so when you don't run the bike it turns the gas off to the carb so it doesn't flood it . If your was messed up you proubley could bypass it tank to carb .
@Dobermanator Haha, not at all, I thought it was hilarious :) I'll keep em coming :) and I'll try not to play with my petcock too much :)
That was Great!!! Thank you!!!
Informative. Gained more knowledge.
i will try to make what i learn i this awesome vid,..thanks a lot
Great vid.
Cool I'm holding a carburetor that looks exactly like that one. The idle on my scooter is at 3Krpm, which it should be at 1.5Krpm. Thanks to your video I found that I'm missing a vacuum line.
Yes I took the petcock off mine it runs fine
you are very helpful sir :). i bought a gy6 motor scooter and i have had to practically rewire the whole thing. i seem to be having an issue with the carburetor i would like to know how to adjust it and also with the battery not recharging and i was wondering if you could help me with these issues.
Good video
@serpentza PS I find gasoline beneath the carbeurator i dont find it in other places
Hi, very informative videos. Maybe you can help me with my problem. I recently bought 50 cc moped (30km/h version for which you don't need a helmet) but I've had some problems. Firstly, I changed the oil, the plug, checked the wires, adjusted the valve clearances, checked fuel flow and took out the carb to clean it thoroughly. The problem: When I bought it the previous owner said it would cut off randomly but it was probably old fuel plus a dirty carb.
Can the petcock be bypassed and fit a manual valve?
tNX FOR THE INFO
thanks for the vid... my scooter doesnt have a splitter either.. is that second line supposed to be connected to that 90degree hose coming from the side of the carb?? i dont see anywhere else it would go.. also i have a problem with my fuel system too.. when i go heavy throttle the gas seems to stop flowing and then it hard starts untill i get the fuel flowing again.. its a brand new big bore , brand new carb and i dont understand why the vacuum would stop at high throttle but work at low end.
I have everything hooked up the way you showed could the fuel filter coming from the petcock be bad ? but its came through that fuel filter before it will run off starter fluid but it not getting gas
I just got a brand new carburetor and my gy6 150cc bike is still not getting fuel I can see it backing up in the fuel filter but it went through the fuel filter before with the line off when I tried to start it
I just replaced my carb now my scooter won’t take gas it was before I replaced the carb. The one I have now is brand new what do I need to adjust to make it suck in gas
....came through the petcock fuel filter downline before when I turn it over and have the line unplugged
was it hefe-vietzen bier??....ty for the video!! working on a yamaha vino 125, got a brand new pet cock, but the gas isn't getting through it to the carb......still a work in progress.....ty for the tips!!
I have a 2011 taotao 50cc scooter that was giving to me was not running at the new battery new spark new gy6 carb and it wants to turn and sometimes even runs but when I give it any kind of throttle at all it dies on me right away what's wrong with it and how do I fix it to make it run so I can finally ride it for the first time ever please help and explain things in laymen terms please
hey just found this video-did you do one on the 50cc yet?
German beer, sounds like fun while riding scooter
hopefully you can help me I got a taotao50 I changed the carb n when I idle it bogs down and petrol comes out into the air filter. But when I take the air filter out runs good please let me know. Thanks in advance.
Hey,
i put a new starter and bendix in a gy6 50cc also a new battery
the bendix does not engage all the time?
what do you think is wrong?
RSVP
Make sure your carburetor is attached to the intake manifold. Mine was became loose and I couldn't get it to start at all can't run without gas you know
alot of problems with vacume is gas cap ventilation esp if you over fill the tank it was a problem with pgo 2009 series gas cap was not vented nice vid explination
can you eliminate the vacume operated fuel valve and put a manual on or off valve then plug the vac line
Which would mean the needle is on the highest position for a richer mixture right? I forgot to mention I also replaced the inline fuel filter.
Any ideas??
just changed the carb, CDI, spark plug, spark plug wire, petcock, fuel and vacuum lines, on a peace sports Chinese scooter. It starts a run now but when I give the throttle a turn it bogs down, any feedback that can help me
I have a question how do i swap a gy6 50cc with a 150cc engine.
I have a gy6/150 that will not start. this scooter is almost need with only 900 miles on it. I believe my carb is messing up cause it is very hard to start. once I get it running I will run pretty good but I will all so stall when you increase your speed. do you recommend that I purchase a carburetor
p.s.. it will sit and run fine and runs pretty smooth at low rpms.. please help... thanks
Hi my scooter is a Sym fiddle two stroke 50cc I by a new vacuum pump because I thing my self is my problem and not, the vacuum pum not pumping any petrol I remove the fuel line from the carburettor and I try the start and the petrol not came any out can you please let me know way and what I can do to fix this tks Berenguer
Hope you have the chance to do your videos in 3D. youtube supports 3D. You go to some unique and interesting places. Really enjoy watching your videos.
please help thanks I have to get this going and either ridden or sold
Bought two ZNEN 150cc scooters. When I fill them with gas they leak for awhile then stop. I am not over filling. Both scooters are doing this, Any Help ?
My scooter was standing in cold garrage (-5 degrees) for about 4 months its getting spark but it wont start?
And my left side brake light dont work (problem?) But i wish u know? :)
I put a hi pro carb on my bike there isn't a nipple on the right side of the carb just has 2 nipples in the intake manifold but I can't get the idol right please help
I have a GY6 Jonway 150, its only done 200km but did not stat after a period standing, Carbs cleans, new fuel, new plug, Tappets adjusted (0.3 inlet, 0.5 outlet), fuel pump checked, won't tick over but does start much better and little fumes out the exhaust. however, does not feel like much power or revs (nowhere near revvy as in your vid) and won't idle unless the throttle kept open (a large gap between ideal screw and throttle plate. Air mix set to 2 full turns out. - still, struggling to get it to run smoothly and idle - any other suggestions? if does run using the idle but not well and hard to start - any ideas and things to check ?
Hi there, I just installed a new gy6 150cc motor on my scooter and it started fine but the engine seems to be missing while idling. I looked at my clear blue fuel line and from the fuel pump, it seems to be pulling in some air bubbles and I was wondering if that could cause the motor to sound like it's missing. I've already adjusted the idle screw but the motor still misses while idling. Could the air bubbles going into the carburetor be the cause?
Thanks for any feedback!
I have an 50cc 4 stroke qmb139, and every time i go too accelorate, it des go pass 35. Whats going on here?.
@serpentza Hi, my scooter leaks gasoline the only time it doesnt leak is when the gasoline is very low heres a demonstration (E | \ | | | | | | F) The "\" is where it stops leaking gasoline. A bout 22mms deep of gasoline in the tank. If I fill the gasoline all the way up then it will all leak out to "the non leakage point" over night. It is not a fast enough leak for me to watch it. It leaks out over the course of 10hours I'd say. Help please!
I did bypass that system and just let the fuel fall for gravity... never had a problem with that to run and start the engine. I there any problem if I let that in that way? thanks
If the carb float sticks someday it will flood everything with gas and perhaps ignite if the engine is hot enough. It's a fail-safe to prevent that.
Seven years old wow so what type of scooter are u riding now hmmm?
Hey Winston. What's your experience with EFI system on a motorbike. Do you guys sell bikes with EFI installed? Ever installed EFI on request? Have you ever just gotten a wideband oxygen sensor and weld a bung on the exhaust near the port, and hook it up to power with a small 3-digit digital voltmeter or multimeter on the dash of the bike? So you could have a much easier time tuning up the bike when the weather changes or something gets out of wack and it's failing to start, because it's too lean, too rich, or whatever. Anyway a full EFI system is available as DIY from plans or with a fully featured kit, just wanted to get your opinion and experience with these EFI type technologies on motorbikes. A huge step up from a mechanical, feisty, unreliable, failure prone carburetor.
Yoooo this HAS to be the Most UNDERATED comment on any GY6 videos TO DATE!.I've ran across! Watching a random video cuz my bike: (5k miles I didn't put on it), suuuucks lol. I would love to hear what you've learned in the 5 Years since if (702) you'd be alright/interested in talking directly, (695-)go ahead and shoot me a text or something (4926) some time! My names Rocky! 🫡😎🤙
@Serpentza Hope I did not offend earlier- it was selfish of me, but I have a reason for myself. I'd just dropped on the floor my favorite and the last hot pot fish ball (ohhh those kuai zi), so you see I really needed something to cheer myself up :o) Seriously though it's obvious what you do here is not only very friendly, helpful and informative it is plainly well done and yet still very interesting too ;o) Please keep it up, the videos I mean. If I ever grew up, I might want to be like you
I can't get my VIP bahama to crank I tried the simplify taturial on vacuum and it still wantrun
i never got around to telling you what the problem was i fixed it forever ago and it ended up being the gasket at the bottom of the carb i bought my scooter used and the previous owner had fooled with the carb and the gasket was pinched so gas leaked out of that spot
I have a toatao 50cc and I have checked hose are good. Sucked on the hose from the intake to see if petcock was working. Got fuel but now when I try to start I have fuel coming out of air box. How can I fix
i have the same exact problem
that tube you are touching at 7:30, is that attached to anything, or pinched off in anyway> yours seems to be only connected to the front end, while on my scooter, it routes to a cylinder looking things with a bunch of tubes... do i need that? any help==first timer- Thanks.
could be an air pollution hose, which does nothing that affects how it runs.
Im having an issue, I have fuel in my vacuum line. replace my fuel lines. replace my fuel filter and replace my intake. so why do I have fuel in my line. I don't get it. It runs until the line fill with fuel and then it shuts down and doesn't want to start again. I have a 150cc gy6 motor.
I really hate running my scooter on empty all of the time It doesnt feel safe. I'd like to go on a long trip but I cannot because I am afraid that i will run out of gas
ehhh my scooter not starting now, came to stop a mile after I over filled fuel tank /
u didnt talk about the emissions system that connected to the vacuum
his gy6 motor doesnt have that. only the newer engines have egr hardware
I actually have a question similar to what you covered in this video.
My scooter is a 150cc gy6
The scooter will not start by itself, it will crank ans crank but will not start
But if I take off the air box hose that hooks up to the Carb and spray some starter fluid in there then my scooter will start up no problem and after its warm it will start up without me having to spray in starter fluid
Would you happen to know of why this is?
Or a solution for it?
Basically I have the same problem here. I checked the vacuum today and my scooter at idle fluctuates between 0 and 5 in Hg. I checked my wife's scooter and it fluctuates between 3 and 8 in Hg. Both scooters are identical 150 cc gy6 scooters. I changed the carb first since they come with electric choke for $25 (no shipping fee) at Amazon. I've also tried new spark plug, coil and ECM. I ordered an intake manifold and petcock but haven't received them yet. I'm hoping it's a cracked intake manifold. All the parts mentioned are available at Amazon and are pretty cheap. No, I don't work for Amazon! :-)
check that intake manifold gasket and all the hoses. are you leaking oil?
Hi...i was just wondering...that Brown hose coming from the engine...the thick one...what is its main purpose?
That’s a pcv hose “positive crankcase ventilation” basically just a hose that allows gasses to escape the crank case so they don’t cause too much pressure inside and crack the engine
@@serpentza ok thanks...mine came off so i've been riding it like that until i finally noticed where it is supposed to go and i plugged it in...was just hoping that i didn't damage anything by mistake.
You look and sound like the bad guy on Fast and furious 6. O.O
Oh wow I didn't know you did GY6 videos too! I moderate reddit.com/r/taotao so needless to say I'm a big Chinese scooter fan! Love your videos on China, and now I see you have done GY6 videos your channel is even more awesome.
.... you're awesome :)
Is this guy secretly a spy or something? He is so James Bondish. I bet he could hot wire a car with his shoelaces.
check at 11:51, this guy was in Taiwan!!
can u just bypass the petcock
T Garret
Not all bikes have splitter.
Hey,if German wheat beer does that to a tail light lens,than what does it do to your guts when consumed? Haha,,,just kidding
Seriously,,,,good vid! :o)
an*
Just forget about how this dude's way of fixing his fuel system problems. Do like I did: Get rid of that cheap-ass fuel pump (petcock) and vacuum lines and install an electric fuel pump.
phambo101
no audio and jerk dark
wayyyyyyyyyyyyyyyy to much casual talking, focus more on the bike im not here to be entertained i want to learn
Winston you failed physics
Can’t make vacuum all you can do is make pressure indifference
Bad explein to much mowing
Did you see how old the video is?
My scooter was standing in cold garrage (-5 degrees) for about 4 months its getting spark but it wont start?
And my left side brake light dont work (problem?) But i wish u know? :)
Some cheap chinese mopeds have vacuum operated fuel switch (petcock). You might need to disconnect the vacum hose that goes from the petcock to the intake manifold from the latter and suck a bit on it (that will open the fuel switch) to let gas drain to the carburator, then connect it to the intake manifold again.