GY6: Finding Vacuum Leaks

[@art-ov9vh]

same problem i took the siding off and saw it right away it was popped up nothing needed replaced just needed toughen . thank you for your video it helped me a lot easy to follow

[@victorvillarongoarce1160]

Thank you ,Joey, your tips on how to find vacuum leaks in your carburetor it's fantastic .Thank you

[@gustavorodriguez412]

You can also use a propane torch (not lit, of course) open the valve and run the torch over the hoses. If there is a vacuum leak you will hear the engine rev up higher, and the propane won't affect the plastic parts, the rubber or the paint.

[@maxamil]

I appreciate your manner of presentation and information conveyance. by far, the most helpful i have found. thank you

[@chriss4365]

Someone said to check the fuel screw i had it at only one turn because their was a vacuum leak from a broken rubber valve in the carb that is part of the vacuum line, after changing it and turning the screw out 3 turns it runs better but still has random idle speeds that change but not too drastic. My muffler makes alot of noise too i think its shot and is alot of exhaust coming out im guessing because its worn out and not creating back pressure from the exhaust screwing up the carb adjustment.

[@olddirtyburt7522]

Great diagnosis. Have an older GY6 tao tao and it doesn't want to stay running and has no power. I'll use the instructions you provided. Thanks

[@JoeysGarage]

Great!! Were u about to get spark?

[@DeemMeUpScotty]

What about if it keeps getting richer and richer? Mine idles beautifully until I’ve ridden it a couple hours or so and then it’ll be idling crazy high

[@curtisss]

Idk if you found your issue but if it's EFI, id check for a stuck injector

[@georgiemelendez6154]

I always watch your videos they are very clear n good.

[@vakalzz2512]

While cranking the air feels near engine is it intake manifold air leak or engine block gaskets

[@07LUTE70]

Can that intake if it has a massive leak could that prevent the throttle from acceleration. You see mu gy6 idles good and starts easy but the minute I accelerate the engine dies. I was told that all you need is one vacuum line to run bike, but what do I do with vacuum line coming from petcock that makes suction for fuel to carburetor and what do I connect this little filter with a one way directional arrow that's coming from the top of the fuel tank in other words I have two lines coming from fuel tank one is fuel going to input of petcock then this other one that used to go to this canistor which I eliminated that said I beleve pcv on top. Guess that canister made of plastic had 3 lines coming off it. The actual pcv line on top of valve cover is going to airbox. I was going to get the nibbi type of cold air intake with curved tube and all but decided instead to modify my stock air box which I think I did a pretty good job modifying. But I do need your help with this line coming from the fuel tank with an arrow on it pointing away from the fuel tank. Hope this is not too confusing Joey? 8:18

[@joeycottontailakajoeschmo3366]

To sum it up spray shit everywhere. I watched a friend use his impact on those intake nuts and forget to reverse it back to loosen. Snapped that sumbeech right off. Hahaha

[@JoeysGarage]

Lol. Yes, but the spray is direct at specific parts at a time. If it is sprayed “everywhere” at once, the test wouldn’t be conclusive. 😉

[@501344]

My scooter will run fine only if I take off the carburetor cap . what would be the problem ?? Thanks

[@matari7183]

Nice job and great idea to find leaks. Never thought of that. Thanks. Thumbs up

[@JoeysGarage]

+Matari 7 thanks. Air leaks can cause performance problems. After the video I went back and checked every inch of the vacuum lines. Found a couple sections with hair line breaks. Replaced those sections also to prevent future problems.

[@erniebarendse6366]

Why is the air screw not made a differens when you turn it..

[@hitmanworldpromotions6798]

' my flange is broke like the one your working on but worse would that cause my fuel pump not to pump because of vacuum loss

[@mikebrossoit5617]

Went through your video for troubleshooting for no spark still no luck . Watched how to test break switch , have power on both in and out ???????

[@chriss4365]

I changed this and the bike ran better but still has issue with unstable idle. I had to remove the manifold again and the bike finally ran. after 2 months their was a leak again in this stupid area but resetting it fixed it for now but still cant get idle steady and carb sputters. Could their be leaks in the carb seals too?

[@cybersonic5387]

I was wondering if you could help me with an issue I'm having with the air box. Some of the rubber portions have ripped off on the connection . Almost like a ring of rubber ripped off because of wear and tear. Consequently I can't seal it will on to the carburetor. Almost like it's too short now to even extend to attach because of the ripped off ring a rubber. Do you have any advice or recommendations on how to seal the airbox to the carburetor that goes into the airbox?

[@tonywhalen3677]

liked your video. I have gy6 50 cc motor that had a crank bearing knocking. run great it would do 40 easy. anyway long story short . out my back up motor in12/2015. well now it having problems. to first motor apart lasnight . yes I want to rebuild it and make it bigger cc engine. where suggest to get the parts from what all do I need

[@JoeysGarage]

+Tony Whalen scrappy dogs, nycscooter parts, parts for scooters, and gy6 racing team in eBay are my goto stores

[@f1guremeout]

Parts for Scooters and Scooter Domain are in FL. PFS has great customer service, I recommend. GY6 150cc rider from MIami here. *Subscribed*

[@1supernumero]

Intake valve supposed to be closed??

[@peterkluge9833]

hi how are you i don my GY6 150 scooter engine put new rollers new clucht and its the same it dont hove power in the up hill please help

[@VirantRoss]

*I have a GY6 in my Yerfdog Rover that was working perfectly and I changed the air filter now after replacing I'm getting no fuel.. Fuel filter dry, no gas pulling from tank.. What happened here??*

[@andrewstewart6172]

Same here man

[@Derryjones2]

thanks....., I see a lot of aftermarket performance parts that look identical but have different prices a different claims of performance and reliability.

[@Pnasty180]

Awesome Video! Mine acts up when riding like shuddering and comes in and out. I installed a brand new carburetor still doing it but not as bad Please Help!!!!!

[@chriss4365]

Mine could be this it has no obvious leaks but the idle is crazy and it sputters almost sounds like a tiny backfire. I can hear noises in the air filter too when it sputters. Also inside the carb is a rubber valve for one of the vacuum lines it had a hole so i replaced it with a spare one but it still acts up seems to be fixed then i have to turn screw way in just to keep it running. Just realized i commented 2 months ago eh.

[@rockstargamer7936]

Your slow dude.

[@chrismesser256]

Ive installed a big bore kit it runs good on stand but dies before it will accelrate

[@JoeysGarage]

Sounds like an issue with carb adjustments

[@RedzicAnel]

I installed big bore kit,now scootee bogs on idle and full acceleration, and spitting fuel on carb on full thortle

[@edgarslacis7842]

Rich case

[@christopherbhojedat1826]

Rich , or floats needs adjusting , or the side diaphragm in the air valve of the carb has a tiny hole

[@ironhead320]

That spacer is that needed

[@MrCreativeHands]

I only use the paper gasket between the engine & intake manifold pipe, & the plastic one between the pipe & the carburetor.

[@christophergoldman4310]

Ran in to this issue for awhile now. Its driving me insane. Just got it out of the shop on saturday. Said they replaced the fuel filter and adjusted the valves. Ran about 5 miles and died on me again. Step father bled the fuel line and it ran until 530pm monday. Crap load of sediment in fule filter. Cleaned it out. Blew thru hose to clear out the line and "pump"(?). Ran it for 3 miles. Fuel filter has crap in it again. When it died at 530 all i did was pull the lines to to engine. Not the fuel line the one into the carb and the other. Im at a lose, atm its running but i feel its only a matter of time till it happens again. Need to find out to keep this from being presistant. I have no clue wtf to do lol. Its definitly not the idle!

[@JoeysGarage]

I would check the fuel tank. Is it dirty? I’m thinking of working it in steps. Is fuel clean going into tank? Is tank clean? Then goes through the line. Lines good. Is there a petcock between tank and carb? Somewhere there’s a cause in that cycle.

[@jameswaters3599]

What does it mean if the engine dies when spraying the joints? I changed the vacuum lines and added better hose clamps and my scooter is running better. Just thought it was wierd that it worked in reverse by killing the engine not revving.

[@BryanParker-f7f]

Very helpful

[@susanstebila8707]

I can’t even get it started I have tried everything…won’t start.💥💥💥any ideas 💡 I am about to replace the Pitcock with just a one-way gas outlet and just omit the vacuum. I watched another guy on KZbin and it worked for him cause I’m not getting gas no matter what I do anyway let me know what you think please I’m working real hard on it Chinese scooter I’m ready to drive it off a cliff .😢😊

[@Juppie902]

Hey Joey, I have a kymco movie 125 gy6 engine 2011, which on the first start of the day runs fine, then after a minute or two the rpm's rise (almost like the electric choke was closed and then opened) and so my clutch tries to engage and drives forward a little (if i hold both legs on the ground i can feel ever slight pushes but nothing dangerous) What can that be? Engine had compression problem that was fixed (new piston and cylinder, exhaust valve was cracked due to backfire, in short engine head) and carb tuned (and re-tuned by me after the mechanic) Forgot to mention: after the electric choke heats up, around 3 minutes overall, closes, the rpm's drop to normal.

[@JoeysGarage]

Does sound like an electronic choke issue. They do go bad after time. Have you tried disconnecting the choke connector? Next thought is the valves. Have they been checked after the engine work?

[@rockstargamer7936]

Warm it up for ten minutes to proper running conditions its not fuel injection dumdass.

[@njamele]

i have a loose hose clamp over my intake manifold that seals the rubber to the carb, could that be why my vacuum line wont pull gas? when i disconnect the vacuum line and suck on it, i get steady flow of gas. when vacuum line is on carb and i try to start theres no flow of gas. thanks. i think its a faulty hose clamp...

[@njamele]

dreamingwolfsocom sure was! I had gas in the tank for over 6 months that had just been sitting. I cleaned the gas tank out put fresh gas in and it started right up. I guess you can't leave gas in the tankjs for too long before there's crud in your gas. thanks again!

[@markzimmerman7279]

@@njamele they say a month or so,and sta-bil and stuff like that is ineffective according to project farm on KZbin

[@andyluna2476]

Hello joey i have a question i have a gy6 150cc iam getting gas in my crankcase change out carb no luck any info would help thanks

[@Spitfireseven]

That was a big help. I was getting pretty frustrated.

[@tauseeqkhuhro2706]

My scooter not working I put in inside my home for 1 night and next morning went to get fuel and it cut off on my way I had to change intake 1 month ago or 2 I changed the carburetor it doesn’t have air filter and the starter doesn’t start the bike well that issues was fixed after I changed the stator and it was starting on button but then now it doesn’t and now it doesn’t start at all one time I order new spark plug on amazon for 6 dollars and after 2 days that got burned why and why it’s not starting you think? Help me

[@_li1.loc3_8]

does anyone know the o ring size for the black gasket he replaced

[@OGmolton1]

around 3:05 where you explain that it could be getting leaner as it runs specifically becuase of these vacuum leaks was like an aha moment for me with the crap I'm currently dealing with... does the problem tend to be worse when you first run an engine opposed to after it's been running a while?

[@atvsinacadiana]

Care should be taken to make sure you don't have electrical shorts before using starting fluid or a combustible. I've seen it happen! Keep a fire extinguisher or baking soda handy.

[@gerardowen359]

I've been trying to figure out why my gy6 won't start after putting on new carburetor and I think you may have just showed me what the problem is. " Vaccum" issues

[@akhileshmanandhar3597]

plz show the complete maintainance, its good

[@capxtalh2x10]

I have a 150cc and I just the head redone but now my muffler smokes what could it be. And thanks for all the help u you give in your video

[@crackpipe_mike6963]

ik im 7 years late but sounds like a faulty head gasket letting oil into the combustion chamber

[@toxrozzx8158]

Hi. I had this same problem, but then i fixed it. Sometimes when im stood still at a red light and it turns to green and i accelerate, my engine kinda dies and then gets going again? What could this be? And it only does it sometimes...?

[@rockstargamer7936]

Warm the engine up up to proper running heat conditions its not fuel injected duh.

[@mitchellstephens8011]

My 2006 Benzo starts but bogs out when I ride. Acting like it's not getting fuel. Any advice

[@abudhabi4972]

i have burst of flames when trying to crank up the gy6. why? all parts are new. new piston new everything,

[@worldcollections2839]

please tell me what is the symptoms of Vacume leaking ? what problems could happen to the scooter if there is leaks?

[@alishiadavis8033]

I’m going to try this because I have a go kart with a howhit 150 engine and it turns on but won’t drive when I hit the gas ... I have change the carb the fuse the spark plug and the spark ignition i cannot figure out what to else to do !?

[@jamieosborne5281]

Mines doing same thing 😒

[@mmganesh6087]

hello mr joey mine is a sym scooter. 125 cc. 7 am started and went out .... 7 .10 am the scooter stops just as it was going. engine stops. i kickstart, self motor start, the engine does not start. my scooter piston, cyliner kit, spark plug, ignition coi, cdi unit, has been changed to a new one just a month ago. i call my mechanic person telling him that the vehicle is parked by the road and i am taking a walk back to home. He says- hmm... all things are new.. maybe a vapor lock has occured.. I start back home and at at 7.20 am I decide to give one more try to start the engine and i did and it started !! . I phoned again to the mechanic that the vehicle has started again and drove back home. Had the engine not started he would have found out the problem . BUt now the scooter is running ! I simply dont understand what was EXACTLY the problem that led to the vehicle not starting. I would like to know . Can you give me some clarity as I see you are very interested in the puzzles of a vehicle not starting... .It is over a week and my scooter keeps running well ! BUt I am not confident that this vehicle will run well... It may stop any time because i have not yet found out the problem and rectified it . kindly offer some help. thank you. ganesh from india.

[@rockstargamer7936]

Keep fuel and airlines of the top of the engine case with a zip tie or something. Vapor lock is when you the hose gets to hot fuel will not flow right

[@mmganesh6087]

@@rockstargamer7936 I was told that it was an airlock problem. Over 3 ;years now and the scooter has not had any such airlock problems so far...

[@tuanoful]

Can I use like bug spray? dehodorant? anything that's combustible

[@namelesssnitchy]

I have parts cleaner is that also okay to spray on it? Or does it eat the rubbers too much?

[@bennieeastes5243]

Hi how are you doing why do my scooter start smoking

[@CmurkGam3ing]

I'm not exactly happening to tune it but sometimes the idle is high and then other times it's really low could I have a vacuum leak

[@rockstargamer7936]

Bad operator

[@stomptheelites]

I'm experiencing High RPM, is it an air leak? I changed everything else.

[@christothegreat1]

Where did you get the add on foot pegs.

[@jamesskates5229]

Joey, my tao tao will start and idle fine but bogs when trying to ride. just replaces cylinder head. is there anything else I didnt to do? gaskets, fuel or vac hoses? also, the carb sprays sometimes sprays fuel when starting. need help please

[@TheMerc2112]

Thank you very much!!!

[@sandervis1095]

Very helpful, thank you!

[@MrSlicer2424]

Great video and the lady killer Stache is still intact.😉

[@JoeysGarage]

+MrSlicer2424 Thanks brother. At that time it was. But I did a whole set of GY6 videos for yearly preventative maintenance. At this time the stache is gone. I like to keep switching styles. I'm back to the light beard.

[@k7fuzionz426]

Hey joey I have a question

[@davidlottigjr710]

I'm looking for what's supposed to be in this air box oval no hoses

[@dukefan187]

Love your videos Joey hopefully you could give me some advice. I got a 150 GY6 that runs okay but recently has lost power slightly and sputters off and on at top speed. I'm going to test the vacuum lines like you showed. Any other advice would be great. Thanks again

[@HANSONMEDIAUK]

I know it was 3yrs ago but did this fix your problem as i have the exact same issue. Thanks.

[@PrestonMiddle]

Gas

[@servantoftheservant5022]

I have a zapp gy6 max speed 60km help

[@atvsinacadiana]

That plastic piece is called an "intake manifold gasket".

[@jayman826]

Hello when trying to start my bike it tries to turn over but no go and also there's no fuel flowing to the carb

[@edgarslacis7842]

You need to determine whether fuel is not getting to your carb ir fuel is not getting into engine, to determine that you need to remove fuel filter from both ends, if fuel is not flowing, clean your gas tank entirely, if you have flow of fuel, check your carburetor, maybe clean it

[@skanderkaddour2511]

can run without intake spacer ?! thank you

[@nickkaarslev290]

I've run into a problem, my 139qmb just wont idle when its cold, it idle perfectly when slightly warm, and runs perfectly, ive tested with 2 different idle jets and auto chokes, no gain.

[@angryangel5849]

hi.When IM put the vacuum lines and the engine stops when remove the engine works well what's the problem? please MY 150cc

[@JoeysGarage]

What are the vacuum lines hooked up too? I.E. the emissions crap? Is so, it could be clogged.

[@abudhabi4972]

also i can see burst of flames coming from my manifold to the vaccum line thats connected to the manifold. why? do i have a leak? new guy here

[@georgiemelendez6154]

Hey joey I wanted to see if i could ask for your opinion. I got a 2017 tao tao chinese ATM50 A-1 scooter I been having my scooter back firing, Plus when I come out of a stop sign and hit the gas it sounds really lazy and it wouldn't go. Any tips you can give me I would really b thank full. Thank You

[@JoeysGarage]

Sounds like it may be running too rich. Have you tweaked the carb any? And have you removed the emissions garbage?

[@georgiemelendez6154]

No i only got a big bore kit installed in it, When i got it this past febuarry. It was runing great Till like 3 to 4 weeks ago Then it did that lazy + back firing wile i was driving it. So i kept going then it when away a little bit. Now i got it put away cause i was worry of damaging something bad. So should I try what u said i never done any mechanical work to bikes so Thank you for everything joey.

[@rockstargamer7936]

@@georgiemelendez6154 did you check the valves or ever chang the oil or gear oil or gas filter i mean how old is the things do you start it up once a day and ride it often?

[@fashionstreet1]

Hey Joey your videos are awesome and tutorial I did the vacuum leak test on my gy6 150cc Chinese scooter and when I spray starting fluid around where the back of the carburetor near where the air filter goes it shuts off while idling but doesn't accelerate is it the same a vacuum leak?

[@MegaOzozozoz]

Anyone know the hose size for the one attached to the manifold?

[@danilocacho1910]

john johnson K

[@Derryjones2]

I want to upgrade from 50cc to 100cc/80cc,..... who makes the best kit,and after market carb. I only want to hit 50mph,... and keep it reliable.

[@JoeysGarage]

+derry jones NYC is a very reliable brand. Keihin isn't a good carb.

[@nicholasscott1206]

"Fer me" this video was straight forward.

[@JoeysGarage]

Thanks. I tried.

[@OAKyep]

Will this keep it from starting

[@zigzag6090]

I have a Chinese 150cc moped it dies when im driving all power goes out

[@mauricesmith918]

Where is the tube running from the cylinder head to love the channel/G\

[@GY6-SCOOTERS]

Nice advice as always Joey , thank's for all you do ...🙂👍

[@mdsoto3893]

Can you make videos how to change a BRAKE LIGHT SWITCH LEFT RIGHT CHINESE SCOOTER GY6 50cc GY6 150cc Please

[@guysmalley]

Thank you solved my issue

[@trippharris1144]

great tips

[@TheHamouda]

thank you for taking time and explainjng.my scooter wont start in morning in cold weather.can you help me .I bought new battery,new spark plug.still the same. my scooter likes only hot weater.thank you in advence

[@markzimmerman7279]

Like how cold are you talking ,if it gets below 20f all I've had were hard to start

[@TheHamouda]

@@markzimmerman7279 hi it's been 4 years ago 2 years ago my scooter stolen. I have my got any more scooter now.the temperature i was talking about is less than 10c

[@rockstargamer7936]

@@TheHamouda warm it up for 10 minutes maybe 20 if its super cold you'll half to give it a lil gas dumbass.

[@rockstargamer7936]

You're a dumbass

[@paco_rider]

Are you yoshua's bardwell little brother? Dude you look identical

[@rolson6775]

Best way to find a vacuum is to use a stethoscope. Pull the end off the hose and move the hose around till you find your leak. You can pinpoint exactly were your leak is this way.

[@ericlatona4920]

Thank Joe for the video good job , By the way joy I have a gy6 150 cc get a bird chirping sounds from my intake also my scooter in manifold has only a o ring does your yours have the same I see you had a black gasket which was damage do all gy6 use those black gasket in the video yours was damage is that cork or hard plastic. I do not believe mine has that gasket you showed on your video this scooter I am working on was not running at the time it was giving to me I am working on it as we speak I have it running but I hear these tweeting bird noises which I believe is coming from my intake like the scooter in the Video?

[@markwolfe4378]

Awesome 😎

[@silveris88]

thanks for good tip :)

[@nonarrativeboxingnunn9856]

I Have Spark And Gas, But It's Still Not Starting. @Joeysgarage , Can You Point Me To A Video Of Yours That Would Help Me Find A Solution?

[@linhhunt6248]

Thank you

[@ironhead320]

Had the same thing and cracked

[@deadinside8542]

Thanks

[@tonywhalen3677]

OK thanks . I know I'll have some questions. Where do you want me to ask then at so you address them.

[@JoeysGarage]

+Tony Whalen The comment section of the videos are good. I have fallen behind on Twitter and Facebook

[@s.f.morris7331]

hey Joey. Question for you..if I removed petcock and replaced with manual shut off valve can I then plug up the air intake stems on the manifold or does that still need to suck air in?

[@s.f.morris7331]

never mind

[@dukefan187]

Nice videos bro

[@TheAdamRivas]

A demo of engine running before and after would have made this video great.

[@craigkrage2689]

Thank You for Your Little Video

[@RWaB7]

You need to tell your audience where to go to get these parts DAMIT !

[@johngibson1491]

Oh so don't use a garden hose and start the scooter spray all the electric and carburetor and last open the gas cap shove the hose in.and go to lunch. Come back and you have a nice clean scooter inside and out 👍.gotta go the big yellow bus is here pick me up. Yay crayon day my favorite is orange they taste just like a fresh orange. Bye bye .beep,beep

[@anthonytone3483]

Boi you do a whole lot of talking when walking the walk is more proven than talking the talk. Now you know

[@servantoftheservant5022]

Harihariharibol newsubscriber lets c what u got best south africa