GY6 Enricher / Automatic Choke Operation & Testing 

I was scratching my head off figuring out how it works. On disassembly i found a metal coated disc sandwitched between two wires. I thought it was a piezoelectric device which would only work on certain voltage and frequency. Now i know that it was just a heating element which would melt and expand the wax inside the copper housing pushing the plunger outward.

i disconnected this 6 years ago. i've been driving with choke on this whole time. no wonder i have poor mileage.

7.5 ohms on mine. Also same on another vid. Mine has a ballast resistor. Yours may not Manufacturer may use higher ohms instead of resister to limit current. Like you stated, there are differences between applications. I would say one is good down to maybe 4 ohms. Check to see if there is movement in a couple mniutes when voltage we is applied

When my scooter warms up after a few minutes of riding it's power output seems to falter. Barring all other possibilities Would this be an indication of a faulty choke?

Is it safe to apply DC voltage to this since it is powered by the yellow wire, directly from the stator AC output? The wiring diagrams also shows that it has a resistor/diode in the ground side of the wiring from the enrichment valve. Thanks for the video.

So if one is having trouble starting their engine on a cold day, removing the whole unit will help the starting since the plunger inside may be stuck in the extended position. Removing the unit will act as though the plunger is retracted.

Hi! I have energy in both wires on the conector thats come from stator, its this ok? Or i just need one wire with volt and one wire with ground? Thank you

Clear! essential ! best one tutorial, compliments! :)

I love your engine examples. 150 cc, Model IP57QMJ. I have a Xinba in a 2018 IceBear Cyclone trike. Doesn't burn a drop of oil, and even though I have to warm the One Cylinder up to stay running, the 80 miles to the gallon and at 3/4 throttle it's going a smooth 50+, with 11 or 12 grams rollers, gets off fast, then ease it along up to fifty.

Man what a great video. Thanks a lot 👍😀

Many years ago, Frigidaire refrigerators that had an ice dispenser in the freezer door had a device like this that opened the chute door so ice could pass out into a cup. Frigidaire called the device a "hot wax motor". - - In that application it was powered by 120 volts AC here in America. They were reasonably dependable. - - Thanks for your videos.

Hi! I have a 50cc CPI Oliver city.... I just replaced my carburetor with a new one ... it starts and runs fine... idles fine... but when I drive it for about 2 miles going 40 mph, I lose power then it dies. I pull to the side of the road and starts back up again. Drive it again for about 20 feet then loses power then dies again.. seems to be losing power and die when it gets hot? Any ideas?

On a gy6 150cc 4stroke atv where is the auto choke supposed to pull power from. One wire goes to ground but where does the 2nd wire go?

Why not show how to adjust it for duration ??... (screw in to make choke hi idle longer and screw out to make it hi idle shorter in time it's applied)

My scooter only starts when it is cold. And after it warms up and dies I struggle to start it and i can smell lot of gas. Also when i get it to start it it idles get worse and eventually stalls. could it be the enricher giving to mucch fuel and not closing the gap

If I stop this starter..there is any problem for my scooter?? I put rubber to the starter to stop it and the scooter become better in everything..sound..fuel consumption

Great Video. Good explanation. Made it very simple. Thanks.

Great video with important info. Thanks

Please help! So, I stripped the enricher wires and put my volt meter on there. I started the scoot right up and the voltage was around .5 to .7 then after almost a minute it hit 1.2 volts. Once it warmed up the voltage dropped to .1 and then the bike died, as she always does. Should I be reading around 12 volts during this operational test? I can manually route 12 volts to it if I need to. My scoot is unusable because of whatever the issue is and I now believe this is where the problem lies. Thank you in advance. 🙂

Im having an issue...so mine starts right up... idles low and dirs as soon as u give it an type of throttle...carb is clean and fuel bowl is filled. If i detach vacumm line idle goes way up... any ideas people ?

I always wondered how that worked. I had to fit a new carb to my quad and from watching your video I could see that the old carb choke had never worked. Thanks for such a great and clear explanation of the system.

Hi, EXCELLENT Vid..... Was just wondering how long does yours take to retract to the enriched position after the power has been cut off, eg the 19mm position?. Thanks Rick

My scooter won’t start first thing in the morning. If I wait a little later in the day it starts right up and runs fine. I live in Florida

guessin choke works like car thermostat , expanding wax when hot in a small metal box . wonder if it can get stuck in open position so starting will not work and better to loosen choke screws and lift it out a bit to see if starts.

Thank you, there is little information about this. Now i know mine is stucked

Is it normal for my auto choke to heat up even though the engine is in operating temp for a long time already?

What operates the automatic choke? Where does the power come from?

are these things chasis ground?

Having a problem with cold idle on my 49cc scooter. When it first fires up it runs ok for a few seconds then the idle goes up and down and usually stalls. If I touch the throttle at all, it stalls out and is difficult to start again. Could this be a choke problem or a mixture problem? I just bought the scooter in May of 2014. Once it's warmed up it runs fine.

My wires were cut on this I have no idea where wires connect there is a yellow and a green and black wire

I got a brand new carburetor that came with it and it's not working

Hello, I have a 150cc velocity, while warming up it goes up to 4000 rpm then goes down then up again. While driving and stopping the Rpms go down to 2 then back up to 4 and while riding the scooter feels like the engine choking out or the plug fouling out then it 0j00umps. Need help with this. Thank you

Very good video.. actually a great video.

Nice explanation! I always wondered why my scooter ran a bit "livelier" and idled a bit higher at first. Thanks.

Hey... thanks for the videos, i have hard time to start my scooter on the morning. it take me about 10 to 15 min to get it start. (yes, it is only on the morning, afternoon is no problem to start the engine). any idea what is cause it?

Is this the same enricher that is used on the 2-stroke Yamaha BWS/Zuma? Thank you

I had a resistance measurement of 0.3 Ohms, but it still seemed to work. The pulger extended as it should

how should it be diven with on or off

how should it be diven with on or off

Think you solved my 3 day dilemma of adjusting and cleaning the carburetor. Thank you.

where should i tap the wires, should it be dc or ac voltage, any specific voltage?

Very Informative video! Very nicely done with good narration and details. Since rest of your videos are equally good I would recommend, if its possible ofc, uploading them in real HD quality. Not that they are bad, far from it, I would just enjoy them more! Keep up the good work mate!

Is it s good a idea to cut the end needle so i dont waste time waiting for the auto choke to finish?

Great video. Nice clear informative pace.

Great insightful video thank you. Would anyone know on my GY based engine how to adjust the choke for a richer mix to get my scooter started on a cold British winter day please 🙏?, cheers

Much needed info. Thanx

sir im from Philippines i also have a gy6 engine and dtype carburator as well but in the morning i need to add a lil bit of throttle to it for it to start and warm up what you think is the problem??

thanx,does it get power thru the temp unit..my yamaha nouvo elegance has this problem.i did replace carb with new. must be broken wire somewhere

i'm still learning, what does the enricher do?

What if it revs up but only touching the 2 bolts with metal will turn it over? And when it starts and runs its a little choppy for the first few minutes. Also, it only does this if it sits for at least a few hours. New spark plug didnt change anything. Any help would be greatly appreciated.

great job.

In my situation my electronic choke is closed and will not return to open for the next start.l have to start it and keep revs up until warm and then it runs perfect.

Could I use an electronic choke carb on a 4 speed 4 stroke pitty and would it really improve performance?

My scooter has a spark but when I turn it on it does not hold at the minimum, that is to say it goes off at the minimum and then I can not turn it on until the other day ,,,, I think it is the carburetor thickly the electric choke also called (throttle). What do you say friend?

excellent explanation thanks.

Would you please tell how to check if the harness to the bi starter connection is giving voltage to connection , even if that is the case..How is this cone ?

Would have been great if you did it in 3 minutes instead of all the chat.

Hello, how are you? I just wonder what if we do not connect the power to the enricher. Thank you.

Hey... thanks for the videos. .. i got a Derbi Gp1 03 for our motor pacing on our rode bike ...the other day the motor stop working.. I check the ignition and is working, check for the spark the spark plug to the head, and is good spark. then i move to the carb to see is gas was coming down and flow of gas was present. after all that I took the elect. choke but I didn't check the travel of the shaft ... what other cause can be creating the non start ...also I do have good compression

so every time you start the bike the choke comes till that slow valve opens?

Thank you! Very helpfull👍

hello there...my engine is Air cooled, and i want to fit an water cooled carb with this kind of choke...if it is possible tell me how to do the conectionn of choke...looking forward...tnx

How much the voltage chock coil supply.?

Do enricher getting hot

Hi. Do you ohm it out. Hot or cold ? Thank you. Bill

Hi.. There is not a wire diagram of it (Connections from it to the Stator)?

Can you check this choke by turning on the ignition and watching it

No mention of how to connect, is the green or the yellow live?

When is extended reduces de amount of air or fuel to the engine?

A: thanks for the quick response. 2: Subscribed C: thumbed up..

Can these Carburetor chokes go bad in time

Hi, I am from Philippines. How to adjust an Automatic Choke or Enricher in a GY6 Carburetor? Mine has this issue: The Auto Choke turns off prematurely or in an early stage of which the engine is not that hot yet for stable idling, thus engine turns off. I tried cleaning the GY6 Carburetor hoping it was just caused by dirty system but same result, the Pin inside the Automatic Choke/Enricher extends prematurely/in an early stage even if the engine is not that hot yet resulting to stall. It retracts right away in about less than a minute like around 20 seconds. It my Automatic Choke or Enricher damaged? This is exactly how the Carb with the Auto Choke or Enricher looks like: i259.photobucket.com/albums/hh302/turbostang331/150carb1.jpg Please guys, I need your help...

Hey, I see y brought a MCI Alien sport 50cc moped, and the electruc choke works, however the rubber that the needle on the electruc choke goes in to is perished and broken andnim need to replace it, but I don't know what this part is called. If you know please let me know, thanks

Great video! ❤️

Good

Hi thank you for your excellent video I have a Piaggio Zip 50 2T when I give a full acceleration the speed cut down I remove the carburettor and cleaning and still the same can you please help me if you can I see on the goggle same one said the disconnect the automatic choke I don’t try because I don’t know if can damage my engine thank you very much

they are suck junk brand new bike less then 1k miles I have put on it last summer the summber I got it and I have had to replace the damn choke 4 times now.

Hi man, with my 50cc scooter when i drive it cold in the morning like 8deg weather, it usually bogs when i drive it afternletyingnit idle for like 2mins bit it will be fine afterwards like no boggings when warm and very responsive. Is there a possibility that the auto choke is causing my carb to flood during that period that’s why it bogs like there’s too much gas from the choke?thanks

I installed a new carburetor on my gy6 150 engine. When I first start the moto and drive it the bike feels like it's missing and surging. After the engine is warmed up it runs fine. I live in Acapulco Mexico so the weather is always warm so it's not a real cold issue. Is my problem in the auto choke?

I have a gy6 250cc automatic brand new from factory. wont go over 55 max and only gets up to 5000 rpm out of 12. Any ideas?

So what needs replaced if the resistance is only 7 ohms when we are testing the auto choke? We're troubleshooting a Helix 150cc go kart that starts up fine, runs great for a bit, and then starts bogging down/won't go after it gets hot.

Excellent tutorial!

I read somewhere about replacing the carb it needs cleaned first. something about a wax that there shipped with. any ideas what I should do. ? I have a new carb from Redcat.

nice video, thx alot for that, but dose it matter where + and - are put at, and can i use a power supply with 13,7 volt's ???

if the automatic choke doesn't work properly the scooter doesn't get fuel?

Hope you are answering questions. I have a resistor a little white box that ties in with this auto inricher was wondering how or were it wires in?

How high should the rpms be when warming up? My bike is a 150cc tao tao. Lately my rpms are shooting up to 3500-3900 and the wheel spinning. It comes back down to 1800-2000rpm after it warms up but it stays high for about a minute. The first year it was running smooth and only shooting up to upper 2000s when warming up. Thanks in advance for any advice.

I have a gy6 150 after it warms up it won't idle without me applying gas do you no what it might be

Where does the wire on the scooter it's self go to? I have no power there and have been trying to trace down with no luck

Hi,i have question,about how the the choke get power...I mean i tested on the mmeter show it goes up and down,each time i throttle the gas,theres no set volt to it..I thought it would be a straight 12 volt to it

I’m having a really hard time getting mine off and I’m scared to break it

Do i need it to start my shitbox

I HAVE A LITTLE HARD STARTING THATS BEEN GETTING WORSE. IF I TTHANKSCOVER INTAKE WITH PALM, IT WILL START.

I seen in 1 of your replys.. About a cracked intake manifold.. Mine has a small pice broke on the edge screws go in gasket covers looks like it still seals. Didnt think it would be a issue..

My TaoTao 50cc scooter has been really hard to start after 1 yr ownership. I live in FL in a warm environement. When cranking cold, it fires and putts once or twice before dying, I time having to roll it down the driveway, tickling the throttle until it goes due to the engaging of the autobelt/clutch as it catches.. After it tries to die as I give it gas into a corner, it'll rev up and after 3-4 minutes of continuous running, no issues starting or idling anymore. I pulled the automatic enricher out and measured like you did. It's 3/4" cold.. When I turn on the key, it does not move so I assume that the scooter has to be started before the pin will expand down? I use nothing but 100% gas (no 10% ethanol mix). I don't think the automatic enricher is bad. Maybe a carb jet or air/fuel adjustment at cold start? What are your thoughts? Thanks!

WORKS FINE NOW. NEVER FOUND EXACT PROBLEM.

Heres 1.. My scooter trike. On a cold start it HAS to be hand choked for it to start.. With my hand over airbox hose it starts right up fine. After its been warmed up it starts just fine. The carb is brand new 20mm carburetor. Stock jets 49.5cc trike with a 50mm bbk stock airbox

its not valves. 2 and 3 thousands. i just set. its ok. ill fix

electronicsNmore I watched you're video about the GY6 enricher, but can you tell me which of the wires (Green or Yellow) is the + and -, Thanks Greetings Frans

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