EASY 50cc GY6 SCOOTER MODS to change performance

today we show you some EASY 50cc GY6 mods that change performance.
These mods are all very simple to do and can be done with basic tools. We go over a better carburetor, a performance variator and changing variator weights all to change the performance of your scooter. unfortunately the weights we used in todays video were too light and cause our scooter to go much slower. But that's what it takes to learn.

MERCH

DISCLAMER I am an Amazon affiliate and may make commissions on the products linked here.

PART LINKS
CARB (this is a stock carb!)

20mm MEDIUM PERFORMANCE CARB! (for BBK, still works with stock setup)

variator kit

PERFORMANCE VARIATOR KIT (THE BEST YOU CAN GET)

Variator weights (5s were too light... get7, 8 or 9 grams)

50cc GY6 belt

BEST PERFORMANCE CARB !!! ( YOU WILL NEED THE THROTTLE CABLE AND INTAKE MANIFOLD, AND AIR FILTER LISTED BELOW TO FIT THIS CARB)

THROTTLE CABLE FOR PERFORMANCE CARB

INTAKE MANIFOLD FOR PERFORMANCE CARB

AIR FILTER FOR PERFORMANCE CARB

GEAR WE USE

MAIN CAMERA
SECOND CAMERA
ACTION CAMERA
ACTION CAMERA MOUNT
CAMERA MIC
CAMERA BAG
DRONE

DISCLAMER I am an Amazon affiliate and may make commissions on the products linked here.

MERCH

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[suaijmzajdhg]

Hi, just a little tip, if u want to get more of stock gy6, get a performance cdi, there is a lot of cheap ones that work, i had mine upgraded and it increased my top speed. Basically the performance cdi can make your gy6 rev higher. Approximately 10% higher than normal

[SegaDisneyUniverse]

Man, y'all make tuning these scooters look so easy. But as soon as I even much as touch my kick start assembly, everything starts breaking!😆

[gerryburon]

Performance CDIs are good for short burst drives, like drag racing.

They are not advisable for long trips where you tend to do full-throttle for longer period of times, because Performance CDIs have no limiter, you can burn it out driving at high rpm for long period of times

[jlaatika]

Hey guys! Greetings from Finland! I just found your channel when I was looking for 50cc scooter tuning videos. I have a couple of old Chinese scooter scraps and my goal is to build one ridable 🛵. The fun and laughter is well reflected in your videos. Keep the playful attitude and professional mechanics! 😁👍

[scottbrown]

I would be interested to see some discussion on an improved final drive ratio gearset.
Stock 49 CD is not so great in an area that has many hills. It really kinda sucks in stock configuration!

[bevis]

my 50 will easily do 70mph with the stock 49cc top end. A good carb, exhaust and the lightest rollers you can find and a taller gear set for he final drive is all you need. My 2014 Tao Tao 50 starts to Death wobble rite at between 76-78mph going down hill. It will go faster but I don't have the nuts to try it.
I forget where i got my gear set but it was off of ebay. It increased the top end by atleast 12mph but it did slow down acceleration a bit especially on hills. They were listed as a Highway final drive gear set for a 139QMB. Shipped directly from China.

[natekarr]

New to the 49s picked up an italica and noticed it bogged down very hard when full throttle at any rpm, took the top off and noticed it had one of them cone air filters. So I'm assuming the PO installed the upgraded carb. Cool but why did it bog down? Well being the mechanic the past few years I know a little something about vacuum And how it's important, as I looked over the stock airbox, it has a ton of vacuum hoses coming off of it. Well I decided to take that air filter off and hook up the airbox. It was like night and day. Instead of taking 2 miles to get to 30mph it took 200 ft. So incase anyone was having this issue.... thanks for coming to my Ted talk.

[robertclucas]

17x49 gear set. The lighter 4 gram sliding weights will help keep the rpm’s up high. The longer gearing does not affect acceleration. You will have a longer range of speed for the variable transmission to work through. This will help combat the loss of top speed from using a lighter weight slider.

[androidken]

Very easy but you need an impact to take the variator off or a special tool to lock it.

[steve]

I appreciate all it Europe point of views in your knowledge you still got a lot to learn Steve from Annapolis Maryland keep up the good work I've been doing it for quite a few years and I just was curious and watching your show

[BigEpinstriping]

I use rollers rather than sliders. if you run heavier rollers to get more top speed, you can put stiffer clutch springs so you can build some more revs before the clutch grabs. that will give better take-off. Light rollers work well, but may not have enough mass to hit top speed. an NCY secondary slider pulley may help too, I installed one, works great.

[edwinmendija]

Good engine to mess with and learn how to improving performance. Been doing just that for over 10 years now and have taken a lot of what I've learned and stepped up to modifying a 150 engine. 7gm variator weights are generally what comes installed on gy6 50cc engines.

[jessicarowley]

I have a 100cc big bore kit race cam bigger valves performance clutch 6.5g rollers performance exhaust aftermarket carb forget jet sz racing cdi coil aftermarket cooling cover and I’m getting 55mph on flat ground close to 60 down hills and can do 30 -35 up hill depending how steep it is only other thing to do now is upgrade to a 150 and build it till then I’m happy with it

[rubenhoekstra]

I also have a 50cc gy6 and i had 7 gram rollers in it and deleted the vario ring. Stock cdi only cvt Mods. It ran around 70kmh which i think is around 40-50 mph. 4 gram rollers are way to light so try using 6.5-7 gram

[Daguratli]

Literally the video I needed thank you

[Robert-fspb]

If you change the carb.change the air filter and the exhaust pipe or get an expansion chamber if it's a 2 stroke.

[stevestone]

I'm fixing to experiment with some Briggs & Stratton piston and rings and a bore kit myself

[steve]

The matter is 50cc or 150cc find out what the factory gram roller weight is and put three of them in there and three of the real light ones in there do a combination mix and you will get some RPM and still have top speed

[gerryburon]

With the 24mm D-type Carb, replace also the Cylinder Block with 57.4mm

24mm Carb + 57mm Block = Fun Scooter

[JTMOTO]

Also you can use a flat file or a sander and make the area the belt clutch surface meets more of a flat taper and polished, secound you can widen the area the rollers compress at the max to allow the primary to grab closer together at full throttle