Subscribed!

First explanation I’ve seen that completely and clearly describes what a variator is doing and how roller weight affects the rpm at which the pulley’s effective diameter changes as well as the rate at which that change takes place all else being equal. Excellent video! Subbed and liked.

For a year now, I've known how to change a belt and assemble a varitator. But I was in the dark with how it worked. I watched so many videos explaining it but your style of explaining how it works was super easy to understand. Thank you for making this video, keep going!

This is a very helpful explanation. Thank you. I just swapped out my variator and clutch and rollers for sliders without really knowing why.

Excellent! Clear and simple 👍 love all your videos and your actual real life knowledge is clear too 👌 thank you 👍

Thank you for doing this video! I’m just learning as I go and everytime I ask another rider.. they always say it’s easy but never really explain it like the way you just did! Thank you again

Hey mate, thanks for the video. I watched a few and got more confused than I was when I started. Your video was very clear, mate. Thanks a lot I think I know what to do now actually. Cheers.

I would have loved this video 3 years ago before all my trial and error 😂 Nice work guys

Amazing video helps so much in upstanding what's going on

This is how an instructional video is done - clear, to the point and you know what you’re talking about. The Americans just waffle on and on and on for ages and say very little. This is a breath of fresh air. I just subscribed . Thank you for doing this so well

Really good video with clear and simple epxplanation. Thanks.

Thank you I really appreciate it love your videos ! Great professional content right to the point no messing around and goofing around and all that BS ! I gave up on scooter swap shop videos, too much f****** around and not enough valuable content !

Great video. Very well explained. Thanks

Best video on this subject. Forget the others.

Well explained!👍

Knowledge is power! 🙏🏻 thank you

Fantastic explanation! Looking forward to ordering some upgrades!

Thank you first time i actually understood how these worked.

Very informative. Just found you and I hope you have more info on scooter tuning.

Thank you for this. Great explanation!

Thanks ! Really good explanation.

Very informative, cheers Dave.

Great video mate, really love the explanations. Any tips on tuning the springs?

thanks bought a DLH variator for my nouvo elegance 135..couldnt figure out why it came with 3 10g 3 11g 3 12g plus three red springs.being 200lbs the 10 and 11s work great..thanks

Good basic information Thanks a lot

Thank you for the insight.

Subscribed! Well explained. Thank you. Got the info I needed. Can I run just 3 rollers?

Excellent. Thanks

Thanks I've always staggered the weights some one told me about the total amount off grams is key buy I forgot exactly the explanation for that. Thanks 82 mini stroker Hawaii 🤙🤙 aloha

Very good explanation on how a varaitor works with different weight rollers. My question is, during your explanation I noticed that you are only using the round type of rollers. Can you please explain what the difference is between the Dr. Pulley brand roller weights. That have more of a cam lobe instead of just being round round. Like the ones you are using in this video?

great info

Just tuned in and subscribed thanks for the very good, informative video. I've got a Sym Jolie scooter where would you recommend I buy my bots from from Australia I want to support the local suppliers so any advice would be greatly appreciated. Thanks again for the vids

First 2 mins on your channel and I already know we are gonna be friends. Lol

Had to watch an AU video to get a good explanation while sitting in EU. How is that? Thanks for the clear explanation!

You have such great content on you chanel, I shreaded my CVT belt on my gy6 50cc 4 stroke, and replaced it, the belt had no size on it so I think it small case so I went with 669x18x30,,,put everything back together and it wont start,,,replaced battey, coil, plug ,CDI, nothing,,,,could a wrong size belt prevent it from starting? Could I take the belt off and try to start without it on, so frustrating at this point, any advice would be awsome,, TY again!

Great video, thank you…I have a Suzuki address110 bike that has reached 120 km, would you advise me to put heavier rollers ?

hello, I really like how knowledgeable you are with the aprilia sr50. my year is 1999 and 2000 carb model. I'm interested in making it rear facing carb but not sure of the modifications I will or might need to do. I had one before but I had stage 6 rear intake with 28mm pkw carburetor. I'm not sure what mod if there was one to make this setup work. can you help me figure out this? I want to duplicate what I had. just not sure of the frame modification. do I need to do this?

Hi great video. I used NCY 12g rollers and managed to get my Honda Navi up to 52mph. But at the top end speed I’m getting a vibration, any thoughts on why? I did notice the 12g rollers have different looking sides on them. Do you know if they all have to go in the same direction? Rollers did not come with any directions and can’t seem to find any information or videos on it. I’m thinking I’ve reached peak performance with the 12g rollers but not sure. Any thoughts or suggestions Thank you

Hi guy, i have some question: -what is your recommend clutch shoe material for stop-and-go city riding!? -stock clutch shoe (soft) and carbon-kevlar shoe(hard), which one hit the bell rapidly, and give the best friction force!? -if i choose the more friction shoe, i must choose lighter roller weight to avoid the belt from slip, isn't it!? -for normal riding everyday, we must take off at high/full throttle or just slightly throttle!? Thank you 👍

Great video! looking forward to learn more with you. new sub also

I really appreciate your explanation on the CVT. Can I please ask some advice? Sorry in advance for the long message. What if I have a Chinese GY6 50cc engine with 80cc bbk and aftermarket exhaust with Keihin carburetor and higher gear ratio to get better top end. I haven't done a thing with the CVT except for variator which wasn't much. I think I may even be running my stock rollers again. I know that was stupid not to do anything until now but should I use the 1500 or 2000 spring and what size sliders or rollers should I be running? Also does a performance clutch with larger pads make any performance difference compared to a new stock clutch or should I just concentrate on the springs and weights? I am experiencing a big from like 15-30 mph and it seems like I should be getting a better top end speed. I'm currently getting about 42 flat and 50-52 downhill lol. Can you please offer me some advice? I would truly appreciate your help brother!

You can remove the metal spacer in the roller and drill each spacer out to the exact weight you need.

Thanks for that

Does it matter how the rollers go in like it what direction? I noticed one side is showing metal, the other plastic, should it be facing a certain way? TY for your videos

Hi ! Impressive video. I have a question . I have a sym hd 300 , polini variator 14g rollers and the blue hard contra, also free dna air filter . The manual says that at 8000rpm max h.power. the rpm has increased from before , and 0-100 very fast but then drop , and the max speed comes vary vary latter and the rpm gies to 8100-8200? What mod would you suggest in order to reduce the drop at higher speeds? And do you suggest a aftermarket muffer?

Great video, explained really well but I could do with some help with my sons 50 Aerox. It pulls off really slow until it gets to 21mph then boom! It picks up & goes really well. However sometimes it pull off as it should, like its actually in 1st with a good pull but hardly ever. Its like its in 2nd whilst trying to pull off & it's the only way I can explain it. Malossi variator installed, changed clutch spring to the white one, changed to Malossi belt, changed to the weights that came with the kit & Malossi air filter installed. All this was to get better top end which as worked (50) but bottom end result is poor! He's only just passed his CBT and I think its dangerous with him trying to pull off like this and trying to get up hills etc. Please help if you can as I want it to be safe. PcG

hey mate what roller weight would you recommend for a vespa s125 model, mine came with 19gx6 stock rollers totalling 114g, but ive currently got 12gx6 rollers installed with a harder than stock contra, this gave me +10km for top speed and higher acceleration. But i think i still havent reached my variators full potential, what roller weight would you recommend? thankss

Now this video is old, but can you explain shimme vario. How far up on the vario will you go? Thanks for your videos

I have honda ruckus with NYC variator/ drive face and right now 6g Dr.pulley slider. I can't get the belt to get top of the variator. I've also tried 5.5g and 5g. What would you recommend to get the belt to the top of the variator?

I’ve got a 2021 znen 50cc. I could be running flat at 35-40mph and hit a hill and drop instantly to 10mph. I weigh under 200lbs. What would be the best set up for this transmission-qmb139 engine?? Any suggestions would be appreciated. Thanks guys.

Hi at the moment I've just got a stock Typhoon which is deristricted. My daily travel has a lot of hills involved and was woundering if getting lighter rollers could help with that?

My new Yamaha NMax 155 scooter vibrates annoyingly at 10 KPH when accelerating. Can you tell me if changing the roller weights will fix it, and if I will need heavier or lighter rollers? If it matters, I’m riding a bike that may be made for the Philippines and lighter people, and I’m heavier than the average Filipino.

Hi Scooter Street, I am Marc with 70 kilograms of bodyweight, I just want to have an advices from you with my Yamaha 50cc scooter set-up upgraded into 47mm Block and Re-chambered Cylinder Head, 70-90 V8 exhaust Pipe, 24mm Carb, Kitaco Racing CDI, 13:34 Secondary Gear, Racing Coil, CT manifold with .35mm Polini Petals, 1000RPM Center Spring and 1000RPM Clutch Spring, Cheap Racing driveface and Pulley set, stock Clutch Lining and Bell, my question is what roller weights should i try to reach the right acceleration and Top/High?

Great tutorial. I have changed mine to molassi Multivar variator. The rollers are 8 gr. Feel the rpm is high before the bike move. Should I be looking into the clutch springs

Hi Scooter street! I recently bought a china 2stroke scooter. It had 4g rollers when i got it, they were worn, with flat spots. I replaced them with 6g rollers, it had poor acceleration and top speed then. Now i put in 5g rollers, it seems to have good performance now, but im afraid it is reving too high at high speed. It has leovince exaust on it and stock 50cc cylinder. Can scooters get damaged from reving too high? I dont know how much rpm is normal, no experience with scooters

Hi, I have taken off many variatiors, Im tryn to get the variator off of my prescott 50i gy6 and the nut will not come off, I tried my usual torque wrench that always works and my buddy came by with large set of socket wrench and he couldnt do it, have you had a situation where you cant get the variator off and what did you do? Id hate to not be able to upgrade this scooter TY again!!!

Hello, I just upgrade my artistic spec jog from 50cc to a 70cc kit. Wich set weight of rollers do you recommend me?. I have on the stock exhaust, I noticed to scooter is a little sluggish to get up and go. Thank you

What makes the more expensive "high performance" variator kits any different than the standard kits you can buy ?

I have a 22 Honda Air Blade 150 . It came with 16 gram flyballs (rollers) I put in 20 gram , then I removed the air baffle and tube in the filter casing , took it to shop remapped the ECU and oh boy what a differance .Thiking about putting in a little heavier variator spring . It's not for racing but just cruieing and towing a small cargo trailer .

I subbed!What rollers should i get for a better start,i wanna tune my scooter for wheelies

VERY CLEAR EXPLANATION. THANKS FOR SHARING.🇺🇲✌️👍

Hi, i just broke 1 of the 18 blades that the variator fan has. Does it unbalance the variator or can have any issue? Thanks in advance

what is the excellent combination of weight of of flyball if you want more torque because we leave on a mountanious area. i have only 110cc of scooter. thank you

Hi do you need a longer drive belt used with a larger d.I.a. vari to allow for full shift and top speed. On a gy6 4t. 87mm.stock vari

Hello, I have a problem, I have a Peugeot Speedfight 1 100cc that recently seized up/heat seized. It was not tuned. I then changed the cylinder, piston etc. It now starts up right away, but after a while it dies all of a sudden (as if you had turned off the key) and then I can start it right up again, this usually happens when I go over 60 km/h or uphill. When I changed the cylinder etc, I also cleaned everything thoroughly, such as the carburettor, intake, new air filter, new fuel filter (there was no fuel filter before) new spark plug. I also removed the oil pump and put a metalplate with a gasket over the hole instead, I now mix the oil directly into the gasoline. Some other info that might be important. - When I drive over 60 km/h, it starts to make a noise from the variator (CVT), it´s sounds quite a lot. - When it died, I tried to start it again while it was rolling and then it started right away, but it made a noise from the variator, like something "let go" that had been seized up, like a rubber sound, maybe from the belt. - The variator belt touches the variator cover on the inside and has grinded a cut in the metal. - In the variator, where the weights are, the belt does not go down to the bottom of the wheel. - The clutch bell had turned blue from the heat. - The place where the connecting rod attaches to the crankshaft had turned blue from heat. - There was no fuel filter on it before. But i now saw there is an internal fuel filter in the gastank, can it affect the vacuum if you now have 2 fuel filters. Please help me. Regards Andree.

You showed that the belt wasn't going all the way to the edge of the pulley,saying that the extra travel would have been worth a few extra km/h. But you didn't tell us what to do to get the belt to travel the full diameter of the pulley. Could you fill that bit in,thanks.

Hello, i have a aprilia sr 50 2020 E4 with piaggio engine. The standard rollers on it are 7,2 or 7,5. I changed the rollers to 6,1 but it accelerates very slowly, like the engine revs a bit but i can reach max 45 50 km/ h and it takes a little bit more time than it took when i had the standard rollers

I put on a 70kit and pipe and changed the carb (12,5 original) to 82 jet, i have 4,6g and it goes great on idle but if you go for full throttle it revs up to 4k and the wheel doesnt even turn around, please help

hi, i have yamaha jog r with 70cc malossi kit. clutch spring malossi and 17.5 carb and performance exhaust but its broken and my problem is when i start riding the scooter takes too much rpm to move but when it starts moving its fine is it the roller or the broken exhaust? (sorry for bad english)

Do you know what kit will fit a 2022 Honda Navi 100cc Scooter. Thank you!!!

Very knowledgeable guy

HI MATE CAN YOU TELL ME WHAT SIZE ROLLER WEIGHTS I NEED FOR 49CC DIRECT BIKES MOPED TO GET UP HILLS AND BANKS AND PICK UP MORE SPEED THANK YOU PLEASE KEEP POSTING YOUR VIDEOS THANK YOU

Is it essential to change the springs if I use lighter rollers?

Do i need to upjet my carb on speedfight 2 after just changing variomat to malossi multivar 2000?

Should I go heavier or lighter for higher top speed if I don’t care about acceleration

Do you know why my scooter wouldn’t wanna shift in the 2nd gear, like i take off then it just revs and hits like 35 40 km/h and revs to much

I have a Wolf Blaze 2 150cc. What kind of rollers should I get to get faster take off and keep maximum speed? I’m in Florida and average speed is about 45 so I want to get to at least 50mph rather sooner. TIA. Stock scooter except carburetor

Can you put 2 light and 4 heavier in a hyper2 variatior, or only on exactly 180°

Hi \ thank you for this Great video I have Yamaha majesty 250cc Scooter can I mix 3 of 13 gm light rollers with his heavy original 3 of 18 gm or this is big difference!!? Can you advise me what is the best choice please ?

Hi, awesome video very informative, what weights/ratio of weights would be best for a Vmoto Monza 50cc 2 stroke (jp50) because I have been considering purchasing some aftermarket variators to get more speed.

I have a 2012 Piaggio Typhoon 50cc 4T. What do you recommend to upgrade the rollers, clutch, etc...in order to get faster of the line and going up hill? I want to modify these items to get more torque and speed. Do you recommend replacing the carburetor kit? How can I deactivate the restrictor?

Great video!! I have a question I run a piaggio typhoon with 70cc kit Main carb with 74 jet Malossi exhaust Malossi air filter But the problem is that when I go to a big hill it is like the spring can’t change the transmission (I have factory heavy rollers and factory soft spring from 50cc) is it better to leave the rollers and take a harder spring ? Or is it going to put to much pressure on the belt? If I change the rollers with lighter is it going to lose grip on the belt ? (Sorry for my English ,I hope I am understandable)

Having your CVT modified, can it increase top speed ?, but the engine is still stock

Is there a need to change when just derestricting?

Sorry, I still don't get what's the purpose of mixing different weights. Since the heavier weight are always going to go up the ramp faster from the centrifugal force. Also, I don't really get the part how the weight of the roller affect the ride. I get that with heavier rollers it means it will go up the ramp quicker(lower engine rpm) and with the lighter ones it takes revving up the engine more to get the rollers to the edge. When the rollers get to the edge, the belt moves outwards, effectively increasing the gear so to speak, you'd have faster wheel rpm and less torque right? Or is it the other way? That the torque is highest when the rollers are up on the ramp? Does that mean with lighter rollers you'll likely have more torque, better acceleration at lower to mid speed for instance say 20km/h -60km.and with heavier rollers youd have weaker acceleration at the same speed range?

How do you get the belt to ride higher on the pulley for higher top speed? Everything working well, reving to 7k but top speed seems artificially limited and belt isn't riding up to the edge of the pulley. Advise?

What rollers do I install for highest top speed?

I think i am a little confused...If i am right you mean that using lighter rollers we should have more torque and if we use heavier rollers we have more speed. Am i right?

Hi. Can you put more than one shim in?

I just purchased a 2019 metropolitan, how can I make this scoot to hit 45 mph and get there quickly? It's completely stock bought it with only 15 miles on the odometer. Currently it hits 37-38 mph with me weighing 205 lbs.

For 50cc injection 4t, says 7500 max rpm,what rollers would You suggest? And clutch springs 1000 or 1500 rpm?

What can i do to make the unused part with the pen park smaller??

with this do u need to change the spring?

I have just bought a 125 scooter sym which gives 12hp what i need to earn more horsepower??

Just wondering, if the scooter is restricted will lighter weights allow it to get a higher top speed or will the scooter still restrict the speed?

So I had 7g slider weights in my 80cc 139qmb taotao, I went down to 6.5g rollers because I was finding 'bite' marks at the tip of the slider weights. My guess obviously was that I had too much weight, was this right? Tldr, did my variator have weights that was too heavy?

You will not loose top speed if you use lighter rolles?

Hii can you do a setup of vespa sprint 80cc?

I have a super 50 , 50cc scooter I install mine with slider roller weights 8 gram . The acceleration was smooth but when I go about 35 or so I can feel the belt is that bad or should I change it ? I also didn't upgrade my clutch just got a new roller weights

Variater part's names Ramp plate, Rollers,