This was the video I needed to see. Bought a jet kit from you thanks for the 🍬. Soon looking for the springs and rollers but after pipe.

Super good videos & descriptions even noobs can understand! Keep it up! 🤙🏽

Thank you, love your vids! Solid content 🤙🤙🤙

Best explanation video around!

great explanation!! your the only dude helped me.undetstand.this shitt

I've had 3 vento r4 scoots and got a lithium not long ago and it has the cheap pipe that's got the pinkish can on it and no name and what you described is exactly what doing. It's like taking off in 3rd gear in a car then it gets going after about 10mph. All my other ventos were peppy all the way up to over 40mph. Ive got a extra motor off a beamer and gonna put the stock muffler back on the vento for now till I get build up cash.

Great video thanks for all the help will be contacting you

Hello again sir, what parts do you recomend out of the box, certainly power increse, faster take of, cvt wise on a MBK dead stock, on the cvt clucth and springs, troque spring and roller weights?

Very well explained!👍

Great Video 🤘🏽

i live in hawaii have a af18 but the acceleration or idle drops late an if i was to wheelie theres no stall an its all chasing would you happen to know what part i could tune to fix that

I have the hi speed polini variator and the polini speed cutch but I don't have the big bore kit installed yet which I will do at some point. Which clutch springs should I use with the 4.7 variator rollers? Right now I put the yellow ones in but I do have the green ones and the unpainted ones. I'm looking for advice which springs would be best. Thnks

Hey Brandon, 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? 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!

Hi, i have a 50cc yamaha aerox r which when i bought it, it came with a stage 6 contra on and stage 6 5g rollers but when i take off, it revvs really high for a few seconds with somewhat little power before taking off properly. Any ideas what this could be?

Hi :) I have areox 50cc stock engine, stock carb. Yasuni Z muffler. Polini variator with 5.6g rollers and polini clutch with yealow small springs and blue 22kg main spring. Its not going till 25km/h. After 25km/h it is very good accelarating and going 80km/h top spees. I looked at variator, it seems going up to fast at low rpm. May it be that rollers to heavy?

Grwat video this the same concept for 4 stroke . Ive got a yanaha xmax 300. Im very bew to alll of this tuning world . But im just a bit curious as to how i can get a bit more out of my xmas .I've watched so many conteadicting vidoes about variator kits and roller weights . My bike is fully stock what would be your first mode for a bit more acceleration without sacrificing tooo much top end . Variator kit ? Rollers ? Exhaust ? Combination ?

Good evening! Just recently added all new 18 inch rollers, kevlar belt, 5 clutch shoe pad, clutch bell and contra spring all by malossi about 1 month ago on 2008 suzuki burgman 400. I changed the final gear oil with oil filter, changed the air filter and added new ngk spark plug. Finally added gasket sealant to where the header and muffler pipe connects. Now I am to get the bike up to 6000 rpms and clutch engages at 40-45 mph from start without any bogged down effects. What else do you recommend that I do and am I on the right track to being very quick off the line? Thanks in advance!

So here's a question. I have a Kymco 50cc quad. I am planning on installing a 60cc big bore kit. The kit description states that the kit will add low end torque, not any more over rev than stock. Do I install a torque contra and heavier variation weights??? this will keep everything working in that lower rm range correct? Thanks, and great video

Hey i got a NRG Piaggio 50cc stock engine with Gianelli reverse pipe.I put yellow clutch springs and 4.2 rollers.Bike is not moving till 7000 rpm then when it grabs it goes like crazy.I cannot drive it in the city like that please help.

what are the best rpm spring sets? and rollers?

Hello. I have stock yamaha aerox and i changed my stock exhaust to sport exhaust, but scooter drives worster. If i change my variator to sport variator, will scooter drive better with sport exhaust? Sorry fo my bad english skills😃

I got bbk 80cc from rolling wrench an broke top piston an bando high tension coil an nataku adjustable cdi an blacktop cvk for a 50 gen v maddog an bando belt 788 but a bit wider an nyc 9g roolets an nyc black spring an red little springs an nyc clutch an belll. How should my maddog be running?

My scooter 70cc 2stroke pulls hard af in low hear, but when it goes into 2nd it doesnt pull very good, also uphill it stays in high gear untill i get to like 10mph, i have stiffest contra spring and 4.5g rollers, new belt, and a new clutch, with stiff springs....what should i do??

So I have a 50cc ruckus close and I have a mikuni fuel pump adjustable carb I'm doing a custom fmf exhaust ncy cdi I have a naraku clutch kit that came with the little springs red which I believe say 2k and I have a 2k contra spring is that a bad setup with 6.5 gram rollers the kit came with sorry I'm new to small engine stuff sorry

Heyy,I got a gilera runner 172cc malossi and I get a flat spot when setting off....17 n 16g rollers

stick figure playing in the background?? dood hell yes

cilinder :DR evo 70cc 130€ Sklopka:malosi flay + zvon sklopke 90e Variomat: malossi multivar 2000 95€ Uplinjač: dellorto 17,5 85€ Auspuh:jasuni r black carboon look 260€

Hi guys! i have a scooter PCX with bigbore kit. 1200 center spring and 17/18grams rollers (stock 19Gram) bike runs very very good. remaped and dyno run. Stock Clutch springs with carbon clutch and stock Clutchbell after installing 14T rear sprocket gear. (stock 13T) i get slight vibration from CVT system. on full trottle. No issues with 13T gear.. Just higher gear ratio does slight vibration.. Any idea whats cousing this? Thanks .

You should do a video of 70cc kit, racing pipe, clutching what weights to use, I have 2004 Zuma 70cc kit, Yasuni R unrestricted pipe, 1500 contra 1,500 rpm spring not sure of weights? I'm thinking 6.5-7.5? Stock carb with jet kit 85 main

hey iv got an Aprilia sr 50 R Carb model with the Extra V2 exhaust , 5.5g rollers and had a 66 jet put in the carb. The bike starts up fine but taking off from a stop and up to 15mph or so it feels like there isnt any power. Once i hit 15mph you can feel the ooomph it gets up to 40mph no problem. Iv ordered some 4.3g rollers and a Jasil torque spring set (yellow/red/blue) but not added these in yet. What would you recommend ? Thanks! Love your channel

I have a GY6 150cc buggy. In stock, after pressing the gas, it hesitated as rpm builds up before moving and top speed opened up almost 40mph with aftermarket carburetor, new CDI, and large muffler. I think the variator had 12g sliders originally. I bought a clutch kit, 1500 rpm contra spring. Now my buggy takes off immediately, but it boggs down in grass or mud. Plus I lost overall speed. Do I put 10g sliders for better performance in the variator to match the 1500rpm contra spring?? And, how do I increase my torque so grass and mud doesn't slow me down so much.... thank you in advance. Oh, it's a dongfang gocart 2012

Yamaha c3 50f polini h.s. variator 6.9 rollers polini air filter , naraku clutch bell, stock belt ,clutch , and contra spring, twobrothers exhaust . I hit my rev limiter instantly at 8500rpm what do you suggest to lower the cvt to not tach out? I have a beast mode tuner which is adding more fuel 15 percent at all the rpm ranges.

Hi, i recently changed my 50cc cylinder in to a 70cc Athena racing cylinder for my Piaggio Zip 2-stroke. I have a racing pipe on it and changed the carb from 17.5 to a Polini CP 21mm. The problem is that my scooter doesnt go faster than 30km/h. The rpm's are pretty high but the torque is very low. Is there a possibility that the torque spring is too weak? I have a standard torque spring in it. Roller weights are 4.2 grams (polini vario), Thanks

should I stiffen my contra on stock engine?

Soo hey man i just wanted to ask because you are my last hope ive done a new exhaust (Yasuni Z) on my 2011 piaggio nrg purejet power and my scooter when you start it and ride it like for 300m, it go to 8 k and then suddenly it drops to 6200 and it wont go any faster my scooter goes around 32 km/h with stock everithing it went 89 km/h can you help me?

Hi! Need your suggestion, I upgraded my Yamaha nmax 155cc with Malossi big bore kit (180cc) and malossi exhaust. What is the best roller weights at springs i can use? *im also using malossi cvt kit with yellow contra spring and 66g of rollers Thank you in advance!

I have a 228 big bore decked. I swapped the ncy entire cvt kit from my 150cc with an exhaust job and foam filter. Im using same filter and different built exhaust. What do u suggest?

I have a stock 50cc buddy two stroke I put a polini speed exhaust changed the rollers to dr pulley 6gram sliders and put a 80 up jet the scooter starts first kick and idles fine but when I drive of and let the scooter rolls and then full throttle it it bogs down but when I give barley throttle it doesn’t bog anymore help

I have a 50cc that i put a big bore in. I have 6.5 gram rollers. I have a yellow clutch spring that IS NOT installed yet. My CVT screamsssss at top speed. What should i change ? Clutch spring? Contra? Lighter rollers ? I also have an exhaust on. I up jetted the stock carb. Again, i have yellow clutch springs and contra that i wanna install

Great video! However I'm in southeast Asia. I already removed the glazing of the clutch's housing and shoes with an 80 grid sand paper, but it still grabbing the clutch late, I'de like it much sooner. The shoes are still 3 mm high, so I guess less than 50% worn... Is there a good online source to order rollers for the variator, shoe springs for the clutch, higher shoes, etc, according to the scooter brand and model?

Hi.I have a 80cc big bore kit on qmb139 engine.It has crazy power and aceleration but top speed is restricted by transmitions.The engine is spinning like crazy and has enough power for more speed but transmition is stock.What weight of rollers do you recomend and also what springs.

I put a big bore kit on my jonway 50cc and aftermarket pipe new carb with 78 jet and performance air filter..i have also bought 2000rpm clutch springs and the other big spring but haven't installed that..my question is should i install the 2000rpm clutch springs?

Please help..🙏My scoot is 2004 Derbi - piaggio 50cc et2 engine, yasuni r, malossi 2000 multivar, polini clutch with green springs, original big clutch spring, I have the white one also that came with the variator kit...17.5 naraku carb...still trying jets at 84 now, pilot is 34. I couldn’t get it over 49 miles an hour. Still with original airbox, even I have the polini open air. Tried rollers from 5g to 7.2. The only difference pretty much is the acceleration, heavier rollers drop mile or two in top speed. Malossi kevlar belt...

Usually only changing your roller weight is enough if u just change the exhaust on a stock cilinder

I need help tuning my windjammer I have a symdd50 72cc malossi kit malossi crank 1500 contra 7gram weights all around stage six adjustable orange springs. Bike runs good until I let off the throttle and it takes seconds to get it it ti start going again

Hi im a big fun of u guys following on many places... anyway i was wondering if i could get some help.... im having a problema with my yamaha aerox, and i dont know what to do. I bought a variator malossi mhr and the revs go high af and she doesn't move, i also changed the springs from clutch to stronger ones and changed the rolers to 4.9 and 3.9gr and she is barely in the same, i also want to get a new exaust like yazuni z, what should i do to use the new variator? Should i buy a contra spring stronger and open more the carburator to get more fuel? My idea its to make her have more power to climbs and ofc little more top speed. PS: She still at 50cc that's the only thing i dont want to change.

Should my clutch engage before the belt starts moving down. SA50P, GY6 clutch and bell, Pollini variator 6.9 grams, clutch and torque springs 1k, oem vry thin else, (fj 88), i feel like i get better take off from oem torque spring, but maybe my rollers? Power about 1 Mississippi off the line, i want it more off the line! Help plz...

Hey just wanna ask wat is the best clutch spring and center spring for 90cc dio? Thanks

Hey. I've got a piaggio neg with a leovince exhaust. I changed the clutch springs and rolls to the ones that came with the exhaust. I also changed the torque spring to a malossi one. I changed the carb main jet to 80 from a 75. When I start going the scooter just boggs until like 8k rpms and then it lifts off nicely but its like unrideable. I have no clue what rpm the parts that I changed are set to. What parts should I try to change?

Struggling with this a lot on my Gilera :( Have an Mk2 racing with an R1200 pipe (stage6) hits peak power at 12k rpm from what everyone says but i just cant get it in tune.. Either bogs or starts misfiring like crazy.. tried tons of combinations.. gurgles a lot at WOT acting rich but its not.. but that i believe its ignition, stock. Did the mistake of putting 3.3g rollers and the stator just blew up breaking all the bolts lol .. Ive got now 5g rollers (30), medium contra (orange from S6) and stiff black clutch springs (complete stage6 cvt kit with torque control clutch) Any tips for a noob like me on which way i should go with the cvt for this setup? TIA PS: i can fit 3 hotdogs in my mouth

Hi I’ve got a Yamaha aerox with a stage 6 replica exhaust (carbon). It revs and goes but goes slow until it hits 20mph as soon as 20mph hits it shoots off really quick and goes 55mph I was wondering what I can do so it goes quick from the start?

If i have a Honda SH 125i and i just want to change the rollers, contra spring. Would it interfere with the performance of the cylinder/piston? Or would i also need a sport exhaust??

I have a wild lion malossi exhaust with a multivar malossi variator 7.2g rollers the bike is 50cc 2t what recommended setup would you say is good, so far I don't get a lag and top speed has increased but what input would you recommend

I have a peace motors 50cc gy6 139qmb I changed the clutch variatior and vibrator now my top speed is way lower

Hello I got a noes/mbk ovetto and it's got a big bore70cc it's got a pipe it's got a better clutch on the bike unsure of rollers tho? Stock carb 12mm with a 72 jet it will not for the life of it Rev up it'll idle all day it'll pick up if I fiddle e choke but it just wants to bog every time I touch the throttle like either to little fuel or too little air what would you suggest thanks anyway

Hello I have a piaggio typhoon -70cc kit 47mm -Malossi exhaust -stock carburettor with idling jet 56 What kind of spring do I need (the big one) and what kind of small springs and also how much weight should the rollers be ?

Hey! Do you know why this happens? So i had stock 50cc and technigas exhaust, revs up to 9500rpm, used 5.0g rollers. Changed to mk2 racing, c21 pipe, 24pwk carb, etc... I put red malossi contra spring but it needs heavier rollers than with stock setup, 5.25g. Revs up to 14-15k rpm

hello i put an airsal 70 kit on my bike and i modified the cvt with an aftermarket clutcch (polini 3g) and a malossi multivar variator and a malossi white contra spring and when i accelerate the bike takes off fine but when you get to about 30 kmh it does not want to go past 9k rpm and is really slugish if you could recommend something thank you

my scooter has great throttle response but around 40khp i can hear it go louder and it feels like its gonna go faster but it doesnt. it feels like i have a rev limiter on

Hi man, I am having some cvt trouble. I have the 50mm bore ,pipe,carb, variator and high performance clutch. I am using a stock contra spring and stock shoe springs and 6.5 sliders. And its revs b4 taking off. I lost tourque and acceleration. What can I do to get my tourque back and be back at 45 on this 50cc?? I was using 1000rpm shoe springs b4 with stock contra spring and 4.5 rollers. And it seemed way better. I cant put it back the same way cause rollers are shot and I lost the shoes springs. Please help .

I recently purchased a ruckus w/gy6 swap. The guy claimed it was big bore to 180cc...how am I able to tell if it’s been big bore? Also, it has a yellow contra spring with 11 grams sliders and I was topping out at 45mph so I decided to add 14 grams and now it’s hitting 50 mph. Should I add 16 grams?

And business sorry should have added that you guys are the best and I have anew world for you to enter in please respond

If I big bored my scooter and did not change the contra spring, does it have the possibility that the belt will slide on the torque drive?

Hi, I have a ruckus 50cc with intake and ssp-g exhaust. I believe I have the jetting correctly 38sj/82mj and needle shim. It idles and accelerates perfectly but can’t get it to go over 30mph. (Top speed was 42-43mph with only the intake). Any advice on the rollers/sliders weights, as well as the springs? Also, I weight 160lbs. I’m new to this so any advice/recommendations are grately appreciated.

Hey there bud I’m a big dude 260LBs running a naraku CVT performance kit on my 49cc I’m about to do a BBK what do you think my starting reference should be for weights clutch spring and contra and a 20mm carb

You put out some great content, I just revived a 2015 Prescott 50i , it has 200mi on it and all stock, I inspected the CVT and it looks ok, bike only gets about 32mph top now, should I just replace the rollers and clutch springs in the stock variator and clutch, or should I get a inexpesive amazon racing variator and clutch and upgrade off of that? TY again!

I upgraded my Yamaha Bws 100 to Malossi 124 cc kit with 22mm carb. and ı use my original exhaust and cvt what do you suggest to improve my top speed ?

What are your thoughts on the stage six over range kit?

Hi Brandon, i have a sym hd 300, wears polini variator 24grams and free air filter dna. 0-100 very fast but then ,drops , ehat mod do you suggest , ??

Hey Brandon! Thanks for all the info over the years, it's helped my prebug do a cool 50mph. I noticed in some comments you mention the Polini variator is flawed. Do you have a video explaining this in more detail? I can't seem to fully variate, no matter what sort of tweaking I do to my setup. Thanks!

I put sport exhaust on my 50cc 2 stroke and it wont go, it takes of at 7k rpm and slowly drop rpm and stops. So i put bigger main jet and now it takes of perfectly but slows down at 20mph and after 40mph the powet kiks in

My bike has a 70cc big bore kit. What springs would I need. Because my bike bites on around 7k RPMs and it’s really slow to take off

I I was.wondering what the RPMS on my PG long pipe? Would you know?

Is this also the same for a four stroke when putting a 100 cc big bore kit on a 49 cc?

What happens if i mix my rollers, and which gram is a popular light roller?

Yo mann..I ride ey yasuni R exhaust..41mm bore.what contra opring n clutch sppring can I use..and vario??5gram??

please can someone help me , i have an Aprilia sr50 lc ditch 2002 and I have a leovice zx exhaust and my roller weight is unkown so i need help to find the right springs and roller weight for it to land att the power curve consistent. would appreciate the help thanks:)

Wich set-up do i need if my scooter doesn’t go fast in the beginning? What do i have to change? I have a yamaha aerox r 49cc from 2005

Hi guys. I have 2004 BWS 100 2t. I have malossi delta clutch, ive tried yellow red green white springs for the clucth. Red and yellow torque spring. 28mm carburetor with 38 pilot jet 130 main jet. Mallosi reed valve. Mallossi CDI. V8 exhaust. But i still can get the top speed. I need help 😅

What would you recommend for super 9 with technigas triops a70 cc malossi kit

Hey i have a pipe big bore big carb and power filter, what spring should i choose? I can only find contra springs for mine not any clutch springs

Installed a 70cc and a new pipe 4,6 g scooter runs smoothly on idke but if you rev it the wheel doesnt roll, just sits there, only revs up to 4k

Hello. I have a Yamaha bws. when i drive away it goes slowly for maybe 7 seconds. but after 7 seconds it goes away. what should i fix?

Yo, I need info on the best setup for a Burgman 400, it warms up around 2,000 at the highest idle in the coldest of climates and yest it is limited to 900 RPM and I want to have the transmission engage right after the highest point of rpm for warm up as well as get a better top speed over all. I know I can Darkside it with a 155/65R13 and a tire shop that will let me mouth it myself (I am a trained tire tech and know what I am doing when Darksiding a bike and willing to help if others want to Darkside and when it comes to bikes that have smaller rims dark siding is the only way a tire has the speed rating to safely ride when top speed is reached for example a 150/70/13 M/C motorcycle tire speed rating is 68MPH but my Burgman 400 maxes out at the moment at 112 MPH at 9,000 RPM however it takes longer to get there and I have to ride longer on back roads to break it in because it rubs and high rates of speed can rub down the tire to much at one time and blow out the biggest a 02 to 06 model 400 should have on it is a 140/60/13 M/C. That's why Darksiding is better in this application) I need faster speeds at lower rpm and more torque because when merging on as well as long distance on the interstate it is better to get up and away from a bad driver where they are far behind you where if they wreck it's far back behind and away from you rather in front of you making you sit in traffic or being in an accident as well as if you need to get over, speeding up and getting over is better than slowing down then trying to merge over which slowing down can get you steam rolled here in Atlanta which I have had to jump on the line between 2 lanes to keep from getting ran over by SUVs with drivers who text rather than look where they're going and have to slow down then gun it just to get over to keep from missing my exit, I have never had an issue on larger displacement bikes because the torque is there. If it can hit 112 at a lower RPM then 55MPH, 65MPH and 70MPH will be at lower RPM which will make the engine last longer as well as get even better MPG while the added torque makes the bike more capable of getting up to speed, merging, getting away from hazardous drivers as well as make the ride a bit safer. I know I'm putting Dr. Pully 21G sliders on it but I also need info on clutch springs and the other spring on the rear to give me the best setup plus my 1/4 Mile drag times and lap times will benefit because yes I do got to the drag strip and track with my daily scooter from time to time which as funny as it sounds I get a lot of respect questions and request about my 400 from and a few of the guys that that asked me about have bought themselves a Burgman 400 which they all tell me they love but have the same complaints of not enough torque for Atlanta and saying if it was to have more torque as well as get even better than 100MPG then it would be the ultimate setup.

Hey I want my piaggio scooter to wheelie off the line, what should I do?

50cc can’t go up hills from stand starts , what advice can anyone give , already bought lighter rollers , no change !

Hello I have a 139qmb with a 47mm bbk with 6 gram rollers and 1000 rpm contra spring and clutch springs I'm getting around 45 mph and I'm trying to get more what do you think is holding me back?

I have a Jetforce that was going 80-90 km/h. Changed the clutch and now it barely goes 40. Is there a restrictor in the clutch?

I have a 1999 piaggio typhoon goes about 80km/h picks up the wheel until 40km/h then power ends, what should i do i have a stock clutch light rollers and a race exhaust

Hello, what colour torque clutch spring would fit my combination the best? I have Aprilia SR 50 R 2020 with a Malossi MHR Replica kit, Yasuni R pipe, 6G rollers, Yellow clutch springs, stage 6 belt , 88 main jet and an Air Sports Malossi filter. Still im using the stock torque spring tho.

Hey i have aprilia sr with 50cc aircooled cylender and i have 6.5g malossi rollers wich springs i should put in the cluch ? Soft or hard ?

Brandon, did you make this video just for me? Haha.

I have 5g weights and 2000rpm springs so should I change them when I put a bbk on

Hello guys, i have on my 50cc scooter a stock engine, a performance exhaust, performance cdi , performance ignition coil, carburator 17.5 jet 70, and i changed the clucth whit torque spring blue 1000rpm and and clucth spring blue 1000rpm and the belt its slipping, based on my setup could you help me what torque spring and clucth springs to use? Ps.4g rollers

Do you make tutorial for 4 strokes ?

More dyno videos please

this is great. i have a slow start until 12-14km/h then it flies away. I understand that i need to change even stiffer clutch springs because main spring is stiffer and i have lighter rollers. other thing is maximums speed is ~70km/h before it start to raise rpm for higher speed so how do i increase top speed? its 70cc with 17,5carb, stage 6 pulley and exhaust. its minarelli engine and others with the setup as mine go 100-110km/h so i understand my CVT is way too short. i hop you could give me some tip.

Which is the Best clutch spring medium soft or hard,

What about a 50cc GET with a spiral exhaust?

anyone got something to input, i have a 59mm or a 160cc borekit upgrade a racing pipe, a 13.5 pulley set with straight 9g, 1000rpm center and clutch spring and a racing clutch bell..