VARIATOR CVT TUNING TIPS! HOW TO Make Your Scooter Faster!

Here's a handful of tips on how to tune your CVT/variator!
Shifting at the right rpm is essential for getting the best acceleration and speed out of your 2 stroke or 4 stroke scooter! What does changing roller weight do? How does the contra spring stiffness affect things? Do you have to run 6 rollers? Can you mix different roller weights?

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[gowthamakash]

finally found something useful regarding tuning
THANK YOU SIR

[adhikaprajnanandiwardhana]

This information is really accurate according to so many misconceptions in CVT tuning.

[eliecervargas]

easiest way to explain cvt tunning on the web. 1 extra gram on the rollers will give the engine 350-450 lower rpms at same speed (wich helps on fuel economy as well as durability. not all us us are racers. also try a gear set to combine and have better cruising speed

[ristozekic]

There is one important thing when you place you rollers.
Their sides are not the same.
One side is thick, but the other side is thin.
When variator works, it rotates to the left, but the force pushes rollers to the right side.
You need to position the rollers so that the thinner side goes to the left.
I hope I helped you, this is very important and make sure you did this right.
Best regards! :)

[royromero]

Thank you sir! Straight to the point👉 just the way I like it!

[soulshinobi]

1:48 I was so scared to see this, thankfully it's just for measuring...

[jmbriones]

First time to watch this video. I learned alot. And im subscribing. Thank you.

[Znourf]

a tip coming from a pro in scooters with the double variators the best results they found was to adjust the the weights so that the motor pulled slightly higher rpm than the max torque that is 200 to 300 rpm sometimes only 100-150 .

[baristasmaestro]

your quick tips was very very important quickest tips for us, thanks for this usefull quick video

[alexqeq]

Super easy and simple, you helped me a lot with this video, tank you very much !

[keithgunn-glanville]

I like it man. You’ve got a straight to biznaz style. I’m gonna watch more vids

[airbats]

Fantastic video, no bullshit, straight to the point. Thank you!

[crazywaynegoogle]

And the rear Contra spring assembly some of those have angled slots that the rear cheeks will move in the angle of those will allow down shifting when applying throttle when starting up a hill or coming out of a turn.
This angle can be fine tuned by a lighter or stiffer country a lighter spring will allow quicker and lower gearing giving higher RPM changes.
Stiffer spring will give less of downshifting with less RPM gang when full throttle is applied.

[RollingThunder]

Very important tip to check belt ride height with marker pen for the fastest top speed. Removing the shim between the pulley or a shorter sleeve will make it ride higher.

For a faster start many will install a stronger clutch spring to engage at a higher RPM for more power but fail to check if the varistor is still in low gear. You just might be starting off in high gear.

[akbarhussain]

Your stuff you do is pretty cool, you have a great garage as well, thank you for all your fab tips & tricks...

[whipplecreekracing]

Thanks dude! I'd love to see more about the effects of tuning cvt transmissions

[BrendaEM]

Good tips. I like your test belt ideal. If I might expand on your idea.... You could use contact-cement velcro strips on the adjustment, so that the belt would not have a proud(wide) edge that would interfere with sheaves (pulley) while judging length. You still aren't going anywhere with it, but it might be able to cycle a few times, as long as the rear wheel is up.

Perhaps also, you could add measured white lines for calibration.

[MarkHorn-tdmh]

If measuring for custom belt size, measure in such a way that the belt rest on the lowest-inner most spot on variator, and on the highest-outter most spot on clutch drive pulley, with normal amount of tension.

[joshuaharrison]

Just to resurrect a fossil, like Alex said a spring just stiff enough to not slip is best. Trick I found here is to cut one of those china dio springs down.
I wanted light weights, but they could not overcome the spring force & variate fully until I used a weaker spring.

[amalousmand]

I agree. I chek 24g off stock i reduced to 20g by drilling it. Now accelerate is incresed. 😁