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WHAT A HEADACHE! Who has never broken their nose to adjust their variation and not understand anything raise your hand! I suspected it, I was not the only one. It is indeed not easy to find the right adjustment of your variation... at least, quickly. This adjustment requires time, method, and understanding of this mechanism. I suggest you develop this subject in order, at the end of the video, to UNDERSTAND EVERYTHING, to better understand the adjustment of the variation of your scooter. 🛒 The material used in this tutorial: the adjustable / programmable rollers: in 15x12 (dimensions of the original booster variator): https://www.scootfast.net/galet-progr... in 16x13 (dimensions of the Polini or Peugeot scooter variator): https://www.scootfast.net/galet-progr... in 19x15 (Malossi large range): https://www.scootfast.net/galet-progr... The thrust springs: original: https://www.scootfast.net/ressort-de-... white malossi +30%: https://www.scootfast.net/malossi-com... yellow malossi +35%: https://www.scootfast.net/malossi-com... red malossi +40%: https://www.scootfast.net/malossi-com... 👍To support it: the tipeee link : THANK YOU!! https://fr.tipeee.com/le-chant-du-cli... 🔧 Small links to essential tools for disassembling/reassembling your two-wheeler: the essential 1/4' torque wrench: https://www.amazon.fr/gp/product/B08H... the 1/2' torque wrench: bigger but also useful: https://www.amazon.fr/gp/product/B01N... A very good electronic caliper and always useful for this type of measurement: https://www.amazon.fr/gp/product/B082... Booster variator block: https://www.amazon.fr/gp/product/B07J... Clutch disassembly key: https://www.amazon.fr/gp/product/B071... Ignition lock key: https://www.amazon.fr/gp/product/B07N... The ratchet wrench set with bits TO DISASSEMBLE EVERYTHING: https://www.amazon.fr/gp/product/B07B... ⚙ Small config. 50CC that works WELL: Good parts to optimize your scooter, easily: 50cc POLINI cast iron kit: https://www.scootfast.net/kit-cylindr... YASUNI R exhaust: https://www.scootfast.net/yasuni-exha... 17.5 PHBN carburetor: https://www.scootfast.net/carburateur... POLINI Hi-speed variator: https://www.scootfast.net/polini-vari... programmable rollers to adjust the variation to the hair: http://www.mir35.com/galet-programmab... Config' in KIT 70: MOST 70CC kit: https://www.scootfast.net/kit-cylindr... 19mm dellorto carburetor: https://www.scootfast.net/carburateur... 00:00 Introduction 01:34 1 - Theory: the 3 phases of acceleration 06:25 2 - The material needed to adjust your variation, to perfection! 11:20 3 - My method for adjusting and finding the right parameters for my variation 19:01 Conclusion I am Simon and I make mechanical tutorials for all 2-wheel enthusiasts, 50cc scooters or more. If you want to see me tackle specific topics, I will try to look into them: do not hesitate to tell me in the comments the topics you are thinking of. To ask me questions, technical difficulties, with photos, you can use the Instagram account linked to this channel: The Instagram account of the YouTube channel. https://www.instagram.com/p/CD1_0Aini...