TAKE YOUR SCOOTER TO THE NEXT LEVEL
WITH YASUNI HP RACE SPEED CONTROL
The speed control is the heart of your scooter’s automatic transmission. It is the piece in charge of managing how the engine’s power is delivered, deciding when it accelerates hardest, how it responds in starts and overtaking and how far it goes in final speed.
In other words:
It doesn’t make the engine more powerful, it makes the power better used.
A well-designed speed control completely transforms the driving feeling:
More response, more control and a much sportier and more efficient experience.
OUR VARIATOR
YASUNI HP RACE
Competition engineering applied to the street
The YASUNI HP RACE speed control has been developed from our experience in competition and high performance, designed to get the most out of your scooter while maintaining reliability and daily use.
It is specially designed for those who are looking for:
A plus of performance without compromising durability.
More precise and responsive driving.
A race-tested product for everyday use.
Acceleration plus
Fast and progressive
The scooter comes out more decisively from a standstill and responds better to gas at any speed.
Better
Recovery
Ideal for the city, roundabouts and overtaking. The engine is always in its optimal zone.
Sportier driving feel
The scooter feels more alive, more direct, and more fun to ride.
Optimizing Engine Performance
The drive manages the revolutions better, avoiding unnecessary energy losses.
Smoother
and reliability
Less vibration, cleaner operation and more controlled transmission wear.
VARIATOR
PARTS
The bell regulates the movement of the belt. Its design and finish allow for a smoother and more precise movement, ensuring a progressive transition between gears.
Central guiding element. It ensures perfect alignment of the assembly and reduces internal friction, improving the response and service life of the drive.
Responsible for the variation of development. Its shape and weight are optimized for more effective acceleration and consistent power delivery.
Manufactured to very tight tolerances. It is the basis of the system and responsible for maintaining stability, balance and precision at high revs.
Reduces friction and wear. It provides smooth operation and improves long-term reliability, even under heavy use.
HP RACE SPEED CONTROL ASSEMBLY TUTORIAL
FAQS
The variator is the main element of the CVT transmission. It automatically adjusts engine speed by modifying the diameter of the drive pulley according to engine speed, load and speed, optimizing response at all times.
Always check:
– Motor code
– Pin diameter
– Ramp angle
– Roller type (cylindrical or sliders)
– Belt width
Never mount a drive by visual similarity.
It is recommended to use:
– Calibrated torque wrench
– Variator or clutch blocker
– Impact sockets
– Caliper or micrometer
– Compressed air
– High temperature grease (only if indicated)
During disassembly it is important to check:
– Wear of the pin
– Flatness of the fixed plate
– Possible abnormal axial play
In addition, the area must be cleaned before any intervention.
The process should follow this order:
It is recommended not to vary more than ±1 g with respect to the base value and always test under real conditions.
After installation:
Yes.
Recommended:
