THE YOUTHFUL EXERCISE 1998. Target: "turn the current YPVS valve of a Yamaha 250 cross into a gate valve able to exploit any kinematic motion of the off-the-shelf motorbike". As you can see in these pictures the result of this conversion can be substituted to the original cylinder without modifying anything. It allows to reduce remarkably the speed torque of the current motorbike.

DESIGNING
I took part to the QUOTA 1000 project for Moto Guzzi.