Kit 158cc POLINI Ø59mm, cylinder / piston with computer for YAMAHA CYGNUS 125 4T (with injection)

The famous kit POLINI aluminum for the motors of maxi scooter 158cc YAMAHA CYGNUS injection! Thanks to its 59mm diameter and improved compression ratio, it offers more torque and power! Its cylinder cast aluminum high-end cast iron is really very robust, it comes complete with axis, segments, joints, instructions, warranty ... But also and especially the famous engine reprogramming box to change your carthography injection! The case allows you to prepare your air box and find the right ratio air / fuel to get the right AFR, very easy setting! Ofrre a very good cooling. Very good quality, mounts in combination with the original cylinder head, sports exhaust recommended!

Mounts on : YAMAHA CYGNUS 125cc has carburetor