VMC ET6-60 aluminum cylinder, 144cc, Ø 60mm, 51mm stroke for Vespa Primavera - ET3 - PK side spark plug

Description

VMC ET6-60 144cc � 60mm cylinder kit and 51mm stroke
6-port aluminum cylinder, shell molding technology, Barrel with Nikasil treatment
Bore diameter 60mm Stroke 51mm Displacement 144cc SINGLE PORT EXHAUST
Phases Main decanting 126� Exhaust 186�, exhaust stud center distance 56mm, exhaust outlet diameter 32mm
Piston with 2 Rik steel rings complete with pin and stops.
Head in die-cast aluminum with SIDE spark plug with 4 additional fixing screws.
Squish 1.1mm � 0.1mm. Tightening M7 stud nuts: 11�12 Nm, Tightening M6 screws 10�11 Nm
Complete with nuts and bolts and paper cylinder gaskets of various thicknesses.
It is a multifaceted cylinder that is suitable for quiet processing as well as more extreme processing.
With more generous expansion mufflers like the VMC EVO 52 it transforms into a classic 2-stroke racing engine
Mounted with the Vmc Siluro Sport, the cylinder transforms into a fast touring engine with generous torque right from low revs and with excellent extension.
Warning: To be mounted on Piaggio crankcase it is necessary to eliminate the crescent on the crankcase base and bore the cylinder mouth on the crankcase with a diameter of 64mm for a depth of about 8mm to let the cylinder liner enter the crankcase .

THIS OPERATION CAN BE CARRIED OUT WITH A HAND MILL USING THE STEEL GUIDE SUPPLIED WITH THE KIT, SCREWING IT TO THE CYLINDER STUD HOLES.