Cylinder Head Conversion

for Vespa 150 VB/
L/
2/
3/
CMA GL
aluminium, CNC machined

57,0 mm
piston GRAND-SPORT 150cc

TUNING ROAD – for everyday use Product description
This
SIP conversion cylinder head
represents an economical first step on the road to tuning any Vespa wideframe model. Aluminium / CNC machined. This cylinder head can only be used in combination with a 150cc piston (#75008000) produced by GRAND SPORT.

This cylinder head conversion kit includes an ‘O’ ring gasket for improved sealing. Vespa motors with 150cc can be fitted with this cylinder head without any further modification. Models that are fitted with the 125cc cylinders will require these to be re-bored and honed to a diameter of 57mm.

Mounting Tip : The timing of the ignition will require adjustment :

20
before Top Dead Centre (TDC) for non-modified cylinders.
18
-19
for modified cylinders.
Flytech, Vespatronic : 23
-24
@ 2500-3000 rpm.
EAN Number:
4260335254738