VESPA LX 150 4T Euro 3 Service Station Manual page 144

Engine
- Using the rpm indicator of the analyser or an in-
dependent one (020332y), adjust the idle set
screw until 1600 ÷ 1700 rpm is obtained.
N.B.
THE WASTED SPARK IGNITION SYSTEM OFFERS RE-
MARKABLE POWER. READINGS MAY NOT BE ACCU-
RATE IF INADEQUATE RPM INDICATORS ARE USED.
CORRECT COUPLING OF THE RPM INDICATOR WILL BE
INDICATED WHEN IT CAN READ RPM OVER 6000 ÷ 8000
ENG - 144
Vespa LX 125 - 150 4T Euro 3