Adjusting The Idle - VESPA LX 150 4T Euro 3 Service Station Manual

Vespa LX 125 - 150 4T Euro 3
plate with the machined side contacting the starter,
tighten the fixing screws.
- Position the starter as shown in the figure.
- Assemble the protection casing.
N.B.
TO CARRY OUT THIS CHECK PAY SPECIAL ATTENTION
NOT TO GENERATE SHORT CIRCUITS USE A CABLE
SECTION WITH A TERMINAL SUITABLE TO BE CONNEC-
TED TO THE STARTER.
Characteristic
Starter pin travel
10 mm (at 24°)
Starter resistance
20 Ohm (at 24°)
Check aut. Kehin max. time starter
5 min

Adjusting the idle

- The engine does not require frequent idle speed
adjustments, but it is essential to strictly follow cer-
tain rules when adjusting the idle speed.
- Before adjusting the carburettor make sure to re-
spect the lubrication requirements, valve clear-
ance, and complying timing, spark plug should be
in optimum conditions, air filter clean and sealed,
and the exhaust system tight.
- Warm up the engine by running it at least 5 mi-
nutes at approximately 50 kph.
- Connect a millimetre thermometer (020331y) on
the sump, using a cover with oil expressly pre-
pared for probes.
- Start the engine and before adjusting the idle
speed, make sure that the oil temperature is be-
tween 70÷80 °C.
Engine
ENG - 143