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.
- 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
LXV 125 Engine
ENG - 145
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