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The carburetor is equipped with a depression pump to remove fuel from the tank, but
do not exceed the height difference between them as it has not exceed to 50-60cm. The
same applies to the tube: Do not exceed 50-60cm.
You may inserted a manual pump between the tank and carburetor, to make the mixture
reach the carburetor before the start, avoiding stress to the starter.
CARBURATION
NB: in this paragraph the words "MIXTURE" indicates the union of the two elements (AIR) + (OIL
/GASOLINE) which takes place inside the carburetor.
Weather conditions or altitude changes have influence to the operation of the engine
as it varies the air density and, consequently, changes the mix ratio between the
element AIR and the element OIL /GASOLINE.
In general, we can say that at high altitude, high humidity or high temperatures, less air
enters and therefore the mixture is richer in oil/gasoline: you will have to re-establish
the proper relationship by screwing the two screws "H/L”.
In contrast, with low temperatures and low humidity, the air will become denser than
the lean-burn oil / gasoline, and consequently you will have to unscrew the two screws
"H / L".
WARNING: A mixture that is too low in oil/gasoline causes considerable damage to the
engine, which can cause it to break down and/or stop suddenly. It is recommended to
carry out the carburetion operations with the ENGINE SWITCHED OFF.
When the "H / L" screws are tightened/loosened, carry out variations of 1/8 of a turn
each time or "45°", larger movements in a turn can cause engine damage.
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