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To have the catalytic converter function correctly and for
long and to reduce possible problems regarding the soil-
ing of the thermal unit and of the exhaust, it is necessary
to avoid covering long distances with the engine running
at constantly low rpm.
It is sufficient to alternate these periods with periods in
which the engine runs at relatively high rpm, even if only
for a few seconds, but rather frequently.
What has been stated above assumes particular impor-
tance for the cold starting of the engine: in this case, in
order to reach a rpm regime sufficient to enable the
"priming" of the catalytic reaction, just make sure that the
temperature of the thermal unit has reached at least
50°C, which generally occurs a few seconds after start-
ing the engine.
a
Do not use leaded petrol, since it causes the
destruction of the catalytic converter.
R75 @ FA5 3 D 6 3R3
EGRGP
Model ................................................................... aprilia
..................................... 2-stroke single-cylinder
Type
Cylinder .............................................................cast iron
Bore / stroke ...................................... 40 mm e 39,2 mm
Compression ratio ................................................... 13:1
Displacement ...................................................... 49 cm³
Starting ................................................................ electric
Gearbox ..........................................automatic converter
Transmission oil capacity................................... 110 cm³
RP3FQEAQQAGF
Primary ............................................................... "V'' belt
Secondary ............................................... reduction gear
Variator .................................................................... 3YJ
A9FARAGF
Typ .................................................................. electronic
Spark advance .........................14° at 5000 rpm 1,4 mm
Spark plug ................................................ NGK BR7 HS
53P4SP7RRGP
Model ............... Dell'Orto PHBN 12 (TEI KEI TK12Y12)
with lamellar inlet
with belt drive
before T.D.C.
3
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