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PR3 User’s manual Page
28
FUEL FILTER
Fuel filter is placed between right beam
and carburettor, below driver’s seat. It
should be replaced whenever there is
dirt on it, because dirt can reduce or
block fuel flow producing loss of power
or irregular engine functioning.
THROTTLE CABLE
Adjusting throttle cable (*)
The throttle grip should always provide
for a backlash of 2-6mm, measured in
the adjusting screw outside the throttle
grip. Besides, with the engine running,
the idling speed must not change if you
turn the handlebar all the way to the left
or right.
To adjust throttle cable, draw back dust
protection, loosen the counter nut (1)
and turn the adjusting screw
accordingly (2). Tighten the counter nut
and check whether the throttle grip can
be actuated smoothly.
IDLING
Adjust idling
Idling adjustment of the carburettor
strongly affects the engine starting
behaviour, that is, an engine whose
idling speed is adjusted correctly will be
easier to start.
The idle sped is controlled by means of
the mixture control screw (1). Turning
the mixture control screw clockwise
reduces the fuel quantity (lean mixture);
turning counter-clockwise increases the
fuel quantity (rich mixture).
ENGINE OIL
Recommendation
Use only branded oil for four stroke
engines, to ensure a long engine life.
Use only oils meeting or surpassing the
quality requirements of API classes SF
or SG:
Recommended oil:
ENI / Agip i-Ride moto SAE 20W-50
Specification: API SG JASO MA, MA2.
Checking engine oil level
Engine oil level is checked in a glass
placed in front of rear brake pedal.
Level should be between Min and Max.
If oil level is below Min, oil must be
refilled immediately. If you check that
1
2
1
Ma
x
Min
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