8
4.3 Starting and turning off
In the first starting of the engine and every time the gasoline piper remains without fuel
(tank, pipe, primer bulb and carburetor), will need to fill the circuit before starting the
motor. To do that, it is necessary make pressure on the primer bulb of the gasoline and
at the same time, with care on the valve of the carburetor (indicated with the number 6
in the following picture 4.5) up to the filling of the pipeline. It will be easy to see through
a transparent pipeline the gasoline that enters into the carburetor.
For a good starting of
the engine when the circuit is empty or the motor is cold, need to enter just a few of
gasoline in the carburetor
. This small quantity of gasoline, will work as starter/choke to
the motor. Attention if the quantity of gasoline that you push with the pomp to the
carburetor is excessive, there is the risks to flood the motor, even then to damage the
pull starting.
The best starting of the motor Vittorazi is gotten without throttle or with a minimum of
throttle. If the circuit of fuel is on pressure and the motor is warm, it won't be necessary
to make pressure on the primer bulb and valve.
Always watch out for the propeller during the starting and for whom could be
nearby. Many accidents happen before going to flight. On every test or warm-up,
we suggest to always wear the paramotor on your shoulder, to fast the harness,
then to turn on the engine with the pull or electric starter, ready however with
the killing button to stop the motor in every moment.
Important: often verify that the killing button is working. Sometimes the killing
buttons can get jammed or during the time can stop working.
4.4 Warm-up
You softly get throttle in the first 30 seconds allowing to stabilize the carburetor and the
motor. Now you increase the number of turns (thin to 1/4 around of throttle) and let
warm-up the motor for 2-3 minutes to this constant speed. Finally get the motor for
some second (15-20 seconds) at full throttle. Now your motor is ready to the flight.
These 3 minutes of warm-up also have to be dedicated, thanks to your attention, to
understand if the motor has some anomalous behaviors, if there are unexpected
vibrations or noises not desired.
