ST BP 375 Manuel D'utilisation page 124

IMPORTANT Using petrol alone will damage
the engine and will void the warranty.
IMPORTANT Only use quality fuels and oils
to maintain high performance and guarantee
the duration of the mechanical parts over time.
7.2.1 Petrol characteristics
Only use unleaded petrol with an
octane rating of at least 90.
IMPORTANT Unleaded petrol tends to
create deposits in the container if stored for
more than 2 months. Always use fresh petrol!
7.2.2 Oil characteristics
Only use top quality synthetic oil that is
specifically for two-stroke engines, with
minimum JASO FC specifications.
Your Dealer can provide you with oils which
have been specifically developed for this
type of engine, and which are capable of
guaranteeing a high level of protection.
The use of these oils makes it possible
to prepare a 2.5% mixture, consisting
of 1 part oil to 40 parts petrol.
7.2.3 Preparation and storage
of the fuel mixture
The chart indicates the amount of petrol
and oil to use to prepare the fuel mixture.
Petrol
litres
1
2
3
5
10
To prepare the fuel mixture:
1. Place about half the amount of
petrol in a homologated tank.
2. Add all the oil.
3. Add the rest of the petrol.
4. Close the top and shake well.
IMPORTANT The fuel mixture tends to age.
Do not prepare excessive amounts of the fuel
mixture to avoid the formation of deposits.
2-stroke
synthetic oil
litres
0.025
0.050
0.075
0.125
0.250
EN - 10
IMPORTANT Keep the petrol and
fuel mixture containers separate and
easily identifiable to avoid the mistake
of using one in place of the other.
IMPORTANT Periodically clean the petrol and
fuel mixture containers to remove any deposits.
7.3 REFUELLING
Refuelling must take place
when the machine is switched off
and the spark plug cap removed.
Before refuelling:
1. Shake the fuel mixture container well.
2. Place the machine on a flat stable surface,
with the fuel tank cap facing upwards.
NOTE On the fuel mixture tank (Fig.
11.A) there is the following symbol:
Fuel mixture tank
3. Clean the fuel tank cap and the
surrounding area to prevent any dirt from
entering the tank during refuelling.
4. Open the fuel tank cap carefully to allow
the pressure inside to decrease gradually.
5. Use a funnel to refill and avoid
filling the tank to the brim.
7.4 CLEANING THE MACHINE
AND THE ENGINE
To reduce fire hazards, keep the
machine and, in particular, the engine
free of leaves and branches.
• Always clean the machine after use with a
damp cloth dipped in neutral detergent.
• Remove all traces of humidity using
a soft damp cloth. Humidity can
generate risks of electric shocks.
• Do not use aggressive detergents or solvents
to clean the plastic parts or hand grips.
• Do not spray water onto the engine
and electrical components and
prevent them from getting wet.
• Always keep the rotor clean and free of dust
and debris, by blowing compressed air through
the grille. Do not spray water on the rotor.
• To avoid overheating and damage to
the engine, always keep the cooling
air vents clean and free of debris.