Beta RR 390 User Manual

3
CHECKS AND MAINTENANCE
48
GB
AIR FILTER
A dirty air filter hinders the passage of air,
reduces engine power and increases fuel
consumption. For these reasons it is essen-
tial to clean the air filter on a regular basis.
Follow these steps to gain access to the
air filter.
•Pull the cover air filter.
•Release filter fastener 1.
•Soundproof shell removal
•Pull out air filter 2.
•Carefully wash the filter with soap (or
special detergent) and water.
•Dry the filter.
•Wet the filter with filter oil and then
remove the excess oil to prevent it from
dripping.
WARNING
To avoid corroding the filter, do not clean
it in foam containing petrol or petroleum.
Never use the vehicle if the air filter is not
in place. The infiltration of dust and dirt can
cause damage and considerable wear.
•If necessary clean the inside of the filter
box.
•Replace the filter taking special care to
ensure the seal of the rubber gasket.
•Attach filter fastener 1.
WARNING:
After each operation check that no object
is left in the filter box.
Clean the filter every time the vehicle is
used over rough ground.
2
1
1
2

Beta RR 390 Specifications

General

Displacement	386 cc
Bore x Stroke	88 mm x 63.4 mm
Compression Ratio	12.5:1
Fuel System	Electronic Fuel Injection
Ignition	DC-CDI
Lubrication	Wet sump
Transmission	6-speed
Clutch	Wet multi-disc
Front Tire	90/90-21
Rear Tire	140/80-18
Ground Clearance	320 mm
Dry Weight	107 kg
Engine Type	Single cylinder, 4-stroke, liquid-cooled
Frame	Molybdenum steel with double cradle split above the exhaust port
Rear Suspension	Monoshock