Beta RR 4T-400 Workshop Manual page 143

– Remove screws 1 and throttle sensor 2.
Remove the throttle sensor only if it is defective. The
throttle speed sensor needs to be readjusted every time
screws 1 are loosened.
– Remove screw 3 and pull the connecting piece out of the car-
burettor.
– Loosen the two screws and remove the suction pump and O-
ring 4 from the carburettor.
– Unscrew choke idling jet 5 and choke main jet 6.
– Clean all the jets and the other components and blow them
with compressed air.
– Clean the carburettor body and blow all the ducts inside it.
– Check the condition of all the gaskets and replace any dam-
aged ones.
7 - Carburettor
Release 01 Date 09/2007
6
1
2
3
4
6
7