Husqvarna CR 65 2012 Workshop Manual page 152

Workshop Manual Ed. 09-2011
FUEL SUPPLY
CR 65 2012
Checking the taper needle and throttle valve
– Check that the taper needle (3) is not worn out or deformed.
3
Because of the engine vibrations the throttle valve, the floater taper needle, and
the main nozzle are subject to high wear. Wear causes carburettor malfunc-
tions (for example too rich mixture). Check and/or replace such parts every 100
operating hours.
Checking the floater needle valve
– Check for no dents on the needle valve sealing surface.
– There must be no dirt between the valve seat and the floater needle.
Checking the carburettor jets and gaskets
– Thoroughly clean all carburettor components and blow them with compressed
air.
– Replace all gaskets and O-rings.
Reassembling the carburettor
For reassembly follow the removal procedure in the reverse order.
Consider what follows:
– Check operation and stop of cold start device.
– Loosen the air adjuster screw by the number of turns previously recorded upon
disassembly. For carburettor original setting see section Technical data.
S.10