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FS 410 C K
English
22
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.
The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting idle speed
Engine stops while idling
N
Turn the idle speed screw (LA)
slowly clockwise until the engine
runs smoothly.
Cutting tool rotates when engine is idling
N
Turn the idle speed screw (LA)
slowly counterclockwise until the
cutting attachment stops moving.
At temperatures below +10 °C
Pre-heating carburetor
Moving a shutter causes heated air to be
drawn in from around the cylinder and
mixed with cold air in order to prevent
carburetor icing.
An arrow on the shroud (1) shows the
position of the shutter (2) for summer or
winter operation. Key to symbols:
–
Symbol "Sun" = summer operation
–
Symbol "Snowflake" = winter
operation
Engine Management
Adjusting the Carburetor
9926BA015 KN
H L
LA
Winter Operation
2
1
9926BA016 KN