Technical Information  40.2010 Page 7
TI_40_2010_13_01_02.fm
3.5 Summer and winter operation
3.5.1 At temperatures below +10 °C
Pre-heat 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
. Unscrew and remove screw (3) on shutter
. Remove shutter (2) from the shroud
. Rotate shutter (2) from summer position to 
winter position and reinsert
. Screw the screw (3) through the shutter into the 
shroud
3.5.2 At temperatures between +10 °C and 
+20 °C
Within this temperature range, the machine can 
normally be operated with the shutter (2) in summer 
position. Change the position of the shutter as 
necessary.
2
317TI008 KN
1
2
3
317TI009 KN