Husqvarna T525 - Page 33

English – 33
Repair instructions
Function
The carburettor functions dierently in the following
modes:
Cold start mode
In cold start mode the choke valve (D) is comple-
tely shut. This increases the vacuum in the carbu-
rettor and fuel is easier to suck from all the diuser
jets (E, F and G). Throttle valve (H) is partly open.
See Figure 36.
Full throttle mode
In full throttle mode both valves are open and fuel
is supplied through all three diuser jets (E, F and
G). See Figure 39.
Part throttle mode
In part throttle mode the throttle valve (H) is partly
open. Fuel is supplied through the diuser jets (F
and G). See Figure 38.
Idle mode
In idle mode throttle valve (H) is shut. Air is sucked
in through an aperture in the throttle valve and a
small amount of fuel is supplied through the dif-
fuser jet (F). See Figure 37.
Fig 36
Fig 37
Fig 39
Fig 38