39Series 4144 Components FC, FS, KM
– Check the grub screw (1) and 
throttle trigger (2) and replace if 
necessary
Make sure the grub screw (1) is in 
place.
A new throttle trigger comes with 
the grub screw fitted.
The throttle cable must be 
readjusted if a new throttle trigger is 
installed or the position of the grub 
screw is changed, b 8.6.2
: Push the torsion spring (1) into 
the guide (arrow) so that it is held 
in position.
545RA138 TG
21
545RA139 TG
1
– Fit the lever on the same side as 
the grub screw.
: Push the lever (1) onto the pivot 
pin so that the lug is below the 
shoulder (arrow).
: Push the throttle cable nipple (1) 
into the lever and engage it in the 
slot (arrow).
: Position the throttle trigger with 
lever on the mounts (arrows) so 
the leg (1) locates against the 
edge of the engine housing.
545RA140 TG
2
1
545RA141 TG
1
545RA142 TG
1
: Press the throttle trigger (1) into 
the mounts until it snaps into 
place.
The leg (2) of the torsion spring 
must locate against the edge 
(arrow) and project slightly.
: Push the throttle cable sleeve (1) 
into the guide as far as stop.
The throttle cable sleeve must butt 
against the stop (arrow).
– Install the support and fit the 
short circuit wire in the guide.
545RA143 TG
1
2
545RA144 TG
1