43Series 4144 Components FC, FS, KM
7.5 Handlebar 
(Bike Handle)
– Remove the control handle, 
b 5.9.3
: Take out the screws (arrows).
Handlebar and lower clamp drop 
down after the screws have been 
removed.
– Check the handle (1) and replace 
if necessary
: Pull off the handle (1).
– If the handle is stuck, carefully cut 
it open longitudinally at the 
thinnest point.
545RA165 TG545RA166 TG
1
– Line up the handle so that its long 
side (arrow) faces the cutting 
tool.
The handle must be fitted in the dry 
condition.
: Push the handle on to the 
handlebar as far as stop.
The diameters of the handlebar and 
drive tube are different.
: Position the clamp (1) with plain 
holes against the handlebar (2).
: Position the clamp block (3), slots 
(arrows) facing up, against the 
underside of the handlebar.
– Insert the screws through the 
clamp and clamp block.
545RA167 TG
545RA168 TG
2
1
3
– Position the preassembled 
handlebar on the drive tube.
– Fit the clamp (1), with tapped 
holes, against the underside of 
the drive tube.
: Fit the screws (arrows) 
– tighten them down only 
moderately at this point to allow 
for alignment.
– Swing handlebar upright, i.e. at 
an angle of 90° to the drive tube.
– Line up the handlebar so that the 
control handle is closer to the 
drive tube.
: Adjust distance from engine 
housing 
a = about 20 cm 
b = about 15 cm
– Tighten down the screws firmly.
545RA169 TG
1
a
b
545RA170 TG